aqora

Quantum Monte Carlo Methods for the Nuclear Many Body Problem at Finite Temperature

Y. Alhassid

Springer eBooksJan 1, 20020 citations

Effective Linear Two-Body Method for Many-Body Problems in Atomic and Nuclear Physics

Y.E. Kim, Alexander L. Zubarev

Few-body systems. SupplementumJan 1, 20000 citations

Thermal-density-functional-theory approach to quantum thermodynamics

Antonio Palamara, Francesco Plastina, A. Sindona +1 more

Understanding the thermodynamic properties of many-body quantum systems and their emergence from microscopic laws is a topic of great significance due to its profound fundamental implications and extensive practical applications. Recent advances in experimental techniques for controlling and preparing these systems have increased interest in this area, as they have the potential to drive the development of quantum technologies. In this study, we present a density-functional-theory approach to extract detailed information about the statistics of work and the irreversible entropy associated with quantum quenches at finite temperature. Specifically, we demonstrate that these quantities can be expressed as functionals of thermal and out-of-equilibrium densities, which may serve as fundamental variables for understanding finite-temperature many-body processes. We, then, apply our method to the case of the inhomogeneous Hubbard model, showing that our density-functional-theory-based approach can be usefully employed to unveil the distinctive roles of interaction and external potential on the thermodynamic properties of such a system. Published by the American Physical Society 2024Understanding the thermodynamic properties of many-body quantum systems and their emergence from microscopic laws is a topic of great significance due to its profound fundamental implications and extensive practical applications. Recent advances in experimental techniques for controlling and preparing these systems have increased interest in this area, as they have the potential to drive the development of quantum technologies. In this study, we present a density-functional-theory approach to extract detailed information about the statistics of work and the irreversible entropy associated with quantum quenches at finite temperature. Specifically, we demonstrate that these quantities can be expressed as functionals of thermal and out-of-equilibrium densities, which may serve as fundamental variables for understanding finite-temperature many-body processes. We, then, apply our method to the case of the inhomogeneous Hubbard model, showing that our density-functional-theory-based approach can be usefully employed to unveil the distinctive roles of interaction and external potential on the thermodynamic properties of such a system. Published by the American Physical Society 2024

arXiv:2409.02559Physical Review ADec 2, 20244 citations

Many body theory for finite nuclei (and other Fermi systems)

H. Kuemmel, K.H. Lührmann, John G. Zabolitzky +2 more

Jan 1, 19750 citations

Three-body properties in nuclear matter at thermal equilibrium

M. Beyer, W. Schadow, C. Kuhrts +1 more

We derive three-body equations valid at finite densities and temperatures. The equations are based on the cluster mean field approach consistently including proper self-energy corrections and Pauli blocking. As an application we investigate the binding energies of triton and determine the Mott densities and momenta relevant for a many particle description of nuclear matter in a generalized Beth-Uhlenbeck approach. The method, however, is not restricted to nuclear physics problems but may also be relevant, e.g., to treat three-particle correlations in weakly doped semiconductors or strongly coupled dense plasmas.We derive three-body equations valid at finite densities and temperatures. The equations are based on the cluster mean field approach consistently including proper self-energy corrections and Pauli blocking. As an application we investigate the binding energies of triton and determine the Mott densities and momenta relevant for a many particle description of nuclear matter in a generalized Beth-Uhlenbeck approach. The method, however, is not restricted to nuclear physics problems but may also be relevant, e.g., to treat three-particle correlations in weakly doped semiconductors or strongly coupled dense plasmas.

arXiv:nucl-th/9902074Physical Review CJul 29, 199925 citations

Finite-temperature many-body theory with the Lipkin model

S. Y. Tsay Tzeng, P.J. Ellis, T.T.S. Kuo +1 more

arXiv:nucl-th/9308001Nuclear Physics ANov 1, 199413 citations

Many-Body Methods at Finite Temperature

Abstract

Related papers

Many-Body Methods at Finite Temperature

Abstract

Related papers