Results 1 to 10 of about 1,720 (88)

GHZ states and PR boxes in the classical limit [PDF]

open access: yesEntropy (Basel), 2016
A recent paper [1] argues that bipartite “PR-box” correlations, though designed to respect relativistic causality, in fact violate relativistic causality in the classical limit. As a test of Ref.
D. Rohrlich, Guy Hetzroni
semanticscholar   +2 more sources

Unique factorization theorem for pure quantum states

open access: yesAnnals of Mathematics and Physics, 2023
In this paper we establish a unique factorization theorem for pure quantum states expressed in computational basis. We show that there always exists unique factorization for any given N-qubit pure quantum state in terms of the tensor product of non ...
Mehendale Dhananjay P
semanticscholar   +1 more source

Distillability and partial transposition in bipartite systems [PDF]

open access: yes, 1999
Institut fu¨r Theoretische Physik, Universit¨at Hannover, D-30167 Hannover, Germany(February 1, 2008)We study the distillability of a certain class of bipartitedensity operators which can be obtained via depolarizationstarting from an arbitrary one.
W. Dür   +3 more
semanticscholar   +1 more source

Quantum mechanics of orthogonal polynomials [PDF]

open access: yes, 2017
We present a formulation of quantum mechanics based on orthogonal polynomials. The wavefunction is expanded over a complete set of square integrable basis in configuration space where the expansion coefficients are orthogonal polynomials in the energy ...
A. Alhaidari
semanticscholar   +1 more source

Exact analysis of gate noise effects on non-adiabatic transformations of spin-orbit qubits [PDF]

open access: yes, 2017
We considered various types of potential noise in gates controlling nonadiabatic holonomic transformations of spin-qubits in one and two dimensional systems with the Rashba interaction.
Lara Ulvcakar, Anton Ramvsak
semanticscholar   +1 more source

Time boundary terms and Dirac constraints [PDF]

open access: yes, 2011
Time boundary terms usually added to action principles are systematically handled in the framework of Dirac’s canonical analysis. The procedure begins with the introduction of the boundary term into the integral Hamiltonian action and then the resulting ...
G. Alejandro
semanticscholar   +1 more source

Star-quantization of an infinite wall [PDF]

open access: yes, 2005
In deformation quantization (a.k.a. the Wigner–Weyl–Moyal formulation of quantum mechanics), we consider a single quantum particle moving freely in one dimension, except for the presence of one infinite potential wall.
S. Kryukov, M. Walton
semanticscholar   +1 more source

Why the quantitative condition fails to reveal quantum adiabaticity

open access: yesNew Journal of Physics, 2014
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
doaj   +1 more source

Phase-space description of the coherent state dynamics in a small one-dimensional system

open access: yesOpen Physics, 2016
The Wigner-Moyal approach is applied to investigate the dynamics of the Gaussian wave packet moving in a double-well potential in the ‘Mexican hat’ form.
Kaczor Urszula   +4 more
doaj   +1 more source

Pseudohermitian Hamiltonians, time-reversal invariance and Kramers degeneracy [PDF]

open access: yes, 2002
A necessary and sufficient condition in order that a (diagonalizable) pseudohermitian operator admits an antilinear symmetry T such that T^{2}=-1 is proven.
Bender   +14 more
core   +2 more sources

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