Results 21 to 30 of about 734,222 (292)
Experimental optical phase measurement approaching the exact Heisenberg limit
Nature Communications, 2018 Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al.
Shakib Daryanoosh +4 more
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A possibilistic no-go theorem on the Wigner’s friend paradox
New Journal of Physics, 2023 The famous ‘Wigner’s friend’ paradox highlights the difficulty of modelling the evolution of quantum systems under measurement in situations where observers themselves are considered to be subject to the laws of quantum mechanics.
Marwan Haddara, Eric G Cavalcanti
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Experimental noiseless linear amplification using weak measurements
New Journal of Physics, 2016 The viability of quantum communication schemes rely on sending quantum states of light over long distances. However, transmission loss can degrade the signal strength, adding noise.
Joseph Ho +3 more
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Proposal for demonstration of long-range cluster state entanglement in the presence of photon loss
APL 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
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On the power of one pure steered state for EPR-steering with a pair of qubits
New 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
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The simplest demonstrations of quantum nonlocality
New 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
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New 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
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On factorized overlaps: Algebraic Bethe Ansatz, twists, and separation of variables
Nuclear 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
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Time-reversal symmetric work distributions for closed quantum dynamics in the histories framework [PDF]
, 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.
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Interfering trajectories in experimental quantum-enhanced stochastic simulation
Nature 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
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