Results 1 to 10 of about 1,751,283 (369)
Assisted quantum simulation of open quantum systems [PDF]
iScience, 2023 Summary: Universal quantum algorithms (UQA) implemented on fault-tolerant quantum computers are expected to achieve an exponential speedup over classical counterparts. However, the deep quantum circuits make the UQA implausible in the current era.
Jin-Min Liang +3 more
doaj +7 more sources
Stabilizer codes for open quantum systems [PDF]
Scientific Reports, 2023 The Lindblad master equation describes the evolution of a large variety of open quantum systems. An important property of some open quantum systems is the existence of decoherence-free subspaces.
Francisco Revson F. Pereira +2 more
doaj +6 more sources
Equilibrium States in Open Quantum Systems [PDF]
Entropy, 2018 The aim of this paper is to study the question of whether or not equilibrium states exist in open quantum systems that are embedded in at least two environments and are described by a non-Hermitian Hamilton operator H .
Ingrid Rotter
doaj +6 more sources
From open quantum systems to open quantum maps [PDF]
Communications in Mathematical Physics, 2010 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 ...
Nonnenmacher, Stéphane +2 more
core +10 more sources
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,
A. D. McLachlan +10 more
core +3 more sources
Open quantum systems are harder to track than open classical systems [PDF]
Quantum, 2019 For a Markovian (in the strongest sense) open quantum system it is possible, by continuously monitoring the environment, to perfectly track the system; that is, to know the stochastically evolving pure state of the system without altering the master ...
Prahlad Warszawski, Howard M. Wiseman
doaj +3 more sources
Scarring in open quantum systems [PDF]
Physical Review E, 2007 We study scarring phenomena in open quantum systems. We show numerical evidence that individual resonance eigenstates of an open quantum system present localization around unstable short periodic orbits in a similar way as their closed counterparts.
Diego Wisniacki +2 more
core +5 more sources
PsiQuaSP-A library for efficient computation of symmetric open quantum systems. [PDF]
Sci Rep, 2017 In a recent publication we showed that permutation symmetry reduces the numerical complexity of Lindblad quantum master equations for identical multi-level systems from exponential to polynomial scaling.
Gegg M, Richter M.
europepmc +3 more sources
Completely Mixing Quantum Open Systems and Quantum Fractals [PDF]
Physica D: Nonlinear Phenomena, 1999 Departing from classical concepts of ergodic theory, formulated in terms of probability densities, measures describing the chaotic behavior and the loss of information in quantum open systems are proposed.
A. Jadczyk +26 more
core +8 more sources
Thermodynamic length in open quantum systems [PDF]
Quantum, 2019 The dissipation generated during a quasistatic thermodynamic process can be characterised by introducing a metric on the space of Gibbs states, in such a way that minimally-dissipating protocols correspond to geodesic trajectories.
Matteo Scandi, Martí Perarnau-Llobet
doaj +5 more sources