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Contradiction of the DENSITY MATRIX notion in quantum mechanics
Contradiction of the DENSITY MATRIX notion quantum mechanics General Physics
2012/4/19
It is shown that description of a nonpolarized neutron beam by density matrix is contradictory. Density matrix is invariant with respect to choice of quantization axis, while experimental devices can ...
Time-dependent occupation numbers in reduced-density-matrix functional theory: Correlation-induced oscillations
Time-dependent occupation numbers reduced-density-matrix functional theory
2010/11/18
We prove that if the two-body terms in the equation of motion for the one-body reduced density
matrix are approximated at each instant of time from ground-state functionals, the eigenvalues of the on...
Comment on "Response calculations with an independent particle system with an exact one-particle density matrix''
calculations independent particle system one-particle density matrix
2010/11/16
We point out an error in the argument [PRL 105, 013002 (2010)] that the time independence of the occupation numbers in the adiabatic approximation follows from the invariance of the ground-state inter...
Coupled-channels density-matrix approach to low-energy nuclear collision dynamics: A technique for quantifying quantum decoherence effects on reaction observables
Coupled-channels density-matrix low-energy nuclear collision dynamics reaction observables
2010/11/11
The coupled-channels density-matrix technique for nuclear reaction dynamics, which is based on the Liouville-von Neumann equation with Lindblad dissipative terms, is developed with the inclusion of fu...
Density Matrix and Squeezed Vacuum State for General Coupling
Harmonic Oscillator
density matrix squeezed
vacuum state coupling harmonic oscillator
2007/8/15
2003Vol.40No.5pp.523-526DOI:
Density Matrix and Squeezed Vacuum State for General Coupling
Harmonic Oscillator
SONG Tong-Qiang
Department of Physics, Ningbo University,...
No-relationship Between Impossibility of Faster-Than-Light Quantum Communication and Distinction of Ensembles with the Same Density Matrix
faster-than-light communication distinction of ensembles density matrix
2007/8/15
2005Vol.44No.4pp.622-624DOI:
No-relationship Between Impossibility of Faster-Than-Light Quantum Communication and Distinction of Ensembles with the Same Density Matrix
WANG Chuan,...
Density Matrix for Mesoscopic Distributed Parameter Circuits
mesoscopic distributed parameter circuits density matrix quantum fluctuations
2007/8/15
2005Vol.43No.3pp.547-550DOI:
Density Matrix for Mesoscopic Distributed Parameter Circuits
JI Ying-Hua, WANG Qi, LUO Hai-Mei, and LEI Min-Sheng
Department of Physics, Jia...