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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 ...
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...
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...
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...
2003Vol.40No.5pp.523-526DOI: Density Matrix and Squeezed Vacuum State for General Coupling Harmonic Oscillator SONG Tong-Qiang Department of Physics, Ningbo University,...
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,...
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...

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