Results 21 to 30 of about 718,181 (329)

Dissipation-induced Liouville-Majorana modes in open quantum system

open access: yesPhysical Review Research, 2023
In open quantum systems, topological edge states rapidly lose coherence, making them unsuitable for topological quantum computation and quantum memory.
Xing-Shuo Xu   +3 more
doaj   +1 more source

Quantum error correction under numerically exact open-quantum-system dynamics

open access: yesPhysical Review Research, 2023
The known quantum error-correcting codes are typically built on approximative open-quantum-system models such as Born-Markov master equations. However, it is an open question how such codes perform in actual physical systems that, to some extent ...
Aravind P. Babu   +5 more
doaj   +1 more source

Two-Unitary Decomposition Algorithm and Open Quantum System Simulation [PDF]

open access: yesQuantum, 2023
Simulating general quantum processes that describe realistic interactions of quantum systems following a non-unitary evolution is challenging for conventional quantum computers that directly implement unitary gates.
Nishchay Suri   +5 more
doaj   +1 more source

Phase transitions in the classical simulability of open quantum systems

open access: yesScientific Reports, 2023
We introduce a Langevin unravelling of the density matrix evolution of an open quantum system over matrix product states, which we term the time-dependent variational principle-Langevin equation.
F. Azad   +3 more
doaj   +1 more source

Hypothesis Testing with Open Quantum Systems [PDF]

open access: greenPhysical Review Letters, 2015
Using a quantum circuit model we derive the maximal ability to distinguish which of several candidate Hamiltonians describe an open quantum system. This theory, in particular, provides the maximum information retrievable from continuous quantum measurement records, available when a quantum system is perturbatively coupled to a broadband quantized ...
Klaus Mølmer
openalex   +6 more sources

Commutation simulator for open quantum dynamics

open access: yesNew Journal of Physics, 2023
Recent progress in quantum simulation and algorithms has demonstrated a rapid expansion in capabilities. The search continues for new techniques and applications to exploit quantum advantage.
Jaewoo Joo, Timothy P Spiller
doaj   +1 more source

Quantum trajectories and open many-body quantum systems [PDF]

open access: yes, 2014
The study of open quantum systems has become increasingly important in the past years, as the ability to control quantum coherence on a single particle level has been developed in a wide variety of physical systems.
Daley, Andrew J.
core   +2 more sources

Experimental test of exchange fluctuation relations in an open quantum system

open access: yesPhysical Review Research, 2020
Elucidating the energy transfer between a quantum system and a reservoir is a central issue in quantum nonequilibrium thermodynamics, which could provide novel tools to engineer quantum-enhanced heat engines.
S. Hernández-Gómez   +6 more
doaj   +1 more source

Adaptive variational simulation for open quantum systems [PDF]

open access: yesQuantum
Emerging quantum hardware provides new possibilities for quantum simulation. While much of the research has focused on simulating closed quantum systems, the real-world quantum systems are mostly open.
Huo Chen   +3 more
doaj   +1 more source

Unification of witnessing initial system-environment correlations and witnessing non-Markovianity [PDF]

open access: yes, 2012
We show the connection between a witness that detects dynamical maps with initial system-environment correlations and a witness that detects non-Markovian open quantum systems.
Aspuru-Guzik, Alán   +3 more
core   +1 more source

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