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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24404
Title: 
Sudden death of entanglement and teleportation fidelity loss via the Unruh effect
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
1050-2947
Sponsorship: 
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Abstract: 
We use the Unruh effect to investigate how the teleportation of quantum states is affected when one of the entangled qubits used in the process is under the influence of some external force. In order to reach a comprehensive understanding, a detailed analysis of the acceleration effect on such entangled qubit system is performed. In particular, we calculate the mutual information and concurrence between the two qubits and show that the latter has a sudden death at a finite acceleration, whose value will depend on the time interval along which the detector is accelerated.
Issue Date: 
1-Sep-2009
Citation: 
Physical Review A. College Pk: Amer Physical Soc, v. 80, n. 3, p. 8, 2009.
Time Duration: 
8
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevA.80.032315
URI: 
http://hdl.handle.net/11449/24404
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24404
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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