Spin squeezing and entanglement
Klyachko, A. A.
Shumovsky, A. S.
Optics InfoBase Conference Papers
Optical Society of America
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We reformulate definition of spin squeezing and spin coherence in terms of the total variance in spin operators. We propose a new measure of spin squeezing. We show equivalence of spin squeezing and spin entanglement. © 2007 Optical Society of America.