文献类型：期刊文献

英文题名：Critical phenomenon of a consistent q-deformed squeezed state

作者：Osland, P; Zhang, JZ

机构：[1]Univ Bergen, Dept Phys, N-5007 Bergen, Norway;[2]E China Univ Sci & Technol, Inst Theoret Phys, Shanghai 200237, Peoples R China

年份：2001

卷号：290

期号：1

起止页码：45

外文期刊名：ANNALS OF PHYSICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000168792400004)】；

语种：英文

摘要：Within a self-consistent framework of the q-deformed Heisenberg algebra and its equivalent frame-work of q-deformed boson commutation relations, which relate to the under-cutting phenomenon of Heisenberg's minimal uncertainty relation, special q-deformed squeezed states are constructed. Besides the similar local maximum squeezing as the: one in the undeformed case, new strong squeezing appears when the amplitude of the related coherent state increases to large values. A critical phenomenon appears at a large value of the: amplitude: the variance of one component of the quadrature of the light field approaches zero, but the variance of the corresponding conjugate quantity remains finite, which is a surprising deviation from Heisenberg's uncertainty relation. The qualitative character exposed by this q-squeezed state may provide some evidence about q-deformed effects in current experiments. (C) 2001 Academic Press.