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Optimal Unambiguous Discrimination of Quantum States [PDF]
Unambiguously distinguishing between nonorthogonal but linearly independent quantum states is a challenging problem in quantum information processing.
Amiri, A. R. +3 more
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Quantum Discord for Generalized Bloch Sphere States [PDF]
In this study for particular states of bipartite quantum system in 2n?2m dimensional Hilbert space state, similar to m or n-qubit density matrices represented in Bloch sphere we call them generalized Bloch sphere states(GBSS), we give an efficient ...
Jafarizadeh, M. A. +2 more
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Relativity, anomalies and objectivity loophole in recent tests of local realism
Local realism is in conflict with special quantum Bell-type models. Recently, several experiments have demonstrated violation of local realism if we trust their setup assuming special relativity valid.
Bednorz Adam
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Smoothing is an estimation method whereby a classical state (probability distribution for classical variables) at a given time is conditioned on all-time (both past and future) observations.
Guevara, Ivonne, Wiseman, Howard
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Quantum jumps are more quantum than quantum diffusion
It was recently argued (Wiseman and Gambetta 2012 Phys. Rev. Lett. http://dx.doi.org/10.1103/PhysRevLett.108.220402 108 http://dx.doi.org/10.1103/PhysRevLett.108.220402 ) that the stochastic dynamics (jumps or diffusion) of an open quantum system are not
Shakib Daryanoosh, Howard M Wiseman
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Comment on "Evidence for Quantized Displacement in Macroscopic Nanomechanical Oscillators" [PDF]
In a recent Letter, Gaidarzhy et al. [1] claim to have observed evidence for "quantized displacements" of a high-order mode of a nanomechanical oscillator.
A. Cleland +7 more
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Sequential measurements of non-commuting observables with quantum controlled interactions
The origin of non-classical correlations is difficult to identify since the uncertainty principle requires that information obtained about one observable invariably results in the disturbance of any other non-commuting observable.
Holger F Hofmann
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Why the quantitative condition fails to reveal quantum adiabaticity
The quantitative adiabatic condition (QAC), or quantitative condition, is a convenient ( a priori ) tool for estimating the adiabaticity of quantum evolutions. However, the range of the applicability of QAC is not well understood.
Dafa Li, Man-Hong Yung
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Autonomous quantum to classical transitions and the generalized imaging theorem
The mechanism of the transition of a dynamical system from quantum to classical mechanics is of continuing interest. Practically it is of importance for the interpretation of multi-particle coincidence measurements performed at macroscopic distances from
John S Briggs, James M Feagin
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Quantum contextuality is one of the fundamental notions in quantum mechanics. Proofs of the Kochen–Specker theorem and noncontextuality inequalities are two means for revealing the contextuality phenomenon in quantum mechanics.
Xiao-Dong Yu, Yan-Qing Guo, D M Tong
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