Local detection of entanglement |
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| Authors: | G. Rigolin C. O. Escobar |
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| Affiliation: | (1) Departamento de Raios Cósmicos e Cronologia, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, C.P. 6165, 13084-971 Campinas, SP, Brazil |
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| Abstract: | We construct an explicit model where it can be established if a two mode pure Gaussian system is entangled or not by acting only on one of the parts that constitute the system. Measuring the dispersion in momentum and the time evolution of the dispersion in position of one particle we can tell if entanglement is present as well as the degree of entanglement of the system. |
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