Related papers: Dissipative quasi-particle picture for quadratic Markovian open quantum systems

Dissipative quasi-particle picture for quadratic Markovian open quantum systems

URL: http://arxiv.org/abs/2106.11997v2
Date: Fri, 23 Dec 2022 17:00:16 GMT
Title: Dissipative quasi-particle picture for quadratic Markovian open quantum systems
Authors: Federico Carollo and Vincenzo Alba
Abstract summary: Correlations between different regions of a quantum many-body system can be quantified. For closed systems, analytical and numerical tools can accurately capture the time-evolution of subsystem entropies. Here, we make progress by formulating a dissipative quasi-particle picture for a general class of noninteracting open quantum systems.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Correlations between different regions of a quantum many-body system can be quantified through measures based on entropies of (reduced) subsystem states. For closed systems, several analytical and numerical tools, e.g., hydrodynamic theories or tensor networks, can accurately capture the time-evolution of subsystem entropies, thus allowing for a profound understanding of the unitary dynamics of quantum correlations. However, so far, these methods either cannot be applied to open quantum systems or do not permit an efficient computation of quantum entropies for mixed states. Here, we make progress in solving this issue by formulating a dissipative quasi-particle picture -- describing the dynamics of quantum entropies in the hydrodynamic limit -- for a general class of noninteracting open quantum systems. Our results show that also in dissipative many-body systems, correlations are generically established through the propagation of quasi-particles.

Related papers

Observation of universal dissipative dynamics in strongly correlated quantum gas [7.693218037362169]
We observe a universal dissipative dynamics in strongly correlated one-dimensional quantum gases. This method could have broad applications in detecting strongly correlated features, including spin-charge separations and Fermi arcs in quantum materials.
arXiv Detail & Related papers (2023-09-19T02:32:02Z)
Quantum nonreciprocal interactions via dissipative gauge symmetry [18.218574433422535]
One-way nonreciprocal interactions between two quantum systems are typically described by a cascaded quantum master equation. We present a new approach for obtaining nonreciprocal quantum interactions that is completely distinct from cascaded quantum systems.
arXiv Detail & Related papers (2022-03-17T15:34:40Z)
Decimation technique for open quantum systems: a case study with driven-dissipative bosonic chains [62.997667081978825]
Unavoidable coupling of quantum systems to external degrees of freedom leads to dissipative (non-unitary) dynamics. We introduce a method to deal with these systems based on the calculation of (dissipative) lattice Green's function. We illustrate the power of this method with several examples of driven-dissipative bosonic chains of increasing complexity.
arXiv Detail & Related papers (2022-02-15T19:00:09Z)
Entanglement propagation and dynamics in non-additive quantum systems [0.0]
Long-range interacting quantum systems are promising candidates for quantum technological applications. We describe the dynamics of the entanglement entropy in many diverging-body quantum systems. Quantitative predictions on the shape and timescales of entanglement propagation are made.
arXiv Detail & Related papers (2021-12-21T19:07:17Z)
Efficient criteria of quantumness for a large system of qubits [58.720142291102135]
We discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution.
arXiv Detail & Related papers (2021-08-30T23:50:05Z)
From geometry to coherent dissipative dynamics in quantum mechanics [68.8204255655161]
We work out the case of finite-level systems, for which it is shown by means of the corresponding contact master equation. We describe quantum decays in a 2-level system as coherent and continuous processes.
arXiv Detail & Related papers (2021-07-29T18:27:38Z)
Sensing quantum chaos through the non-unitary geometric phase [62.997667081978825]
We propose a decoherent mechanism for sensing quantum chaos. The chaotic nature of a many-body quantum system is sensed by studying the implications that the system produces in the long-time dynamics of a probe coupled to it.
arXiv Detail & Related papers (2021-04-13T17:24:08Z)
Information Scrambling in Computationally Complex Quantum Circuits [56.22772134614514]
We experimentally investigate the dynamics of quantum scrambling on a 53-qubit quantum processor. We show that while operator spreading is captured by an efficient classical model, operator entanglement requires exponentially scaled computational resources to simulate.
arXiv Detail & Related papers (2021-01-21T22:18:49Z)
Few-particle scattering from localized quantum systems in spatially structured bosonic baths [0.43012765978447565]
Understanding dynamics of localized quantum systems embedded in bosonic environments is a central problem in quantum optics and open quantum system theory. We present a formalism for studying few-particle scattering from a localized quantum system interacting with an bosonic bath described by an inhomogeneous wave-equation.
arXiv Detail & Related papers (2020-09-15T04:39:24Z)
Quantum Non-equilibrium Many-Body Spin-Photon Systems [91.3755431537592]
dissertation concerns the quantum dynamics of strongly-correlated quantum systems in out-of-equilibrium states. Our main results can be summarized in three parts: Signature of Critical Dynamics, Driven Dicke Model as a Test-bed of Ultra-Strong Coupling, and Beyond the Kibble-Zurek Mechanism.
arXiv Detail & Related papers (2020-07-23T19:05:56Z)

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