Related papers: Timelike entanglement entropy Revisited

Related papers

Emptiness Instanton in Quantum Polytropic Gas [49.1574468325115]
The problem involves determining the probability of the spontaneous formation of an empty interval in the ground state of the gas.<n>By solving the hydrodynamic equations in imaginary time, we derive the analytic form of the emptiness instanton.<n>This solution is expressed as an integral representation analogous to those used for correlation functions in Conformal Field Theory.
arXiv Detail & Related papers (2024-12-16T11:58:51Z)
Imaginary part of timelike entanglement entropy [3.0803998326137343]
In the context of field theory, it is more appropriate to obtain the timelike entanglement entropy through the Wick rotation of the twist operators. It is found that, in certain special cases, the imaginary part of the timelike entanglement entropy is related to the commutator of the twist operator and its first-order temporal derivative. Our analysis shows that for the strip geometry, the imaginary part of the timelike entanglement entropy is solely related to the commutators of the twist operator and its first-order temporal derivative.
arXiv Detail & Related papers (2024-10-30T04:39:37Z)
Relation between timelike and spacelike entanglement entropy [7.694970944345054]
We establish a connection between timelike and spacelike entanglement entropy. For a diverse range of states, the timelike entanglement entropy is uniquely determined by a linear combination of the spacelike entanglement entropy and its first-order temporal derivative.
arXiv Detail & Related papers (2024-02-01T01:40:03Z)
Testing the Quantum of Entropy [0.0]
It is clarified when it is possible to speak about a quantum of entropy, given by the Boltzmann constant k, and about a lower entropy limit $S geq k ln 2$.
arXiv Detail & Related papers (2023-07-19T11:34:54Z)
Entanglement entropy in conformal quantum mechanics [68.8204255655161]
We consider sets of states in conformal quantum mechanics associated to generators of time evolution whose orbits cover different regions of the time domain. States labelled by a continuous global time variable define the two-point correlation functions of the theory seen as a one-dimensional conformal field theory.
arXiv Detail & Related papers (2023-06-21T14:21:23Z)
Pseudo Entropy in dS/CFT and Time-like Entanglement Entropy [0.880802134366532]
We study holographic entanglement entropy in dS/CFT and introduce time-like entanglement entropy in CFTs. Both of them take complex values in general and are related with each other via an analytical continuation. We find that the imaginary part of pseudo entropy implies an emergence of time in dS/CFT.
arXiv Detail & Related papers (2022-10-17T22:12:19Z)
R\'{e}nyi entanglement entropy after a quantum quench starting from insulating states in a free boson system [0.0]
We investigate the time-dependent R'enyi entanglement entropy after a quantum quench. We calculate the time evolution of the R'enyi entanglement entropy in unprecedentedly large systems. We discuss possible applications of our findings to the real-time dynamics of noninteracting bosonic systems.
arXiv Detail & Related papers (2022-07-18T02:36:14Z)
Gauge Quantum Thermodynamics of Time-local non-Markovian Evolutions [77.34726150561087]
We deal with a generic time-local non-Markovian master equation. We define current and power to be process-dependent as in classical thermodynamics. Applying the theory to quantum thermal engines, we show that gauge transformations can change the machine efficiency.
arXiv Detail & Related papers (2022-04-06T17:59:15Z)
Fast Thermalization from the Eigenstate Thermalization Hypothesis [69.68937033275746]
Eigenstate Thermalization Hypothesis (ETH) has played a major role in understanding thermodynamic phenomena in closed quantum systems. This paper establishes a rigorous link between ETH and fast thermalization to the global Gibbs state. Our results explain finite-time thermalization in chaotic open quantum systems.
arXiv Detail & Related papers (2021-12-14T18:48:31Z)
Open-system approach to nonequilibrium quantum thermodynamics at arbitrary coupling [77.34726150561087]
We develop a general theory describing the thermodynamical behavior of open quantum systems coupled to thermal baths. Our approach is based on the exact time-local quantum master equation for the reduced open system states.
arXiv Detail & Related papers (2021-09-24T11:19:22Z)
Entropy of temporal entanglement [0.0]
A recently proposed history formalism is used to define temporal entanglement in quantum systems. The entropy of temporal entanglement is explicitly calculated in two simple quantum circuits.
arXiv Detail & Related papers (2021-04-12T18:00:01Z)
Catalytic Transformations of Pure Entangled States [62.997667081978825]
Entanglement entropy is the von Neumann entropy of quantum entanglement of pure states. The relation between entanglement entropy and entanglement distillation has been known only for the setting, and the meaning of entanglement entropy in the single-copy regime has so far remained open. Our results imply that entanglement entropy quantifies the amount of entanglement available in a bipartite pure state to be used for quantum information processing, giving results an operational meaning also in entangled single-copy setup.
arXiv Detail & Related papers (2021-02-22T16:05:01Z)
Entanglement Entropy from TFD Entropy Operator [0.0]
We show that for two-dimensional conformal theories defined in a torus, a choice of moduli space allows the typical entropy operator of the TFD to provide the entanglement entropy. We also propose a model for the evolution of the entanglement entropy and show that it grows linearly with time.
arXiv Detail & Related papers (2020-07-09T13:56:17Z)
Entropy and relative entropy from information-theoretic principles [24.74754293747645]
We find that every relative entropy must lie between the R'enyi divergences of order $0$ and $infty$. Our main result is a one-to-one correspondence between entropies and relative entropies.
arXiv Detail & Related papers (2020-06-19T14:50:44Z)
Entropy production in the quantum walk [62.997667081978825]
We focus on the study of the discrete-time quantum walk on the line, from the entropy production perspective. We argue that the evolution of the coin can be modeled as an open two-level system that exchanges energy with the lattice at some effective temperature.
arXiv Detail & Related papers (2020-04-09T23:18:29Z)

This list is automatically generated from the titles and abstracts of the papers in this site.