The exact entanglement evolution of two two-level systems, coupled to N surrounding spin \frac{1}{2} , is analysed with the help of a new criterion relying on the ability of measuring a few simple observables only.
FERRARO E, NAPOLI A, MESSINA A (2007). A criterion for entanglement in two two-level systems. JOURNAL OF PHYSICS. A, MATHEMATICAL AND THEORETICAL, 40, F935-F941 [10.1088/1751-8113/40/43/F02].
A criterion for entanglement in two two-level systems
FERRARO, Elena;NAPOLI, Anna;MESSINA, Antonino
2007-01-01
Abstract
The exact entanglement evolution of two two-level systems, coupled to N surrounding spin \frac{1}{2} , is analysed with the help of a new criterion relying on the ability of measuring a few simple observables only.
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