O437 96063679双模压缩数态及参量放大器中的压缩对称性=Two-mode squeezed number states andsqueeze symmetry in the two-mode parametricamplifier[刊,中]/张云波,刘文森,苏大春(山西大学物理系.山西,太原(030006))//光学学报.-1996...O437 96063679双模压缩数态及参量放大器中的压缩对称性=Two-mode squeezed number states andsqueeze symmetry in the two-mode parametricamplifier[刊,中]/张云波,刘文森,苏大春(山西大学物理系.山西,太原(030006))//光学学报.-1996,16(1).-68-73得到了参量放大器哈密顿量与广义双模压缩算符共同本征的双模压缩数态。提出了压缩荷与压缩对称性的概念来解释哈密顿量在由广义压缩算符生成的一维么正群变换下的不变性。图4(严寒)展开更多
For entangled three particles one should treat their wave function as a whole.There is no physical meaning talking about the wave function(or Wigner function) for any one of the tripartite,and therefore considering th...For entangled three particles one should treat their wave function as a whole.There is no physical meaning talking about the wave function(or Wigner function) for any one of the tripartite,and therefore considering the entangled Wigner function(Wigner operator) is of necessity.In this paper,we introduce a pair of mutually conjugate tripartite entangled state representations for defining the Wigner operator of entangled tripartite.Its marginal distributions and the Wigner function of the three-mode squeezed vacuum state are presented.Deriving wave function from its corresponding tripartite entangled Wigner function is also discussed.Moreover,through establishing the n-mode entangled state representation,we introduce the n-mode entangled Wigner operator,which would be more generally useful in quantum physics.展开更多
We propose an efficient scheme for realizing two-mode squeezing for two cavity modes with an atomic ensemble trapped in the cavity and driven by two classical fields. Through a suitable choice of the driving classical...We propose an efficient scheme for realizing two-mode squeezing for two cavity modes with an atomic ensemble trapped in the cavity and driven by two classical fields. Through a suitable choice of the driving classical fields, the evolution dynamics of the two cavity modes is decoupled with the atomic system and described by a two-mode squeezing operator. We show that a highly squeezed state can be obtained at the output even with a bad cavity. The required experimental techniques are within the scope of what can be obtained in the BEG-cavity setup.展开更多
文摘O437 96063679双模压缩数态及参量放大器中的压缩对称性=Two-mode squeezed number states andsqueeze symmetry in the two-mode parametricamplifier[刊,中]/张云波,刘文森,苏大春(山西大学物理系.山西,太原(030006))//光学学报.-1996,16(1).-68-73得到了参量放大器哈密顿量与广义双模压缩算符共同本征的双模压缩数态。提出了压缩荷与压缩对称性的概念来解释哈密顿量在由广义压缩算符生成的一维么正群变换下的不变性。图4(严寒)
基金supported by the Postdoctoral Science Foundation of Jiangsu Province (Grant No.1202012B)the Research Fund for Advanced Talents of Jiangsu University (Grant No.1281190029)
文摘For entangled three particles one should treat their wave function as a whole.There is no physical meaning talking about the wave function(or Wigner function) for any one of the tripartite,and therefore considering the entangled Wigner function(Wigner operator) is of necessity.In this paper,we introduce a pair of mutually conjugate tripartite entangled state representations for defining the Wigner operator of entangled tripartite.Its marginal distributions and the Wigner function of the three-mode squeezed vacuum state are presented.Deriving wave function from its corresponding tripartite entangled Wigner function is also discussed.Moreover,through establishing the n-mode entangled state representation,we introduce the n-mode entangled Wigner operator,which would be more generally useful in quantum physics.
基金Supported by the Major State Basic Research Development Program of China under Grant No.2012CB921601
文摘We propose an efficient scheme for realizing two-mode squeezing for two cavity modes with an atomic ensemble trapped in the cavity and driven by two classical fields. Through a suitable choice of the driving classical fields, the evolution dynamics of the two cavity modes is decoupled with the atomic system and described by a two-mode squeezing operator. We show that a highly squeezed state can be obtained at the output even with a bad cavity. The required experimental techniques are within the scope of what can be obtained in the BEG-cavity setup.
