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A E Shabad - One of the best experts on this subject based on the ideXlab platform.
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Magnetic response to applied electroStatic field in external magnetic field
The European Physical Journal C, 2014Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:We show, within QED and other possible nonlinear theories, that a Static Charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the Charge, depends on its size and is parallel to the external field, provided the Charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electroStatic field. Referring to the simple example of a spherically symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space; the pattern of the lines of force is depicted, both inside and outside the Charge, which resembles that of a standard solenoid of classical magnetoStatics.
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electric Charge is a magnetic dipole when placed in a background magnetic field
Physical Review D, 2014Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:It is demonstrated, owing to the nonlinearity of QED, that a Static Charge placed in a strong magnetic field\ $B$\ is a magnetic dipole (besides remaining an electric monopole, as well). Its magnetic moment grows linearly with $B$ as long as the latter remains smaller than the characteristic value of $1.2\cdot 10^{13}\unit{G}$ but tends to a constant as $B$ exceeds that value. The force acting on a densely Charged object by the dipole magnetic field of a neutron star is estimated.
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magnetic response to applied electroStatic field in external magnetic field
arXiv: High Energy Physics - Theory, 2013Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:We show, within QED and other possible nonlinear theories, that a Static Charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the Charge, depends on its size and is parallel to the external field, provided the Charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electroStatic field. Referring to a simple example of a spherically-symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space, the pattern of lines of force is depicted, both inside and outside the Charge, which resembles that of a standard solenoid of classical magnetoStatics.
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nonlinear magnetic correction to the field of a Static Charge in an external field
Physical Review D, 2012Co-Authors: D M Gitman, A E ShabadAbstract:We find first nonlinear correction to the field, produced by a Static Charge at rest in a background constant magnetic field. It is quadratic in the Charge and purely magnetic. The third-rank polarization tensor - the nonlinear response function - is written within the local approximation of the effective action in an otherwise model- and approximation-independent way within any P-invariant nonlinear electrodynamics, QED included.
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nonlinear magnetic correction to the field of a Static Charge in an external field
Physical Review D, 2012Co-Authors: D M Gitman, A E ShabadAbstract:We find the first nonlinear correction to the field produced by a Static Charge at rest in a background constant magnetic field. It is quadratic in the Charge and purely magnetic. The third-rank polarization tensor---the nonlinear response function---is written within the local approximation of the effective action in an otherwise model- and approximation-independent way within any $P$-invariant nonlinear electrodynamics, QED included.
D M Gitman - One of the best experts on this subject based on the ideXlab platform.
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Magnetic response to applied electroStatic field in external magnetic field
The European Physical Journal C, 2014Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:We show, within QED and other possible nonlinear theories, that a Static Charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the Charge, depends on its size and is parallel to the external field, provided the Charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electroStatic field. Referring to the simple example of a spherically symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space; the pattern of the lines of force is depicted, both inside and outside the Charge, which resembles that of a standard solenoid of classical magnetoStatics.
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electric Charge is a magnetic dipole when placed in a background magnetic field
Physical Review D, 2014Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:It is demonstrated, owing to the nonlinearity of QED, that a Static Charge placed in a strong magnetic field\ $B$\ is a magnetic dipole (besides remaining an electric monopole, as well). Its magnetic moment grows linearly with $B$ as long as the latter remains smaller than the characteristic value of $1.2\cdot 10^{13}\unit{G}$ but tends to a constant as $B$ exceeds that value. The force acting on a densely Charged object by the dipole magnetic field of a neutron star is estimated.
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magnetic response to applied electroStatic field in external magnetic field
arXiv: High Energy Physics - Theory, 2013Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:We show, within QED and other possible nonlinear theories, that a Static Charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the Charge, depends on its size and is parallel to the external field, provided the Charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electroStatic field. Referring to a simple example of a spherically-symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space, the pattern of lines of force is depicted, both inside and outside the Charge, which resembles that of a standard solenoid of classical magnetoStatics.
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nonlinear magnetic correction to the field of a Static Charge in an external field
Physical Review D, 2012Co-Authors: D M Gitman, A E ShabadAbstract:We find first nonlinear correction to the field, produced by a Static Charge at rest in a background constant magnetic field. It is quadratic in the Charge and purely magnetic. The third-rank polarization tensor - the nonlinear response function - is written within the local approximation of the effective action in an otherwise model- and approximation-independent way within any P-invariant nonlinear electrodynamics, QED included.
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nonlinear magnetic correction to the field of a Static Charge in an external field
Physical Review D, 2012Co-Authors: D M Gitman, A E ShabadAbstract:We find the first nonlinear correction to the field produced by a Static Charge at rest in a background constant magnetic field. It is quadratic in the Charge and purely magnetic. The third-rank polarization tensor---the nonlinear response function---is written within the local approximation of the effective action in an otherwise model- and approximation-independent way within any $P$-invariant nonlinear electrodynamics, QED included.
T C Adorno - One of the best experts on this subject based on the ideXlab platform.
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Magnetic response to applied electroStatic field in external magnetic field
The European Physical Journal C, 2014Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:We show, within QED and other possible nonlinear theories, that a Static Charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the Charge, depends on its size and is parallel to the external field, provided the Charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electroStatic field. Referring to the simple example of a spherically symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space; the pattern of the lines of force is depicted, both inside and outside the Charge, which resembles that of a standard solenoid of classical magnetoStatics.
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electric Charge is a magnetic dipole when placed in a background magnetic field
Physical Review D, 2014Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:It is demonstrated, owing to the nonlinearity of QED, that a Static Charge placed in a strong magnetic field\ $B$\ is a magnetic dipole (besides remaining an electric monopole, as well). Its magnetic moment grows linearly with $B$ as long as the latter remains smaller than the characteristic value of $1.2\cdot 10^{13}\unit{G}$ but tends to a constant as $B$ exceeds that value. The force acting on a densely Charged object by the dipole magnetic field of a neutron star is estimated.
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magnetic response to applied electroStatic field in external magnetic field
arXiv: High Energy Physics - Theory, 2013Co-Authors: T C Adorno, D M Gitman, A E ShabadAbstract:We show, within QED and other possible nonlinear theories, that a Static Charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the Charge, depends on its size and is parallel to the external field, provided the Charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electroStatic field. Referring to a simple example of a spherically-symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space, the pattern of lines of force is depicted, both inside and outside the Charge, which resembles that of a standard solenoid of classical magnetoStatics.
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classical noncommutative electrodynamics with external source
Physical Review D, 2011Co-Authors: T C Adorno, D M Gitman, A E Shabad, D V VassilevichAbstract:In a U(1)⋆-noncommutative (NC) gauge field theory we extend the Seiberg-Witten (SW) map to include the (gauge-invariance-violating) external current and formulate – to the first order in the NC parameter – gauge-covariant classical field equations. We find solutions to these equations in the vacuum and in an external magnetic field, when the 4-current is a Static electric Charge of a finite size a, restricted from below by the elementary length. We impose extra boundary conditions, which we use to rule out all singularities, 1/r included, from the solutions. The Static Charge proves to be a magnetic dipole, with its magnetic moment being inversely proportional to its size a. The external magnetic field modifies the long-range Coulomb field and some electromagnetic form-factors. We also analyze the ambiguity in the SW map and show that at least to the order studied here it is equivalent to the ambiguity of adding a homogeneous solution to the current-conservation equation.
Aaron D Kaplan - One of the best experts on this subject based on the ideXlab platform.
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interpretations of ground state symmetry breaking and strong correlation in wavefunction and density functional theories
Proceedings of the National Academy of Sciences of the United States of America, 2021Co-Authors: John P Perdew, Adrienn Ruzsinszky, Jianwei Sun, Niraj K Nepal, Aaron D KaplanAbstract:Strong correlations within a symmetry-unbroken ground-state wavefunction can show up in approximate density functional theory as symmetry-broken spin densities or total densities, which are sometimes observable. They can arise from soft modes of fluctuations (sometimes collective excitations) such as spin-density or Charge-density waves at nonzero wavevector. In this sense, an approximate density functional for exchange and correlation that breaks symmetry can be more revealing (albeit less accurate) than an exact functional that does not. The examples discussed here include the stretched H2 molecule, antiferromagnetic solids, and the Static Charge-density wave/Wigner crystal phase of a low-density jellium. Time-dependent density functional theory is used to show quantitatively that the Static Charge-density wave is a soft plasmon. More precisely, the frequency of a related density fluctuation drops to zero, as found from the frequency moments of the spectral function, calculated from a recent constraint-based wavevector- and frequency-dependent jellium exchange-correlation kernel.
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interpretations of ground state symmetry breaking and strong correlation in wavefunction and density functional theories
arXiv: Strongly Correlated Electrons, 2020Co-Authors: John P Perdew, Adrienn Ruzsinszky, Jianwei Sun, Niraj K Nepal, Aaron D KaplanAbstract:Strong correlations within a symmetry-unbroken ground-state wavefunction can show up in approximate density functional theory as symmetry-broken spin-densities or total densities, which are sometimes observable. They can arise from soft modes of fluctuations (sometimes collective excitations) such as spin-density or Charge-density waves at non-zero wavevector. In this sense, an approximate density functional for exchange and correlation that breaks symmetry can be more revealing (albeit less accurate) than an exact functional that does not. The examples discussed here include the stretched H$_2$ molecule, antiferromagnetic solids, and the Static Charge-density wave/Wigner crystal phase of a low-density jellium. It is shown that (and in what sense) the Static Charge density wave is a soft plasmon.
Seongpil Hwang - One of the best experts on this subject based on the ideXlab platform.
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can Static electricity on a conductor drive a redox reaction contact electrification of au by polydimethylsiloxane Charge inversion in water and redox reaction
Journal of the American Chemical Society, 2018Co-Authors: Kyungsoon Park, Jaewon Jang, Juhyoun Kwak, Seongpil HwangAbstract:We investigated the Static Charge generation by contact electrification between Au and polydimethylsiloxane (PDMS) and the redox reaction by the Static Charge in the aqueous phase, to reveal the mechanism of contact electrification and redox reaction which may be applied to mechanical-to-chemical energy harvesting. First, the Static Charge distribution on the equipotential Au was probed through Kelvin probe force microscopy (KPFM) in air after the contact with patterned PDMS. Positive Charges are localized on the contact areas indicating the ion migration while the polarity becomes negative after water contact. Second, the redox reaction by the Charged Au was electrochemically monitored using open circuit potential (OCP), stripping voltammetry, and copper underpotential deposition (UPD). All electrochemical experiments consistently resulted in the reduction of the reactant by the Charged Au within the highly dielectric water media. We concluded that the reduction is not driven by the disCharge of Static c...
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Can Static Electricity on a Conductor Drive a Redox Reaction: Contact Electrification of Au by Polydimethylsiloxane, Charge Inversion in Water, and Redox Reaction
2018Co-Authors: Changsuk Yun, Kyungsoon Park, Jaewon Jang, Juhyoun Kwak, Seung-hoon Lee, Jehyeok Ryu, Seongpil HwangAbstract:We investigated the Static Charge generation by contact electrification between Au and polydimethylsiloxane (PDMS) and the redox reaction by the Static Charge in the aqueous phase, to reveal the mechanism of contact electrification and redox reaction which may be applied to mechanical-to-chemical energy harvesting. First, the Static Charge distribution on the equipotential Au was probed through Kelvin probe force microscopy (KPFM) in air after the contact with patterned PDMS. Positive Charges are localized on the contact areas indicating the ion migration while the polarity becomes negative after water contact. Second, the redox reaction by the Charged Au was electrochemically monitored using open circuit potential (OCP), stripping voltammetry, and copper underpotential deposition (UPD). All electrochemical experiments consistently resulted in the reduction of the reactant by the Charged Au within the highly dielectric water media. We concluded that the reduction is not driven by the disCharge of Static Charge on Au but by reducing radicals
