Results 71 to 80 of about 4,152 (114)
Elementary Quantum Mechanics in a Space-time Lattice
, 2010 Studies of quantum fields and gravity suggest the existence of a minimal length, such as Planck length \cite{Floratos,Kempf}. It is natural to ask how the existence of a minimal length may modify the results in elementary quantum mechanics (QM) problems ...
A. Kempf +11 more
core +1 more source
The Schrödinger–Newton equation and its foundations
New Journal of Physics, 2014 The necessity of quantising the gravitational field is still subject to an open debate. In this paper we compare the approach of quantum gravity, with that of a fundamentally semi-classical theory of gravity, in the weak-field non-relativistic limit.
Mohammad Bahrami +3 more
doaj +1 more source
Models for Quantum Measurement of Particles with Higher Spin. [PDF]
Entropy (Basel), 2022 Nieuwenhuizen TM.
europepmc +1 more source
Quantum parameter estimation with imperfect reference frames
New Journal of Physics, 2015 Quantum metrology studies quantum strategies which enable us to outperform their classical counterparts. In this framework, the existence of perfect classical reference frames is usually assumed.
Dominik Šafránek +2 more
doaj +1 more source
Quantum Teleportation and Dense Coding in Multiple Bosonic Reservoirs. [PDF]
Entropy (Basel), 2022 Wang Y, Hu ML.
europepmc +1 more source
Optimal lossy quantum interferometry in phase space
New Journal of Physics, 2017 We analyse the phase space representation of the optimal measurement of a phase shift in an interferometer with equal photon loss in both its arms. In the local phase estimation scenario with a fixed number of photons, we identify features of the spin ...
Andrei B Klimov +4 more
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Semi-Classical Discretization and Long-Time Evolution of Variable Spin Systems. [PDF]
Entropy (Basel), 2021 Morales-Hernández GE +3 more
europepmc +1 more source
Valid lower bound for all estimators in quantum parameter estimation
New Journal of Physics, 2016 The widely used quantum Cramér–Rao bound (QCRB) sets a lower bound for the mean square error of unbiased estimators in quantum parameter estimation, however, in general QCRB is only tight in the asymptotical limit.
Jing Liu, Haidong Yuan
doaj +1 more source
Unitary Evolution and Elements of Reality in Consecutive Quantum Measurements. [PDF]
Entropy (Basel), 2022 Sokolovski D.
europepmc +1 more source
‘Quantum Cheshire Cat’ as simple quantum interference
New Journal of Physics, 2015 In a recent work, Aharonov et al suggested that a photon could be separated from its polarization in an experiment involving pre- and post-selection (Aharonov et al 2013 New J. Phys.
Raul Corrêa +3 more
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