Results 21 to 30 of about 80,457 (267)

Microscopic and macroscopic effects in the decoherence of neutrino oscillations

open access: yesJournal of High Energy Physics, 2022
We present a generic structure (the layer structure) for decoherence effects in neutrino oscillations, which includes decoherence from quantum mechanical and classical uncertainties. The calculation is done by combining the concept of open quantum system
Ting Cheng   +2 more
doaj   +1 more source

Environmental decoherence versus intrinsic decoherence [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
We review the difference between standard environmental decoherence and ‘intrinsic decoherence’, which is taken to be an ineluctable process of Nature. Environmental decoherence is typically modelled by spin bath or oscillator modes—we review some of the unanswered questions not captured by these models, and also the application of them to experiments.
openaire   +3 more sources

Experimental study of decoherence of the two-mode squeezed vacuum state via second harmonic generation

open access: yesPhysical Review Research, 2021
Decoherence remains one of the most serious challenges to the implementation of quantum technology. It appears as a result of the transformation over time of a quantum superposition state into a classical mixture due to the quantum system interacting ...
Fu Li, Tian Li, Girish S. Agarwal
doaj   +1 more source

Dephasing Dynamics in a Non-Equilibrium Fluctuating Environment

open access: yesEntropy, 2023
We performed a theoretical study of the dephasing dynamics of a quantum two-state system under the influences of a non-equilibrium fluctuating environment. The effect of the environmental non-equilibrium fluctuations on the quantum system is described by
Xiangjia Meng   +5 more
doaj   +1 more source

Universality of Decoherence [PDF]

open access: greenPhysical Review Letters, 2001
Physical Review ...
Daniel Braun   +2 more
openalex   +6 more sources

Decoherence of Flux Qubits Coupled to Electronic Circuits [PDF]

open access: yes, 2003
On the way to solid-state quantum computing, overcoming decoherence is the central issue. In this contribution, we discuss the modeling of decoherence of a superonducting flux qubit coupled to dissipative electronic circuitry.
C. H. Van Der Wal   +5 more
core   +2 more sources

Stability of the Discrete Time-Crystalline Order in Spin-Optomechanical and Open Cavity QED Systems

open access: yesPhotonics, 2022
Discrete time crystals (DTC) have been demonstrated experimentally in several different quantum systems in the past few years. Spin couplings and cavity losses have been shown to play crucial roles for realizing DTC order in open many-body systems out of
Zhengda Hu, Xingyu Gao, Tongcang Li
doaj   +1 more source

Experimental test of decoherence theory using electron matter waves

open access: yesNew Journal of Physics, 2018
A controlled decoherence environment is studied experimentally by free electron interaction with semiconducting and metallic plates. The results are compared with physical models based on decoherence theory to investigate the quantum-classical transition.
Peter J Beierle   +2 more
doaj   +1 more source

Where neutrino decoherence lies

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Recently, several studies of neutrino oscillations in the vacuum have not found the decoherence long expected from the separation of wave packets of neutrinos in different mass eigenstates.
Emilio Ciuffoli, Jarah Evslin
doaj   +1 more source

Quantum State Tomography in Nonequilibrium Environments

open access: yesPhotonics, 2023
We generalize an approach to studying the quantum state tomography (QST) of open systems in terms of the dynamical map in Kraus representation within the framework of dynamic generation of informationally complete positive operator-valued measures.
Haonan Chen   +6 more
doaj   +1 more source

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