Dissipative phase transition in a spatially-correlated bosonic bath
- URL: http://arxiv.org/abs/2104.08891v1
- Date: Sun, 18 Apr 2021 16:21:55 GMT
- Title: Dissipative phase transition in a spatially-correlated bosonic bath
- Authors: Saptarshi Saha and Rangeet Bhattacharyya
- Abstract summary: We show that atoms in a spatially-correlated thermal bath can show both the behavior depending on the temperature.
In this condition, a set of weak symmetries exist, which prevent thermalization.
The system undergoes a symmetry-broken dissipative phase transition of the first order as the temperature rises above zero.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The presence of symmetries in a closed many-body quantum system results in
integrability. For such integrable systems, complete thermalization does not
occur. As a result, the system remains non-ergodic. On the other hand, a set of
non-interacting atoms connected to a regular bosonic bath thermalizes. Here, we
show that such atoms in a spatially-correlated thermal bath can show both the
behavior depending on the temperature. At zero temperature, the bath has a
large correlation length, and hence it acts as a common environment. In this
condition, a set of weak symmetries exist, which prevent thermalization. The
system undergoes a symmetry-broken dissipative phase transition of the first
order as the temperature rises above zero.
Related papers
- Thermodynamic Roles of Quantum Environments: From Heat Baths to Work Reservoirs [49.1574468325115]
Environments in quantum thermodynamics usually take the role of heat baths.
We show that within the same model, the environment can take three different thermodynamic roles.
The exact role of the environment is determined by the strength and structure of the coupling.
arXiv Detail & Related papers (2024-08-01T15:39:06Z) - Single and entangled atomic systems in thermal bath and the Fulling-Davies-Unruh effect [0.10713888959520207]
We revisit the Fulling-Davies-Unruh effect in the context of two-level single and entangled atomic systems that are static in a thermal bath.
arXiv Detail & Related papers (2024-01-25T14:19:28Z) - Microscopic contributions to the entropy production at all times: From
nonequilibrium steady states to global thermalization [0.0]
We numerically study microscopic contributions to the entropy production for the single electron transistor.
We find that the entropy production is dominated for most times by microscopic deviations from thermality in the baths.
arXiv Detail & Related papers (2023-09-21T06:30:20Z) - Entanglement phase transition due to reciprocity breaking without
measurement or post-selection [59.63862802533879]
EPT occurs for a system undergoing purely unitary evolution.
We analytically derive the entanglement entropy out of and at the critical point for the $l=1$ and $l/N ll 1$ case.
arXiv Detail & Related papers (2023-08-28T14:28:59Z) - Phase transitions and thermodynamic cycles in the broken PT-regime [0.0]
We propose a new type of quantum thermodynamic cycle whose efficiency is greater than the one of the classical Carnot cycle.
In our model this type of cycle only exists in the low temperature regime in the spontaneously broken parity-time-reversal (PT) symmetry regime of a non-Hermitian quantum theory.
arXiv Detail & Related papers (2023-08-11T15:04:59Z) - Non-Abelian eigenstate thermalization hypothesis [58.720142291102135]
The eigenstate thermalization hypothesis (ETH) explains why chaotic quantum many-body systems thermalize internally if the Hamiltonian lacks symmetries.
We adapt the ETH to noncommuting charges by positing a non-Abelian ETH and invoking the approximate microcanonical subspace introduced in quantum thermodynamics.
arXiv Detail & Related papers (2022-06-10T18:14:18Z) - Temperature uncertainty relation in non-equilibrium thermodynamics [9.350381958573443]
We derive a universal temperature uncertainty relation for general non-equilibrium processes.
We find that it is the fluctuation of heat, which is defined as the change in bath energy, determines the temperature uncertainty in non-equilibrium case.
arXiv Detail & Related papers (2022-04-21T11:59:30Z) - Floquet-heating-induced Bose condensation in a scar-like mode of an open
driven optical-lattice system [62.997667081978825]
We show that the interplay of bath-induced dissipation and controlled Floquet heating can give rise to non-equilibrium Bose condensation.
Our predictions are based on a microscopic model that is solved using kinetic equations of motion derived from Floquet-Born-Markov theory.
arXiv Detail & Related papers (2022-04-14T17:56:03Z) - Quantum collisional thermostats [0.0]
Collisional reservoirs are a major tool for modelling open quantum systems.
We present a formal solution of the problem in one dimension and for flat interaction potentials.
We then introduce two approximations of the scattering map that preserve these symmetries and, consequently, thermalize the system.
arXiv Detail & Related papers (2021-09-22T09:46:25Z) - Taking the temperature of a pure quantum state [55.41644538483948]
Temperature is a deceptively simple concept that still raises deep questions at the forefront of quantum physics research.
We propose a scheme to measure the temperature of such pure states through quantum interference.
arXiv Detail & Related papers (2021-03-30T18:18:37Z) - Out-of-equilibrium quantum thermodynamics in the Bloch sphere:
temperature and internal entropy production [68.8204255655161]
An explicit expression for the temperature of an open two-level quantum system is obtained.
This temperature coincides with the environment temperature if the system reaches thermal equilibrium with a heat reservoir.
We show that within this theoretical framework the total entropy production can be partitioned into two contributions.
arXiv Detail & Related papers (2020-04-09T23:06:43Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.