| Spontaneous U（1） Symmetry Breaking in Coupled Bose System |
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| 引用本文： | 王影,徐金荣,陈理,刘果红.Spontaneous U（1） Symmetry Breaking in Coupled Bose System[J].理论物理通讯,2011,55(6):997-1000. |
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| 作者姓名： | 王影 徐金荣 陈理 刘果红 |
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| 作者单位： | [1]Department of Mathematics and Physics, Anhui University of Architecture, Hefei 230601, China [2]Department of Physics, Southeast University, Nanjing 210096, China |
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| 摘 要： |
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| 关 键 词： | 玻色系统 对称破缺 Bose 耦合 Feshbach共振 爱因斯坦凝聚 弱相互作用 平均场近似 |
| 收稿时间： | 2010-09-30 |
Spontaneous U(1) Symmetry Breaking in Coupled Bose System |
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| WANG Ying,XU Jin-Rong,CHEN Li,LIU Guo-Hong.Spontaneous U(1) Symmetry Breaking in Coupled Bose System[J].Communications in Theoretical Physics,2011,55(6):997-1000. |
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| Authors: | WANG Ying XU Jin-Rong CHEN Li LIU Guo-Hong |
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| Institution: | 1.Department of Mathematics and Physics, Anhui University of Architecture,;Hefei 230601, China
;2.Department of Physics, Southeast University, Nanjing 210096, China |
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| Abstract: | Adding a U(1) symmetry breaking term V1/2 a(λ1a0+λ*1a†0)+V1/2(λ2b0+λ*2b†0) to Bogoliubov's truncated Hamiltonian HB for a weakly interacting coupled Bose system, by using the mean-field approximation rather than the c-number approximation, we find that, via a Feshbach resonance at zero temperature, the states of the coupled Bose system are generalized SU(1,1) × SU(1,1) coherent states. The Bose-Einsteincondensation occurs in response to the spontaneous U(1) symmetry breaking. |
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| Keywords: | BEC U（1） symmetry breaking generalized SU（1 1） SU（1 1） coherent state Feshbach resonance |
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