The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
J E Thomas - One of the best experts on this subject based on the ideXlab platform.
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focus on strongly correlated Quantum Fluids from ultracold Quantum gases to qcd plasmas
New Journal of Physics, 2013Co-Authors: Allan Adams, Lincoln D Carr, Thomas Schaefer, P Steinberg, J E ThomasAbstract:The last few years have witnessed a dramatic convergence of three distinct lines of research concerned with different kinds of extreme Quantum matter. Two of these involve new Quantum Fluids that can be studied in the laboratory, ultracold Quantum gases and Quantum chromodynamics (QCD) plasmas. Even though these systems involve vastly different energy scales, the physical properties of the two Quantum Fluids are remarkably similar. The third line of research is based on the discovery of a new theoretical tool for investigating the properties of extreme Quantum matter, holographic dualties. The main goal of this focus issue is to foster communication and understanding between these three fields. We proceed to describe each in more detail. Ultracold Quantum gases offer a new paradigm for the study of nonperturbative Quantum many-body physics. With widely tunable interaction strength, spin composition, and temperature, using different hyperfine states one can model spin-1/2 fermions, spin-3/2 fermions, and many other spin structures of bosons, fermions, and mixtures thereof. Such systems have produced a revolution in the study of strongly interacting Fermi systems, for example in the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensate (BEC) crossover region, where a close collaboration between experimentalists and theorists—typical in this field—enabled ground-breaking studies in an area spanning several decades. Half-way through this crossover, when the scattering length characterizing low-energy collisions diverges, one obtains a unitary Quantum gas, which is universal and scale invariant. The unitary gas has close parallels in the hydrodynamics of QCD plasmas, where the ratio of viscosity to entropy density is extremely low and comparable to the minimum viscosity conjecture, an important prediction of AdS/CFT (see below). Exciting developments in the thermodynamic and transport properties of strongly interacting Fermi gases are of broad interdisciplinary appeal and include new studies of high temperature superfluidity, viscosity, spin-transport, spin-imbalanced mixtures, and three-component gases, this last having a close parallel to color superconductivity. Another system important for the field of strongly-interacting Quantum Fluids was revealed by analysis of data from the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. Despite naive expectations based on asymptotic freedom that the deconfinement of quarks and gluons at high temperatures would lead to a weakly-interacting quark gluon plasma (QGP), the system appeared to be quite strongly coupled. Subsequent estimates of the viscosity-to-entropy ratio suggest that the system is tantalizingly close to the postulated bound from AdS/CFT calculations. The field is quite dynamic at the moment; new measurements are expected from upgraded detectors at RHIC, and an entirely new energy regime is being opened up by heavy ion collisions at the Large Hadron Collider (LHC) at CERN. On the theoretical side, much work remains to be done to extract the precise values of the transport coefficients, and to characterize the nature of quasi-particle excitations in the plasma. Finally, holographic dualities such as anti-de Sitter/conformal field theory (AdS/CFT) have opened a new theoretical window on strongly correlated Fluids. Holography relates strongly-interacting Quantum many-body systems to weakly-coupled semi-classical gravitational systems, replacing quasiparticles with geometry and translating various difficult questions about Quantum Fluids into simple and calculable geometric exercises. Already, some of the earliest lessons of holography, such as the conjectural bound on the viscosity-to-entropy ratio, have had a considerable impact on the theoretical and experimental study of strongly correlated Fluids, from RHIC to ultracold atoms. More recently, the study of holographic superconductors, non-Fermi liquids and unitary Quantum gases has touched off a flurry of interest in holography as a toolkit for studying strongly-correlated many-body systems more generally. Holography also allows us to use results from Quantum Fluids to study classical and Quantum gravity; for example, the phase structure of a Quantum many-body system translates into a rich classification of black holes in the dual space–time. Given both the rapid progress in applied holography and the exciting developments in ultracold Quantum gases and QCD plasmas discussed above, the time is ripe for new collaborations across traditional lines of specialization. This focus issue explores the convergence between three heretofore separate areas of physics. Over forty research groups have contributed original work, and there will be a review article which complements these advances, overviewing them and presenting them in the context of all three fields and their interconnections. The review concludes with a list of open questions. This sets the tone for the present focus issue; namely, interdisciplinary dialog, openness, innovation, and possibility, an emphasis for which New Journal of Physics, an open-access journal of the highest quality, is especially fitted.
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strongly correlated Quantum Fluids ultracold Quantum gases Quantum chromodynamic plasmas and holographic duality
New Journal of Physics, 2012Co-Authors: Allan Adams, Lincoln D Carr, P Steinberg, Thomas Schafer, J E ThomasAbstract:Strongly correlated Quantum Fluids are phases of matter that are intrinsically Quantum mechanical and that do not have a simple description in terms of weakly interacting quasiparticles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by 19 orders of magnitude in temperature, but were shown to exhibit very similar hydrodynamic flows. In particular, both Fluids exhibit a robustly low shear viscosity to entropy density ratio, which is characteristic of Quantum Fluids described by holographic duality, a mapping from strongly correlated Quantum field theories to weakly curved higher dimensional classical gravity. This review explores the connection
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strongly correlated Quantum Fluids ultracold Quantum gases Quantum chromodynamic plasmas and holographic duality
arXiv: High Energy Physics - Theory, 2012Co-Authors: Allan Adams, Lincoln D Carr, Thomas Schaefer, P Steinberg, J E ThomasAbstract:Strongly correlated Quantum Fluids are phases of matter that are intrinsically Quantum mechanical, and that do not have a simple description in terms of weakly interacting quasi-particles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by more than 20 orders of magnitude in temperature, but they were shown to exhibit very similar hydrodynamic flow. In particular, both Fluids exhibit a robustly low shear viscosity to entropy density ratio which is characteristic of Quantum Fluids described by holographic duality, a mapping from strongly correlated Quantum field theories to weakly curved higher dimensional classical gravity. This review explores the connection between these fields, and it also serves as an introduction to the Focus Issue of New Journal of Physics on Strongly Correlated Quantum Fluids: from Ultracold Quantum Gases to QCD Plasmas. The presentation is made accessible to the general physics reader and includes discussions of the latest research developments in all three areas.
B. Jancovici - One of the best experts on this subject based on the ideXlab platform.
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Wigner–Kirkwood expansion for semi-infinite Quantum Fluids
Journal of Statistical Mechanics: Theory and Experiment, 2007Co-Authors: L. Samaj, B. JancoviciAbstract:For infinite (bulk) Quantum Fluids of particles interacting via pairwise sufficiently smooth interactions, the Wigner–Kirkwood formalism provides a semiclassical expansion of the Boltzmann density in configuration space in even powers of the thermal de Broglie wavelength λ. This result permits one to generate an analogous λ-expansion for the bulk free energy and many-body densities. The present paper brings a technically non-trivial generalization of the Wigner–Kirkwood technique to semi-infinite Quantum Fluids, constrained by a plane hard wall impenetrable to particles. In contrast to the bulk case, the resulting Boltzmann density also involves position-dependent terms of type exp(−2x2/λ2) (x denotes the distance from the wall boundary) which are non-analytic functions of the de Broglie wavelength λ. Under some condition, the analyticity in λ is restored by integrating the Boltzmann density over configuration space; however, in contrast to the bulk free energy, the semiclassical expansion of the surface part of the free energy (surface tension) contains odd powers of λ, too. Explicit expressions for the leading Quantum corrections in the presence of the boundary are given for the one-body and two-body densities. As model systems for explicit calculations, we use Coulomb Fluids, in particular the one-component plasma defined in the ν-dimensional (integer ν ≥ 2) space.
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Wigner-Kirkwood expansion for semi-infinite Quantum Fluids
Journal of Statistical Mechanics: Theory and Experiment, 2007Co-Authors: L. Samaj, B. JancoviciAbstract:For infinite (bulk) Quantum Fluids of particles interacting via pairwise sufficiently smooth interactions, the Wigner-Kirkwood formalism provides a semiclassical expansion of the Boltzmann density in configuration space in even powers of the thermal de Broglie wavelength $\lambda$. This result permits one to generate an analogous $\lambda$-expansion for the bulk free energy and many-body densities. The present paper brings a technically nontrivial generalization of the Wigner-Kirkwood technique to semi-infinite Quantum Fluids, constrained by a plane hard wall impenetrable to particles. In contrast to the bulk case, the resulting Boltzmann density involves also position-dependent terms of type $\exp(-2x^2/\lambda^2)$ ($x$ denotes the distance from the wall boundary) which are non-analytic in $\lambda$. Under some condition, the analyticity in $\lambda$ is restored by integrating the Boltzmann density over configuration space; however, in contrast to the bulk free energy, the semiclassical expansion of the surface part of the free energy (surface tension) contains odd powers of $\lambda$, too. Explicit expressions for the leading Quantum corrections in the presence of the boundary are given for the one-body and two-body densities. As model systems for explicit calculations, we use Coulomb Fluids, in particular the one-component plasma defined in the $\nu$-dimensional (integer $\nu\ge 2$) space.
Matthias Kaminski - One of the best experts on this subject based on the ideXlab platform.
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hydrodynamics of simply spinning black holes hydrodynamics for spinning Quantum Fluids
Journal of High Energy Physics, 2020Co-Authors: Markus Garbiso, Matthias KaminskiAbstract:We find hydrodynamic behavior in large simply spinning five-dimensional Anti-de Sitter black holes. These are dual to spinning Quantum Fluids through the AdS/CFT correspondence constructed from string theory. Due to the spatial anisotropy introduced by the angular momentum, hydrodynamic transport coefficients are split into groups longitudinal or transverse to the angular momentum, and aligned or anti-aligned with it. Analytic expressions are provided for the two shear viscosities, the longitudinal momentum diffusion coefficient, two speeds of sound, and two sound attenuation coefficients. Known relations between these coefficients are generalized to include dependence on angular momentum. The shear viscosity to entropy density ratio varies between zero and 1/(4π) depending on the direction of the shear. These results can be applied to heavy ion collisions, in which the most vortical fluid was reported recently. In passing, we show that large simply spinning five-dimensional Myers-Perry black holes are perturbatively stable for all angular momenta below extremality.
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hydrodynamics of simply spinning black holes hydrodynamics for spinning Quantum Fluids
arXiv: High Energy Physics - Theory, 2020Co-Authors: Markus Garbiso, Matthias KaminskiAbstract:We find hydrodynamic behavior in large simply spinning five-dimensional Anti-de Sitter black holes. These are dual to spinning Quantum Fluids through the AdS/CFT correspondence constructed from string theory. Due to the spatial anisotropy introduced by the angular momentum in the system, hydrodynamic transport coefficients split into one group longitudinal and another transverse to the angular momentum. Analytic expressions are provided for the two shear viscosities, the longitudinal momentum diffusion coefficient, two speeds of sound, and two sound attenuation coefficients. Known relations between these coefficients are generalized to include dependence on angular momentum. The shear viscosity to entropy density ratio varies between zero and 1/(4$\pi$) depending on the direction of the shear. These results can be applied to heavy ion collisions, in which the most vortical fluid was reported recently. In passing, we show that large simply spinning five-dimensional Myers-Perry black holes are perturbatively stable for all angular momenta below extremality.
Allan Adams - One of the best experts on this subject based on the ideXlab platform.
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focus on strongly correlated Quantum Fluids from ultracold Quantum gases to qcd plasmas
New Journal of Physics, 2013Co-Authors: Allan Adams, Lincoln D Carr, Thomas Schaefer, P Steinberg, J E ThomasAbstract:The last few years have witnessed a dramatic convergence of three distinct lines of research concerned with different kinds of extreme Quantum matter. Two of these involve new Quantum Fluids that can be studied in the laboratory, ultracold Quantum gases and Quantum chromodynamics (QCD) plasmas. Even though these systems involve vastly different energy scales, the physical properties of the two Quantum Fluids are remarkably similar. The third line of research is based on the discovery of a new theoretical tool for investigating the properties of extreme Quantum matter, holographic dualties. The main goal of this focus issue is to foster communication and understanding between these three fields. We proceed to describe each in more detail. Ultracold Quantum gases offer a new paradigm for the study of nonperturbative Quantum many-body physics. With widely tunable interaction strength, spin composition, and temperature, using different hyperfine states one can model spin-1/2 fermions, spin-3/2 fermions, and many other spin structures of bosons, fermions, and mixtures thereof. Such systems have produced a revolution in the study of strongly interacting Fermi systems, for example in the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensate (BEC) crossover region, where a close collaboration between experimentalists and theorists—typical in this field—enabled ground-breaking studies in an area spanning several decades. Half-way through this crossover, when the scattering length characterizing low-energy collisions diverges, one obtains a unitary Quantum gas, which is universal and scale invariant. The unitary gas has close parallels in the hydrodynamics of QCD plasmas, where the ratio of viscosity to entropy density is extremely low and comparable to the minimum viscosity conjecture, an important prediction of AdS/CFT (see below). Exciting developments in the thermodynamic and transport properties of strongly interacting Fermi gases are of broad interdisciplinary appeal and include new studies of high temperature superfluidity, viscosity, spin-transport, spin-imbalanced mixtures, and three-component gases, this last having a close parallel to color superconductivity. Another system important for the field of strongly-interacting Quantum Fluids was revealed by analysis of data from the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. Despite naive expectations based on asymptotic freedom that the deconfinement of quarks and gluons at high temperatures would lead to a weakly-interacting quark gluon plasma (QGP), the system appeared to be quite strongly coupled. Subsequent estimates of the viscosity-to-entropy ratio suggest that the system is tantalizingly close to the postulated bound from AdS/CFT calculations. The field is quite dynamic at the moment; new measurements are expected from upgraded detectors at RHIC, and an entirely new energy regime is being opened up by heavy ion collisions at the Large Hadron Collider (LHC) at CERN. On the theoretical side, much work remains to be done to extract the precise values of the transport coefficients, and to characterize the nature of quasi-particle excitations in the plasma. Finally, holographic dualities such as anti-de Sitter/conformal field theory (AdS/CFT) have opened a new theoretical window on strongly correlated Fluids. Holography relates strongly-interacting Quantum many-body systems to weakly-coupled semi-classical gravitational systems, replacing quasiparticles with geometry and translating various difficult questions about Quantum Fluids into simple and calculable geometric exercises. Already, some of the earliest lessons of holography, such as the conjectural bound on the viscosity-to-entropy ratio, have had a considerable impact on the theoretical and experimental study of strongly correlated Fluids, from RHIC to ultracold atoms. More recently, the study of holographic superconductors, non-Fermi liquids and unitary Quantum gases has touched off a flurry of interest in holography as a toolkit for studying strongly-correlated many-body systems more generally. Holography also allows us to use results from Quantum Fluids to study classical and Quantum gravity; for example, the phase structure of a Quantum many-body system translates into a rich classification of black holes in the dual space–time. Given both the rapid progress in applied holography and the exciting developments in ultracold Quantum gases and QCD plasmas discussed above, the time is ripe for new collaborations across traditional lines of specialization. This focus issue explores the convergence between three heretofore separate areas of physics. Over forty research groups have contributed original work, and there will be a review article which complements these advances, overviewing them and presenting them in the context of all three fields and their interconnections. The review concludes with a list of open questions. This sets the tone for the present focus issue; namely, interdisciplinary dialog, openness, innovation, and possibility, an emphasis for which New Journal of Physics, an open-access journal of the highest quality, is especially fitted.
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strongly correlated Quantum Fluids ultracold Quantum gases Quantum chromodynamic plasmas and holographic duality
New Journal of Physics, 2012Co-Authors: Allan Adams, Lincoln D Carr, P Steinberg, Thomas Schafer, J E ThomasAbstract:Strongly correlated Quantum Fluids are phases of matter that are intrinsically Quantum mechanical and that do not have a simple description in terms of weakly interacting quasiparticles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by 19 orders of magnitude in temperature, but were shown to exhibit very similar hydrodynamic flows. In particular, both Fluids exhibit a robustly low shear viscosity to entropy density ratio, which is characteristic of Quantum Fluids described by holographic duality, a mapping from strongly correlated Quantum field theories to weakly curved higher dimensional classical gravity. This review explores the connection
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strongly correlated Quantum Fluids ultracold Quantum gases Quantum chromodynamic plasmas and holographic duality
arXiv: High Energy Physics - Theory, 2012Co-Authors: Allan Adams, Lincoln D Carr, Thomas Schaefer, P Steinberg, J E ThomasAbstract:Strongly correlated Quantum Fluids are phases of matter that are intrinsically Quantum mechanical, and that do not have a simple description in terms of weakly interacting quasi-particles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by more than 20 orders of magnitude in temperature, but they were shown to exhibit very similar hydrodynamic flow. In particular, both Fluids exhibit a robustly low shear viscosity to entropy density ratio which is characteristic of Quantum Fluids described by holographic duality, a mapping from strongly correlated Quantum field theories to weakly curved higher dimensional classical gravity. This review explores the connection between these fields, and it also serves as an introduction to the Focus Issue of New Journal of Physics on Strongly Correlated Quantum Fluids: from Ultracold Quantum Gases to QCD Plasmas. The presentation is made accessible to the general physics reader and includes discussions of the latest research developments in all three areas.
Lincoln D Carr - One of the best experts on this subject based on the ideXlab platform.
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focus on strongly correlated Quantum Fluids from ultracold Quantum gases to qcd plasmas
New Journal of Physics, 2013Co-Authors: Allan Adams, Lincoln D Carr, Thomas Schaefer, P Steinberg, J E ThomasAbstract:The last few years have witnessed a dramatic convergence of three distinct lines of research concerned with different kinds of extreme Quantum matter. Two of these involve new Quantum Fluids that can be studied in the laboratory, ultracold Quantum gases and Quantum chromodynamics (QCD) plasmas. Even though these systems involve vastly different energy scales, the physical properties of the two Quantum Fluids are remarkably similar. The third line of research is based on the discovery of a new theoretical tool for investigating the properties of extreme Quantum matter, holographic dualties. The main goal of this focus issue is to foster communication and understanding between these three fields. We proceed to describe each in more detail. Ultracold Quantum gases offer a new paradigm for the study of nonperturbative Quantum many-body physics. With widely tunable interaction strength, spin composition, and temperature, using different hyperfine states one can model spin-1/2 fermions, spin-3/2 fermions, and many other spin structures of bosons, fermions, and mixtures thereof. Such systems have produced a revolution in the study of strongly interacting Fermi systems, for example in the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensate (BEC) crossover region, where a close collaboration between experimentalists and theorists—typical in this field—enabled ground-breaking studies in an area spanning several decades. Half-way through this crossover, when the scattering length characterizing low-energy collisions diverges, one obtains a unitary Quantum gas, which is universal and scale invariant. The unitary gas has close parallels in the hydrodynamics of QCD plasmas, where the ratio of viscosity to entropy density is extremely low and comparable to the minimum viscosity conjecture, an important prediction of AdS/CFT (see below). Exciting developments in the thermodynamic and transport properties of strongly interacting Fermi gases are of broad interdisciplinary appeal and include new studies of high temperature superfluidity, viscosity, spin-transport, spin-imbalanced mixtures, and three-component gases, this last having a close parallel to color superconductivity. Another system important for the field of strongly-interacting Quantum Fluids was revealed by analysis of data from the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. Despite naive expectations based on asymptotic freedom that the deconfinement of quarks and gluons at high temperatures would lead to a weakly-interacting quark gluon plasma (QGP), the system appeared to be quite strongly coupled. Subsequent estimates of the viscosity-to-entropy ratio suggest that the system is tantalizingly close to the postulated bound from AdS/CFT calculations. The field is quite dynamic at the moment; new measurements are expected from upgraded detectors at RHIC, and an entirely new energy regime is being opened up by heavy ion collisions at the Large Hadron Collider (LHC) at CERN. On the theoretical side, much work remains to be done to extract the precise values of the transport coefficients, and to characterize the nature of quasi-particle excitations in the plasma. Finally, holographic dualities such as anti-de Sitter/conformal field theory (AdS/CFT) have opened a new theoretical window on strongly correlated Fluids. Holography relates strongly-interacting Quantum many-body systems to weakly-coupled semi-classical gravitational systems, replacing quasiparticles with geometry and translating various difficult questions about Quantum Fluids into simple and calculable geometric exercises. Already, some of the earliest lessons of holography, such as the conjectural bound on the viscosity-to-entropy ratio, have had a considerable impact on the theoretical and experimental study of strongly correlated Fluids, from RHIC to ultracold atoms. More recently, the study of holographic superconductors, non-Fermi liquids and unitary Quantum gases has touched off a flurry of interest in holography as a toolkit for studying strongly-correlated many-body systems more generally. Holography also allows us to use results from Quantum Fluids to study classical and Quantum gravity; for example, the phase structure of a Quantum many-body system translates into a rich classification of black holes in the dual space–time. Given both the rapid progress in applied holography and the exciting developments in ultracold Quantum gases and QCD plasmas discussed above, the time is ripe for new collaborations across traditional lines of specialization. This focus issue explores the convergence between three heretofore separate areas of physics. Over forty research groups have contributed original work, and there will be a review article which complements these advances, overviewing them and presenting them in the context of all three fields and their interconnections. The review concludes with a list of open questions. This sets the tone for the present focus issue; namely, interdisciplinary dialog, openness, innovation, and possibility, an emphasis for which New Journal of Physics, an open-access journal of the highest quality, is especially fitted.
-
strongly correlated Quantum Fluids ultracold Quantum gases Quantum chromodynamic plasmas and holographic duality
New Journal of Physics, 2012Co-Authors: Allan Adams, Lincoln D Carr, P Steinberg, Thomas Schafer, J E ThomasAbstract:Strongly correlated Quantum Fluids are phases of matter that are intrinsically Quantum mechanical and that do not have a simple description in terms of weakly interacting quasiparticles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by 19 orders of magnitude in temperature, but were shown to exhibit very similar hydrodynamic flows. In particular, both Fluids exhibit a robustly low shear viscosity to entropy density ratio, which is characteristic of Quantum Fluids described by holographic duality, a mapping from strongly correlated Quantum field theories to weakly curved higher dimensional classical gravity. This review explores the connection
-
strongly correlated Quantum Fluids ultracold Quantum gases Quantum chromodynamic plasmas and holographic duality
arXiv: High Energy Physics - Theory, 2012Co-Authors: Allan Adams, Lincoln D Carr, Thomas Schaefer, P Steinberg, J E ThomasAbstract:Strongly correlated Quantum Fluids are phases of matter that are intrinsically Quantum mechanical, and that do not have a simple description in terms of weakly interacting quasi-particles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by more than 20 orders of magnitude in temperature, but they were shown to exhibit very similar hydrodynamic flow. In particular, both Fluids exhibit a robustly low shear viscosity to entropy density ratio which is characteristic of Quantum Fluids described by holographic duality, a mapping from strongly correlated Quantum field theories to weakly curved higher dimensional classical gravity. This review explores the connection between these fields, and it also serves as an introduction to the Focus Issue of New Journal of Physics on Strongly Correlated Quantum Fluids: from Ultracold Quantum Gases to QCD Plasmas. The presentation is made accessible to the general physics reader and includes discussions of the latest research developments in all three areas.
