Results 11 to 20 of about 718,181 (329)
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
Quantum Zeno Effect in Open Quantum Systems [PDF]
Annales Henri Poincaré, 2021 AbstractWe prove the quantum Zeno effect in open quantum systems whose evolution, governed by quantum dynamical semigroups, is repeatedly and frequently interrupted by the action of a quantum operation. For the case of a quantum dynamical semigroup with a bounded generator, our analysis leads to a refinement of existing results and extends them to a ...
Becker, Simon +2 more
openaire +2 more sources
Assisted quantum simulation of open quantum systems [PDF]
iScience, 2023 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 makes the UQA implausible in the current era. With only the noisy intermediate-scale quantum (NISQ) devices in hand, we introduce the quantum-assisted quantum ...
Jin‐Min Liang +3 more
openalex +5 more sources
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
openaire +2 more sources
, 2023 In this Bachelor thesis project, the Lindblad master equation is derived, both as the most general way of modeling interaction with an environment that lacks memory, and through microscopic derivations focused on assumptions about the way the system interacts with its environment (weak-coupling, Born-Markov and rotating wave approximations). It is then
Bahns, Dorothea +2 more
+7 more sources
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.
openaire +3 more sources
From Open Quantum Systems to Open Quantum Maps [PDF]
Communications in Mathematical Physics, 2011 53 pages, 8 ...
Nonnenmacher, Stéphane +2 more
openaire +2 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, implicit in a master equation, and needs to be included to preserve current continuity.
Gebauer, Ralph, Car, Roberto
openaire +3 more sources
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
openaire +3 more sources
Tunable Non-Markovianity for Bosonic Quantum Memristors
Entropy, 2023 We studied the tunable control of the non-Markovianity of a bosonic mode due to its coupling to a set of auxiliary qubits, both embedded in a thermal reservoir. Specifically, we considered a single cavity mode coupled to auxiliary qubits described by the
Jia-Liang Tang +3 more
doaj +1 more source