Results 51 to 60 of about 4,887 (84)

Optimal quantum states for frequency estimation

open access: yesNew Journal of Physics, 2014
We investigate different quantum parameter estimation scenarios in the presence of noise, and identify optimal probe states. For frequency estimation of local Hamiltonians with dephasing noise, we determine optimal probe states for up to 70 qubits, and ...
F Fröwis   +3 more
doaj   +1 more source

Einstein-Podolsky-Rosen Steering for Mixed Entangled Coherent States. [PDF]

open access: yesEntropy (Basel), 2021
Abdel-Khalek S   +3 more
europepmc   +1 more source

Signatures of the many-body localization transition in the dynamics of entanglement and bipartite fluctuations

open access: yesNew Journal of Physics, 2016
The many-body localization transition is a dynamical quantum phase transition between a localized and an extended phase. We study this transition in the XXZ model with disordered magnetic field and focus on the time evolution following a global quantum ...
Rajeev Singh   +2 more
doaj   +1 more source

Tavis-Cummings Model with Moving Atoms. [PDF]

open access: yesEntropy (Basel), 2021
Abdel-Khalek S   +6 more
europepmc   +1 more source

Classical entanglement in polarization metrology

open access: yesNew Journal of Physics, 2014
Quantum approaches relying on entangled photons have been recently proposed to increase the efficiency of optical measurements. We demonstrate here that, surprisingly, the use of classical light with entangled degrees of freedom can also bring ...
Falk Töppel   +4 more
doaj   +1 more source

More randomness from the same data

open access: yesNew Journal of Physics, 2014
Correlations that cannot be reproduced with local variables certify the generation of private randomness. Usually, the violation of a Bell inequality is used to quantify the amount of randomness produced.
Jean-Daniel Bancal   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy