Decoherence in Conformal Field Theory
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2020)170
Abstract: Noise sources are ubiquitous in Nature and give rise to a description of quantum systems in terms of stochastic Hamiltonians. Decoherence dominates the noise-averaged dynamics and leads to dephasing and the decay of coherences in… read more here.
Keywords: time; decoherence conformal; decoherence; conformal field ... See more keywords
Probing neutrino quantum decoherence at reactor experiments
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2020)049
Abstract: Abstract We explore how well reactor antineutrino experiments can constrain or measure the loss of quantum coherence in neutrino oscillations. We assume that decoherence effects are encoded in the size of the neutrino wave-packet, σ.… read more here.
Keywords: probing neutrino; decoherence; neutrino quantum; neutrino ... See more keywords
Cosmological decoherence from thermal gravitons
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2020)065
Abstract: Abstract We study the effects of gravitationally-driven decoherence on tunneling processes associated with false vacuum decays, such as the Coleman-De Luccia instanton. We compute the thermal graviton-induced decoherence rate for a wave function describing a… read more here.
Keywords: thermal gravitons; physics; decoherence; decoherence thermal ... See more keywords
Weak Measurement-Based Entanglement Protection of Two-Qubit X-States from Amplitude Damping Decoherence
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-017-3290-1
Abstract: Considering X-states the density matrixes of which look like the letter X, we propose a weak measurement-based entanglement protection protocol of two-qubit X-states under local amplitude damping channels using weak measurement and reversal operation. It… read more here.
Keywords: weak measurement; amplitude damping; two qubit; qubit states ... See more keywords
Decoherence Induced by a Spin Chain: Role of Initial Prepared States
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-022-05067-0
Abstract: We study the decoherence process induced by a spin chain environment on a central spin consisting of R spins and we apply it on the dynamics of quantum correlations (QCs) of three interacting qubits. In… read more here.
Keywords: decoherence process; state; spin chain; decoherence ... See more keywords
Generation of an arbitrary four-photon polarization-entangled decoherence-free state with cross-Kerr nonlinearity
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1646-3
Abstract: We present a new scheme to provide an arbitrary four-photon polarization-entangled state, which enables the encoding of single logical qubit information into a four-qubit decoherence-free subspace robustly against collective decoherence. With the assistance of the… read more here.
Keywords: four photon; polarization; photon polarization; arbitrary four ... See more keywords
Scheme for encoding single logical qubit information into three-photon decoherence-free states assisted by quantum dots
Sign Up to like & getrecommendations! Published in 2019 at "Quantum Information Processing"
DOI: 10.1007/s11128-019-2315-5
Abstract: We propose an optical scheme to encode quantum information into three-photon decoherence-free states (single logical qubit information) and thereby acquire immunity from collective decoherence. Our scheme consists of quantum dots (QDs) within single-sided optical cavities… read more here.
Keywords: information; decoherence free; photon decoherence; decoherence ... See more keywords
Shannon entropy and decoherence of polaron in asymmetric polar semiconductor quantum wire
Sign Up to like & getrecommendations! Published in 2017 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2017.04.037
Abstract: Abstract In this paper, we investigate decoherence caused by a system of polaron in asymmetric quantum wire (AQW) using an all coupling variational method. We have derived the ground and first excited energy states, which… read more here.
Keywords: polaron asymmetric; quantum; decoherence; quantum wire ... See more keywords
Dynamics of two coupled qubits in a two-mode cavity through four-photon processes: Nonclassical properties under intrinsic decoherence
Sign Up to like & getrecommendations! Published in 2021 at "Solid State Communications"
DOI: 10.1016/j.ssc.2021.114383
Abstract: Abstract The impact of the intrinsic decoherence on the dynamics of a system composed of two coupled qubits inside a two-mode cavity with a nondegenerate parametric amplifier is analytically investigated. High-order nonlinearity causes strong entanglement… read more here.
Keywords: coupled qubits; decoherence; mode cavity; two mode ... See more keywords
Detailed Balance and Independent Electron Surface-Hopping Method: The Importance of Decoherence and Correct Calculation of Diabatic Populations.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.2c00320
Abstract: We benchmark and improve the independent electron surface-hopping (IESH) method developed by J. C. Tully's group for nonadiabatic simulations near metal surfaces. We have incorporated decoherence within the IESH method as well as implemented a… read more here.
Keywords: decoherence; diabatic populations; iesh method; calculation diabatic ... See more keywords
Decoherence and Its Role in Electronically Nonadiabatic Dynamics
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Chemical Theory and Computation"
DOI: 10.1021/acs.jctc.2c00988
Abstract: Decoherence is the tendency of a time-evolved reduced density matrix for a subsystem to assume a form corresponding to a statistical ensemble of states rather than a coherent combination of pure-state wave functions. When a… read more here.
Keywords: density matrix; decoherence role; decoherence; nonadiabatic dynamics ... See more keywords