The Experts below are selected from a list of 54636 Experts worldwide ranked by ideXlab platform
Daniel Stopper - One of the best experts on this subject based on the ideXlab platform.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a...
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
arXiv: Soft Condensed Matter, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We re-visit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties as manifest in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function $h(r)$ which is, in turn, controlled by the form of the pair direct Correlation Function $c(r)$. The decay of $r h(r)$ to zero can be either exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decay. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value $\chi_T=\chi_T^\text{id}$. We test our hypothesis by considering four commonly used models for simple fluids. In all cases the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths
Robert Evans - One of the best experts on this subject based on the ideXlab platform.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a...
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
arXiv: Soft Condensed Matter, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We re-visit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties as manifest in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function $h(r)$ which is, in turn, controlled by the form of the pair direct Correlation Function $c(r)$. The decay of $r h(r)$ to zero can be either exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decay. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value $\chi_T=\chi_T^\text{id}$. We test our hypothesis by considering four commonly used models for simple fluids. In all cases the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths
Hiroshi Frusawa - One of the best experts on this subject based on the ideXlab platform.
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electrostatic contribution to colloidal solvation in terms of the self energy modified boltzmann distribution
Physical Review E, 2020Co-Authors: Hiroshi FrusawaAbstract:Electrostatic interactions make a large contribution to solvation free energy in ionic fluids such as electrolytes and colloidal dispersions. The electrostatic contribution to solvation free energy has been ascribed to the self-energy of a charged particle. Here we apply a variational field theory based on lower bound inequality to the inhomogeneous fluids of one-component charged hard-spheres, thereby verifying that the self-energy is given by the difference between the Total Correlation Function and direct Correlation Function. Based on the knowledge of the liquid state theory, the self-energy specified in this study not only relates a direct Correlation Function to the Gaussian smearing of each charged sphere, but also provides the electrostatic contribution to solvation free energy that shows good agreement with simulation results. Furthermore, the Ornstein-Zernike equation leads to a set of generalized Debye-Huckel equations reflecting the Gaussian distributed charges.
Roland Roth - One of the best experts on this subject based on the ideXlab platform.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a...
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
arXiv: Soft Condensed Matter, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We re-visit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties as manifest in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function $h(r)$ which is, in turn, controlled by the form of the pair direct Correlation Function $c(r)$. The decay of $r h(r)$ to zero can be either exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decay. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value $\chi_T=\chi_T^\text{id}$. We test our hypothesis by considering four commonly used models for simple fluids. In all cases the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths
Hendrik Hansengoos - One of the best experts on this subject based on the ideXlab platform.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a...
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
Journal of Chemical Physics, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We revisit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties, as manifested in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function h(r) which is, in turn, controlled by the form of the pair direct Correlation Function c(r). The decay of rh(r) to zero can be exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decays. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value χT=χTid. We test our hypothesis by considering four commonly used models for simple fluids. In all cases, the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths.
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on the decay of the pair Correlation Function and the line of vanishing excess isothermal compressibility in simple fluids
arXiv: Soft Condensed Matter, 2019Co-Authors: Daniel Stopper, Hendrik Hansengoos, Roland Roth, Robert EvansAbstract:We re-visit the competition between attractive and repulsive interparticle forces in simple fluids and how this governs and connects the macroscopic phase behavior and structural properties as manifest in pair Correlation Functions. We focus on the asymptotic decay of the Total Correlation Function $h(r)$ which is, in turn, controlled by the form of the pair direct Correlation Function $c(r)$. The decay of $r h(r)$ to zero can be either exponential (monotonic) if attraction dominates repulsion and exponentially damped oscillatory otherwise. The Fisher-Widom (FW) line separates the phase diagram into two regions characterized by the two different types of asymptotic decay. We show that there is a new and physically intuitive thermodynamic criterion which approximates well the actual FW line. This new criterion defines a line where the isothermal compressibility takes its ideal gas value $\chi_T=\chi_T^\text{id}$. We test our hypothesis by considering four commonly used models for simple fluids. In all cases the new criterion yields a line in the phase diagram that is close to the actual FW line for the thermodynamic state points that are most relevant. We also investigate (Widom) lines of maximal Correlation length, emphasizing the importance of distinguishing between the true and Ornstein-Zernike Correlation lengths