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We study holographic entanglement entropy and revisit thermodynamics and confinement in the dilaton-gravity system. Our analysis focuses on a solvable class of backgrounds that includes AdS and linear dilaton spacetimes as particular cases,…

高能物理 - 理论 · 物理学 2025-04-15 Sergio Barbosa , Sylvain Fichet , Eugenio Megias , Mariano Quiros

We investigate the dynamics of entanglement between the system and the environment during thermalization of a noninteracting fermionic impurity coupled to a fermionic thermal bath. We show that transient entanglement can be observed even in…

量子物理 · 物理学 2023-11-03 Krzysztof Ptaszynski , Massimiliano Esposito

The characterization of ensembles of many-qubit random states and their realization via quantum circuits are crucial tasks in quantum-information theory. In this work, we study the ensembles generated by quantum circuits that randomly…

统计力学 · 物理学 2026-03-18 Dávid Szász-Schagrin , Michele Mazzoni , Bruno Bertini , Katja Klobas , Lorenzo Piroli

Probing the thermodynamic properties of the Hawking-Page phase transition of asymptotically-flat black holes in R\'enyi statistics. We reveal the evidence for the persisting of the dual universal formula associated with the Hawking-Page…

高能物理 - 理论 · 物理学 2022-09-22 Faical Barzi , Hasan El Moumni

In local quantum circuits with charge conservation, we initialize the system in random product states and study the dynamics of the Renyi entanglement entropy $R_\alpha$. We rigorously prove that $R_\alpha$ with Renyi index $\alpha>1$ at…

量子物理 · 物理学 2020-12-21 Yichen Huang

The Bardeen and Hayward spacetimes are here considered as standard configurations of spherically symmetric regular black holes. Assuming the thermodynamics of such objects to be analogous to standard black holes, we compute the island…

广义相对论与量子宇宙学 · 物理学 2024-05-20 Orlando Luongo , Stefano Mancini , Paolo Pierosara

In closed quantum many-body systems, initially localized information spreads throughout the system and becomes highly complex. This phenomenon, known as information scrambling, is closely related to entropy growth and quantum…

量子物理 · 物理学 2025-02-12 Yuke Zhang , Zeyu Liu , Shuo Zhang , Langxuan Chen , Pengfei Zhang

Utilizing the holographic technique, we investigate how the entanglement entropy evolves along the RG flow. After introducing a new generalized temperature which satisfies the thermodynamics-like law even in the IR regime, we find that the…

高能物理 - 理论 · 物理学 2017-05-31 Ki-Seok Kim , Chanyong Park

We simulate quench dynamics of the Su-Schrieffer-Heeger (SSH) chain on the IBM quantum computers, calculating the R\'enyi entanglement entropy, the twist order parameter and the Berry phase. The latter two quantities can be deduced from a…

量子物理 · 物理学 2025-01-14 Huai-Chun Chang , Hsiu-Chuan Hsu , Yu-Cheng Lin

We calculate the time evolution of entanglement entropy in two dimensional conformal field theory with a moving mirror. For a setup modeling Hawking radiation, we obtain a linear growth of entanglement entropy and show that this can be…

高能物理 - 理论 · 物理学 2021-02-17 Ibrahim Akal , Yuya Kusuki , Noburo Shiba , Tadashi Takayanagi , Zixia Wei

We study the entanglement dynamics and relaxation properties of a system of two interacting qubits in the two cases (I) two independent bosonic baths and (II) one common bath, at temperature T. The entanglement dynamics is studied in terms…

量子物理 · 物理学 2017-05-10 G. Campagnano , A. Hamma , U. Weiss

The focus is on understanding the quantum thermodynamics of strongly coupled non-Markovian quantum systems. To this end, a non-trivial, non-Markovian model of a central spin surrounded by a spin bath is taken up, and its exact evolution is…

量子物理 · 物理学 2025-08-28 Devvrat Tiwari , Baibhab Bose , Subhashish Banerjee

In this work, we study the time evolution of the entanglement hamiltonian during the process of thermalization in a (1+1)-dimensional conformal field theory (CFT) after a quantum quench from a special class of initial states. In particular,…

强关联电子 · 物理学 2018-12-05 Xueda Wen , Shinsei Ryu , Andreas W. W. Ludwig

We study the dynamics of the entanglement spectrum, that is the time evolution of the eigenvalues of the reduced density matrices after a bipartition of a one-dimensional spin chain. Starting from the ground state of an initial Hamiltonian,…

统计力学 · 物理学 2014-06-26 G. Torlai , L. Tagliacozzo , G. De Chiara

We will explore the dynamical property of non-equilibrium phenomena induced by two-dimensional holographic conformal field theory (2d holographic CFT) Hamiltonian on the curved spacetime by studying the time dependence of the entanglement…

高能物理 - 理论 · 物理学 2024-12-31 Chen Bai , Akihiro Miyata , Masahiro Nozaki

We study the R\'enyi entropies in the spin-$1/2$ anisotropic Heisenberg chain after a quantum quench starting from the N\'eel state. The quench action method allows us to obtain the stationary R\'enyi entropies for arbitrary values of the…

统计力学 · 物理学 2018-11-13 Vincenzo Alba , Pasquale Calabrese

Strong-coupling statistical thermodynamics is formulated as Hamiltonian dynamics of an observed system interacting with another unobserved system (a bath). It is shown that the entropy production functional of stochastic thermodynamics,…

统计力学 · 物理学 2018-04-18 Erik Aurell

Atmospheric systems incorporating thermal dynamics must be stable with respect to both energy and entropy. While energy conservation can be enforced via the preservation of the skew-symmetric structure of the Hamiltonian form of the…

数值分析 · 数学 2023-10-31 Kieran Ricardo , David Lee , Kenneth Duru

We define the entropy S and uncertainty function of a squeezed system interacting with a thermal bath, and study how they change in time by following the evolution of the reduced density matrix in the influence functional formalism. As…

量子物理 · 物理学 2014-11-18 D. Koks , A. Matacz , B. L. Hu

We consider the buildup and decay of two-spin entanglement through phase interactions in a finite environment of surrounding spins, as realized in quantum computing platforms based on arrays of atoms, molecules, or nitrogen vacancy centers.…

量子物理 · 物理学 2023-08-22 Mei Yu , Otfried Gühne , Stefan Nimmrichter