Results 91 to 100 of about 1,675 (175)
Strong coupling spontaneous emission interference near a graphene nanodisk
NanophotonicsIn this work, we analyze the spontaneous emission dynamics of a V-type quantum emitter near a graphene nanodisk based on the combination of electromagnetic and quantum dynamical calculations.
Thanopulos Ioannis +2 more
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On the non-Markovian quantum control dynamics
In this paper, we study both open-loop control and closed-loop measurement feedback control of non-Markovian quantum dynamics arising from the interaction between a quantum system and its environment. We use the widely studied cavity quantum electrodynamics (cavity-QED) system as an example, where an atom interacts with the environment composed of a ...
Ding, Haijin +3 more
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Quantum dynamics in a tiered non-Markovian environment
New Journal of Physics, 2015 We introduce a new analytical method for studying the open quantum systems problem of a discrete system weakly coupled to an environment of harmonic oscillators. Our approach is based on a phase space representation of the density matrix for a system coupled to a two-tiered environment.
Fruchtman, A. +3 more
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Non-Markovian multiphoton chiral dynamics with giant systems
Communications PhysicsChiral interactions enable directional control of quantum light, providing new routes for nonreciprocal photon dynamics. While previous studies focused on single photon regimes, this work explores the non-Markovian multiphoton regime in a giant nonlinear
Yue Chang
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Verifying quantum memory in the dynamics of spin-boson models
Physical Review ResearchWe investigate the nature of memory effects in the non-Markovian dynamics of spin-boson models. Local quantum memory criteria can be used to indicate that the reduced dynamics of an open system necessarily requires a quantum memory in its environment. We
Charlotte Bäcker +2 more
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Exact solution for the collective non-Markovian decay of two fully excited quantum emitters
Physical Review ResearchWaveguide quantum electrodynamics constitutes a modern paradigm for the interaction of light and matter, in which strong coupling, bath structure, and propagation delays can break the radiative conditions that quantum emitters typically encounter in free
Alfonso Lanuza, Dominik Schneble
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Variational quantum algorithm for non-Markovian quantum dynamics
The simulation of non-Markovian quantum dynamics plays an important role in the understanding of charge and exciton dynamics in the condensed phase environment, and yet it remains computationally expensive on classical computers. We have developed a variational quantum algorithm that is capable of simulating non-Markovian quantum dynamics.
Walters, Peter L. +2 more
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Extracting dynamical maps of non-Markovian open quantum systems
The Journal of Chemical PhysicsThe most general description of quantum evolution up to a time τ is a completely positive tracing preserving map known as a dynamical mapΛ̂(τ). Here, we consider Λ̂(τ) arising from suddenly coupling a system to one or more thermal baths with a strength that is neither weak nor strong. Given no clear separation of characteristic system/bath time scales,
David J. Strachan +2 more
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Characterizing Non-Markovian Dynamics of Open Quantum Systems
CoRRCharacterizing non-Markovian quantum dynamics is essential for accurately modeling open quantum systems, particularly in near-term quantum technologies. In this work, we develop a structure-preserving approach to characterizing non-Markovian evolution using the time-convolutionless (TCL) master equation, considering both linear and nonlinear ...
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