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Dissipation as a resource for Quantum Reservoir Computing [PDF]

open access: goldQuantum, 2022
Dissipation induced by interactions with an external environment typically hinders the performance of quantum computation, but in some cases can be turned out as a useful resource.
Antonio Sannia   +4 more
doaj   +4 more sources

Quantum Coding Transitions in the Presence of Boundary Dissipation [PDF]

open access: yesPRX Quantum, 2023
We investigate phase transitions in the encoding of quantum information in a quantum many-body system due to the competing effects of unitary scrambling and boundary dissipation. Specifically, we study the fate of quantum information in a one-dimensional
Izabella Lovas   +2 more
doaj   +2 more sources

Quantum dissipation in a scalar field theory with gapped momentum states. [PDF]

open access: yesSci Rep, 2019
Understanding quantum dissipation is important from both theoretical perspective and applications. Here, we show how to describe dissipation in a scalar field theory.
Trachenko K.
europepmc   +3 more sources

From Non-Hermitian Linear Response to Dynamical Correlations and Fluctuation-Dissipation Relations in Quantum Many-Body Systems [PDF]

open access: goldPRX Quantum, 2022
Quantum many-body systems are characterized by their correlations. While equal-time correlators and unequal-time commutators between operators are standard observables, the direct access to unequal-time anti-commutators poses a formidable experimental ...
Kevin T. Geier, Philipp Hauke
openalex   +3 more sources

Quantum bounds and fluctuation-dissipation relations [PDF]

open access: yesSciPost Physics, 2022
In recent years, there has been intense attention on the constraints posed by quantum mechanics on the dynamics of the correlation at low temperatures, triggered by the postulation and derivation of quantum bounds on the transport coefficients or on ...
Silvia Pappalardi, Laura Foini, Jorge Kurchan
doaj   +2 more sources

Dissipation-induced enhancement of quantum fluctuations [PDF]

open access: goldNew Journal of Physics, 2016
We study a quantum harmonic oscillator linearly coupled through the position operator $\hat{q}$ to a first bath and through the momentum operator $\hat{p}$ to a second bath yielding an Ohmic–Drude dissipation.
Gianluca Rastelli
doaj   +2 more sources

The effects of nonextensivity on quantum dissipation. [PDF]

open access: yesSci Rep, 2014
Nonextensive dynamics for a quantum dissipative system described by a Caldirola-Kanai (CK) Hamiltonian is investigated in SU(1,1) coherent states.
Choi JR.
europepmc   +2 more sources

Floquet control of quantum dissipation in spin chains [PDF]

open access: green, 2015
Controlling the decoherence induced by the interaction of quantum system with its environment is a fundamental challenge in quantum technology. Utilizing Floquet theory, we explore the constructive role of temporal periodic driving in suppressing ...
Chong Chen   +4 more
openalex   +3 more sources

Motion of a superfluid vortex according to holographic quantum dissipation [PDF]

open access: yesPhysical review B, 2022
Vortices are topological defects associated with superfluids and superconductors, which, when mobile, dissipate energy destroying the dissipation-less nature of the superfluid.
Wei-Can Yang   +4 more
semanticscholar   +1 more source

Learning quantum dissipation by the neural ordinary differential equation [PDF]

open access: yesPhysical Review A, 2022
Quantum dissipation arises from the unavoidable coupling between a quantum system and its surrounding environment, which is known as a major obstacle in the quantum processing of information.
Li Chen, Yadong Wu
semanticscholar   +1 more source

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