Dominic W Berry and Barry C Sanders 2005 J. Phys. A: Math. Gen. 38 L205 doi:10.1088/0305-4470/38/14/L01
Equivalence between two-mode spin squeezed states and pure entangled states with equal spin
FREE ARTICLEDominic W Berry1,2,3 and Barry C Sanders2,3
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We prove that a pure entangled state of two subsystems with equal spin is equivalent to a two-mode spin-squeezed state under local operations except for a set of bipartite states with measure zero, and provide a counterexample to the generalization of this result to two subsystems of unequal spin.
- PACS
- MSC
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81R30 Coherent states (See also 22E45); squeezed states (See also 81V80)
- Subjects
- Dates
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Issue 14 (8 April 2005)
Received 11 January 2005, in final form 25 February 2005
Published 21 March 2005
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Equivalence between two-mode spin squeezed states and pure entangled states with equal spin
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