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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

UNIVERSALITY OF SUDDEN DEATH OF ENTANGLEMENT

Author(s):
Fanchini, Felipe Fernandes [1] ; Marques Furtado De Mendonca, Paulo Eduardo [2] ; Napolitano, Reginald de Jesus [3]
Total Authors: 3
Affiliation:
[1] Univ Fed Ouro Preto, Dept Fis, BR-35400000 Ouro Preto, MG - Brazil
[2] Acad Forca Aerea, Div Ensino, BR-13643970 Pirassununga, SP - Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: QUANTUM INFORMATION & COMPUTATION; v. 11, n. 7-8, p. 677-694, JUL 2011.
Web of Science Citations: 3
Abstract

We present a constructive argument to demonstrate the universality of the sudden death of entanglement in the case of two non-interacting qubits, each of which generically coupled to independent Markovian environments at zero temperature. Conditions for the occurrence of the abrupt disappearance of entanglement are determined and, most importantly, rigourously shown to be almost always satisfied: Dynamical models for which the sudden death of entanglement does not occur are seen to form a highly idealized zero-measure subset within the set of all possible quantum dynamics. (AU)