Chin. Phys. B
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Chin. Phys. B  2013, Vol. 22 Issue (3): 030307    DOI: 10.1088/1674-1056/22/3/030307
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New approach for deriving the exact time evolution of density operator for diffusive anharmonic oscillator and its Wigner distribution function
Meng Xiang-Guoa, Wang Ji-Suoa b, Liang Bao-Longa
a Department of Physics, Liaocheng University, Liaocheng 252059, China;
b Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, College of Physics and Engineering,Qufu Normal University, Qufu 273165, China

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