New complex function space related to both entangled state representation and spin coherent state

2015 ◽  
Vol 56 (8) ◽  
pp. 082102 ◽  
Author(s):  
Cui-hong Lv ◽  
Hong-yi Fan
2020 ◽  
Vol 26 (1) ◽  
pp. 7-13
Author(s):  
李兰兰 LI Lan-lan ◽  
张科 ZHANG Ke ◽  
余海军 YU Hai-jun ◽  
杜建明 DU Jian-ming ◽  
范洪义 FAN Hong-yi

2007 ◽  
Vol 21 (04) ◽  
pp. 183-188 ◽  
Author(s):  
H.-Y. FAN ◽  
H.-L. LU

In the framework of thermo-field dynamics, invented by Umezawa et al., we construct a mixed coherent state representation of density operator ρ. This new representation is useful because it provides an approach to retrieve ρ from its c-number solution of master equations in the entangled state representation.


2007 ◽  
Vol 21 (07) ◽  
pp. 365-375
Author(s):  
HONG-YI FAN ◽  
NIAN-QUAN JIANG

By virtue of the entangled state representation, we show that a new function space for Landau state vectors can be constructed. As a result, the magnetic translation and degeneracy of some Landau states can be analyzed in a direct and transparent manner.


2004 ◽  
Vol 18 (02) ◽  
pp. 233-240 ◽  
Author(s):  
HONG-YI FAN

Based on the entangled state representation and the appropriate bosonic phase operator we develop the superconducting capacitor model in the presence of a voltage bias and a current bias. In so doing, the full Hamiltonian operator theory for a superconducting barrier is established.


2013 ◽  
Vol 52 (7) ◽  
pp. 2255-2262
Author(s):  
Wen-Wei Luo ◽  
Xiang-Guo Meng ◽  
Qin Guo ◽  
Shan-Jun Ma

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