COMPARING QUANTUM ENTROPIES AND UNCERTAINTIES FOR 2-MODE SQUEEZED, COHERENT AND INTELLIGENT SPIN STATES

被引:2
作者
ARAGONE, C
MUNDARAIN, D
机构
[1] Departamento de Física, Universidad Simón Bolívar, Caracas, 1080 A
关键词
D O I
10.1016/0375-9601(92)90081-V
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We compute the quantum entropy for a two-mode system set in squeezed states and for a three-dimensional angular momentum system set either in a coherent or in an intelligent spin state. These quantities are compared with their respective quantum mechanical uncertainties. It is shown that in general q-entropies and uncertainties have a concomitant behavior, i.e. they increase or decrease simultaneously. We find however an anomalous behavior for the angular momentum system set in a proper intelligent state. For the sake of completeness we also compute both quantities for Delbourgo states. They show the same qualitative behavior as the coherent spin states.
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页码:89 / 95
页数:7
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