Results 31 to 40 of about 748,306 (335)

Proposal for demonstration of long-range cluster state entanglement in the presence of photon loss

open access: yesAPL Photonics, 2017
Photonic cluster states are a crucial resource for optical quantum computing. Recently a quantum dot single photon source has been demonstrated to produce strings of single photons in a small linear cluster state.
Thomas Nutz   +3 more
doaj   +1 more source

On the power of one pure steered state for EPR-steering with a pair of qubits

open access: yesNew Journal of Physics, 2023
As originally introduced, the Einstein, Podolsky and Rosen (EPR) phenomenon was the ability of one party (Alice) to steer, by her choice between two measurement settings, the quantum system of another party (Bob) into two distinct ensembles of pure ...
Qiu-Cheng Song   +2 more
doaj   +1 more source

Non-Markovian dynamics in open quantum systems [PDF]

open access: yes, 2015
The dynamical behavior of open quantum systems plays a key role in many applications of quantum mechanics, examples ranging from fundamental problems, such as the environment-induced decay of quantum coherence and relaxation in many-body systems, to ...
Breuer, Heinz-Peter   +3 more
core   +2 more sources

The simplest demonstrations of quantum nonlocality

open access: yesNew Journal of Physics, 2012
We investigate the complexity cost of demonstrating the key types of nonclassical correlations—Bell inequality violation, Einstein, Podolsky, Rosen (EPR)-steering, and entanglement—with independent agents, theoretically and in a photonic experiment.
Dylan J Saunders   +5 more
doaj   +1 more source

Image-charge detection of the Rydberg transition of electrons on superfluid helium confined in a microchannel structure

open access: yesNew Journal of Physics, 2022
The image-charge detection provides a new direct method for the detection of the Rydberg transition of electrons trapped on the surface of liquid helium. The interest in this method is motivated by the possibility to accomplish the spin state readout for
S Zou, D Konstantinov
doaj   +1 more source

Time-reversal symmetric work distributions for closed quantum dynamics in the histories framework [PDF]

open access: yes, 2017
A central topic in the emerging field of quantum thermodynamics is the definition of thermodynamic work in the quantum regime. One widely used solution is to define work for a closed system undergoing non-equilibrium dynamics according to the two-point ...
Anders, Janet, Miller, Harry J. D.
core   +2 more sources

Interfering trajectories in experimental quantum-enhanced stochastic simulation

open access: yesNature Communications, 2019
Quantum devices should allow simulating stochastic processes using less memory than classical counterparts, but only if quantum coherence is maintained through multiple steps.
Farzad Ghafari   +5 more
doaj   +1 more source

On factorized overlaps: Algebraic Bethe Ansatz, twists, and separation of variables

open access: yesNuclear Physics B, 2021
We investigate the exact overlaps between eigenstates of integrable spin chains and a special class of states called “integrable initial/final states”.
Tamás Gombor, Balázs Pozsgay
doaj   +1 more source

Quantum state smoothing: why the types of observed and unobserved measurements matter

open access: yesNew Journal of Physics, 2019
We investigate the estimation technique called quantum state smoothing introduced in (Guevara and Wiseman 2015 Phys. Rev. Lett. 115 180407), which offers a valid quantum state estimate for a partially monitored system, conditioned on the observed record ...
Areeya Chantasri   +2 more
doaj   +1 more source

Entanglement dynamics in chaotic systems [PDF]

open access: yes, 2004
We study quantum chaos for systems with more than one degree of freedom, for which we present an analysis of the dynamics of entanglement. Our analysis explains the main features of entanglement dynamics and identifies entanglement-based signatures of ...
Ghose, Shohini, Sanders, Barry C.
core   +4 more sources

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