Results 21 to 30 of about 1,387,123 (340)
Current fluctuations in open quantum systems: Bridging the gap between quantum continuous measurements and full counting statistics [PDF]
, 2023 Continuously measured quantum systems are characterized by an output current, in the form of a stochastic and correlated time series which conveys crucial information about the underlying quantum system.
G. Landi +3 more
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International Journal of Modern Physics E, 1994 The damping of the harmonic oscillator is studied in the framework of the Lindblad theory for open quantum systems. A generalization of the fundamental constraints on quantum mechanical diffusion coefficients which appear in the master equation for the damped quantum oscillator is presented; the Schrödinger, Heisenberg and Weyl-Wigner-Moyal ...
Isar, A. +4 more
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Lieb-Schultz-Mattis Theorem in Open Quantum Systems. [PDF]
Physical Review Letters, 2023 The Lieb-Schultz-Mattis (LSM) theorem provides a general constraint on quantum many-body systems and plays a significant role in the Haldane gap phenomena and topological phases of matter.
K. Kawabata, R. Sohal, S. Ryu
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Dissipation-Induced Information Scrambling in a Collision Model
Entropy, 2022 In this paper, we present a collision model to stroboscopically simulate the dynamics of information in dissipative systems. In particular, an all-optical scheme is proposed to investigate the information scrambling of bosonic systems with Gaussian ...
Yan Li, Xingli Li, Jiasen Jin
doaj +1 more source
Open fermionic quantum systems [PDF]
Physical Review B, 1993 A method to treat a quantum system in interaction with a fermionic reservoir is presented. Its most important feature is that the dynamics of the exchange of particles between the system and the reservoir is explicitly included via an effective interaction term in the Hamiltonian. This feature gives rise to fluctuations in the total number of particles
Artacho, E., Falicov, L.M.
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Simulating Open Quantum Systems Using Hamiltonian Simulations [PDF]
PRX Quantum, 2023 We present a novel method to simulate the Lindblad equation, drawing on the relationship between Lindblad dynamics, stochastic differential equations, and Hamiltonian simulations. We derive a sequence of unitary dynamics in an enlarged Hilbert space that
Zhiyan Ding, Xiantao Li, Lin Lin
semanticscholar +1 more source
Current in Open Quantum Systems [PDF]
Physical Review Letters, 2004 We show that a dissipative current component is present in the dynamics generated by a Liouville-master equation, in addition to the usual component associated with Hamiltonian evolution. The dissipative component originates from coarse graining in time, implicit in a master equation, and needs to be included to preserve current continuity.
Gebauer, Ralph, Car, Roberto
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Localization in Open Quantum Systems [PDF]
Physical Review Letters, 2017 In an isolated single-particle quantum system a spatial disorder can induce Anderson localization. Being a result of interference, this phenomenon is expected to be fragile in the face of dissipation. Here we show that dissipation can drive a disordered system into a steady state with tunable localization properties.
Yusipov, I. I. +3 more
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Benefits of Open Quantum Systems for Quantum Machine Learning [PDF]
Advanced Quantum Technologies, 2023 Quantum machine learning (QML) is a discipline that holds the promise of revolutionizing data processing and problem‐solving. However, dissipation and noise arising from the coupling with the environment are commonly perceived as major obstacles to its ...
M. L. Olivera-Atencio +2 more
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From Open Quantum Systems to Open Quantum Maps [PDF]
Communications in Mathematical Physics, 2011 For a class of quantized open chaotic systems satisfying a natural dynamical assumption, we show that the study of the resolvent, and hence of scattering and resonances, can be reduced to the study of a family of open quantum maps, that is of finite dimensional operators obtained by quantizing the Poincaré map associated with the flow near the set of ...
Nonnenmacher, Stéphane +2 more
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