State-Vector Space and Canonical Coherent States in Noncommutative Plane

JING Si-Cong, TAO Ling-Ping, LIU Qiu-Yu, and RUAN Tu-Nan

Communications in Theoretical Physics ›› 2006, Vol. 45 ›› Issue (02) : 249-254.

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Communications in Theoretical Physics ›› 2006, Vol. 45 ›› Issue (02) : 249-254.

State-Vector Space and Canonical Coherent States in Noncommutative Plane

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Abstract

The structure of the state-vector space of identical bosons in noncommutative spaces is investigated. To maintain Bose-Einstein statistics the commutation relations of phase space variables should simultaneously include coordinate-coordinate non-commutativity and momentum-momentum non-commutativity, which leads to a kind of deformed Heisenberg-Weyl algebra. Although there is no ordinary number representation in this state-vector space, several set of orthogonal and complete state-vectors can be derived which are common eigenvectors of corresponding pairs of commuting Hermitian operators. As a simple application of this state-vector space, an explicit form of two-dimensional canonical coherent state is constructed and its properties are discussed.

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noncommutative space / state-vector space / coherent state

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JING Si-Cong, TAO Ling-Ping, LIU Qiu-Yu, et al. State-Vector Space and Canonical Coherent States in Noncommutative Plane[J]. Communications in Theoretical Physics, 2006, 45(02): 249-254
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