Results 211 to 220 of about 3,339,817 (343)

Critical Energies and Wigner Functions of the Stationary States of the Bose Einstein Condensates in a Double‐Well Trap

open access: yesAdvanced Quantum Technologies, EarlyView.
The critical parameters and energies, at which the wave function of the Bose Einstein Condensate in a double well trap exhibit the symmetry breaking, are estimated. The phase space representation of the states is obtained trough the Wigner function and the trends of the negativities are analyzed.
D. J. Nader, E. Serrano‐Ensástiga
wiley   +1 more source

Photon Number Coherence in Quantum Dot‐Cavity Systems can be Enhanced by Phonons

open access: yesAdvanced Quantum Technologies, EarlyView.
Photon number coherence (PNC) is important for quantum cryptography. Because of that, the PNC within a quantum dot‐cavity system is investigated theoretically. Phonons, which interact with the quantum dot, surprisingly do not necessarily decrease PNC. It is demonstrated that it is possible to optimize other figures of merit without significant penalty ...
Paul C. A. Hagen   +4 more
wiley   +1 more source

Disentanglement–Induced Bistability in a Magnetic Resonator

open access: yesAdvanced Quantum Technologies, EarlyView.
The spontaneous disentanglement hypothesis makes the collapse postulate of quantum mechanics redundant, and enables meta‐stability in finite quantum systems, which is otherwise excluded. The hypothesis is falsifiable, since it yields predictions that are distinguishable from what is derived from standard QM. The paper reports on an experiment performed
Eyal Buks
wiley   +1 more source

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