A criterion for entanglement in two two-level systems

6533b7defe1ef96bd1275cd2

RESEARCH PRODUCT

A criterion for entanglement in two two-level systems

Antonino Messina Elena Ferraro Anna Napoli

subject

Statistics and Probability Physics Quantum Physics FOS: Physical sciences General Physics and Astronomy Statistical and Nonlinear Physics Observable Quantum entanglement Quantum Physics Squashed entanglement Multipartite entanglement Classical mechanics Simple (abstract algebra)Modeling and Simulation systems Statistical physics Quantum Physics (quant-ph)Mathematical Physics Spin-½

description

We prove a necessary and sufficient condition for the occurrence of entanglement in two two-level systems, simple enough to be of experimental interest. Our results are illustrated in the context of a spin star system analyzing the exact entanglement evolution of the central couple of spins.

year	journal	country	edition	language
2007-06-29

10.1088/1751-8113/40/43/f02 http://hdl.handle.net/10447/31317

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