Squeezing of a coupled state of two spinors

Details Squeezing of a coupled state of two spinors Squeezing of a coupled state of two spinors

2002-04-04

arxiv.org/abs/quant-ph/0204019v1

Physics

Quantum Physics

Typeset in LaTeX 2e using the style iopart, packages iopams,times,amssymb,graphicx; 17 pages, 5 eps figure files

Scientific paper

10.1088/0305-4470/36/19/310

The notion of spin squeezing involves reduction in the uncertainty of a component of the spin vector below a certain limit. This aspect has been studied earlier for pure and mixed states of definite spin. In this paper, this study has been extended to coupled spin states which do not possess sharp spin value. A general squeezing criterion has been obtained by requiring that a direct product state for two spinors is not squeezed. The squeezing aspect of entangled states is studied in relation to their spin- spin correlations.

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