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Interferometry with independent Bose-Einstein condensates: parity as an EPR/Bell quantum variable
Condensate quantum mechanical interferometer binary particles
2014/12/19
When independent Bose-Einstein condensates (BEC), described quantum mechanically by Fock (number) states, are sent into interferometers, the measurement of the output port at which the particles are d...
Oscillatory critical amplitudes in hierarchical models and the tail of the Harris random variable
hierarchical models iteration of polynomial maps oscillatory critical amplitudes Harris random variable geometry of Julia set
2012/6/27
Oscillatory critical amplitudes have been repeatedly observed in hierarchical models and, in the cases that have been taken into consideration, these oscillations are so small to be hardly detectable....
Generation of continuous-variable quadripartite square cluster state and its entanglement improvement via quantum feedback
quantum optics continuous variable cluster state feedback
2011/12/15
In this paper, we investigate the generation of continuous-variable quadripartite square cluster state of optical fields and discuss the enhancement of the multipartite entanglement of the cluster sta...
Extremum conditions for functionals involving higher derivatives of several variable vector valued functions
Variational problems critical points extremum conditions
2011/9/21
Abstract: This paper addresses both necessary and relevant sufficient extremum conditions for a variational problem defined by a smooth Lagrangian, involving higher derivatives of several variable vec...
Matrix Superpotential Linear in Variable Parameter
Matrix Superpotential Linear Variable Parameter Mathematical Physics
2011/9/19
Abstract: The paper presents the classification of matrix valued superpotentials corresponding to shape invariant systems of Schr\"odinger equations. All inequivalent irreducible matrix superpotential...
A Sequence of Relaxations Constraining Hidden Variable Models
Hidden Variable Models Relaxations
2011/9/13
Many widely studied graphical models with latent variables lead to nontrivial constraints on the distribution of the observed variables.Inspired by the Bell inequalities in quantum mechanics, we refer...
Removal of UV cutoff for the Nelson model with variable coefficients
Nelson model static space-times ground state ultraviolet limit
2011/9/15
Abstract: We consider the Nelson model with variable coefficients. Nelson models with variable coefficients arise when one replaces in the usual Nelson model the flat Minkowski metric by a static metr...
The uniqueness in the inverse problem for transmission eigenvalues for the spherically-symmetric variable-speed wave equation
transmission eigenvalues inverse spectral problem variable-speed wave equation
2011/7/26
The uniqueness in the inverse problem for transmission eigenvalues for the spherically-symmetric variable-speed wave equation.
Time separation as a hidden variable to the Copenhagen school of quantum mechanics
hidden variable Copenhagen school
2010/12/27
The Bohr radius is a space-like separation between the proton and electron in the hydrogen atom. According to the Copenhagen school of quantum mechanics, the proton is sitting in the absolute Lorentz ...
Continuous variable quantum key distribution in non-Markovian channels
non-Markovian variable quantum
2010/11/8
We address continuous variable quantum key distribution (QKD) in non-Markovian lossy channels and show how the non-Markovian features may be exploited to enhance security and/or to detect the presence...
Would one rather store squeezing or entanglement in continuous variable quantum memories?
rather store squeezing entanglement continuous variable
2010/11/5
Given two quantum memories for continuous variables (e.g., the collective pseudo-spin of two atomic ensembles) and the possibility to perform passive optical operations (typically beam-splitters) on t...
Relativistic almost local hidden-variable theory
Relativistic almost local hidden-variable theory
2010/11/4
A simple relativistic quantum hidden-variable theory of particle trajectories, similar to the Bohm theory but without nonlocal forces between the particles, is proposed. To provide compatibility with...
Early Stage Disentanglement in Bipartite Continuous-Variable Systems
Early Stage Disentanglement Bipartite Continuous-Variable Systems
2010/10/20
Entanglement may vanish even for a limited amount of loss imposed on the quantum state, a
phenomenon known as entanglement sudden death in discrete systems, or, as proposed, early stage
disentanglem...
Analysis of a continuous-variable quadripartite cluster state from a single optical parametric oscillator
continuous-variable quadripartite cluster state single optical parametric oscillator
2010/10/20
We examine the feasibility of generating continuous-variable multipartite entanglement in an
intra-cavity quadruply concurrent downconversion scheme that has been proposed for the generation of clust...
Unveiling quantum Hall transport by Efros-Shklovskii to Mott variable range hopping transition with Graphene
Mott variable range transition
2010/10/26
The quantum localization in the quantum Hall regime is revisited using Graphene monolayers
with accurate measurements of the longitudinal resistivity as a function of temperature and current.We exper...