INVESTIGADORES
LEITAO Leonardo
artículos
Título:
Entanglement for all quantum states
Autor/es:
A. C. DE LA TORRE; D. GOYENECHE; L. LEITAO
Revista:
EUROPEAN JOURNAL OF PHYSICS
Editorial:
IOP PUBLISHING LTD
Referencias:
Año: 2010 vol. 31 p. 325 - 332
ISSN:
0143-0807
Resumen:
It is shown that a state that is factorizable in the Hilbert space corresponding to some choice of degrees of freedom, becomes entangled for a different choice of degrees of freedom. Therefore, entanglement is not a special case but is ubiquitous in quantum systems. Simple examples are calculated and a general proof is provided. The physical relevance of the change of tensor product structure is mentioned.
