Abstract:
In this article we extend results from our previous work [Bendersky, Phys. Rev. Lett. 116, 230402 (2016)PRLTAO0031-900710.1103/PhysRevLett.116.230402] by providing a protocol to distinguish in finite time and with arbitrarily high success probability any algorithmic mixture of pure states from the maximally mixed state. Moreover, we include an experimental realization, using a modified quantum key distribution setup, where two different random sequences of pure states are prepared; these sequences are indistinguishable according to quantum mechanics, but they become distinguishable when randomness is replaced with pseudorandomness within the experimental preparation process. © 2018 American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Distinguishing computable mixtures of quantum states |
Autor: | Grande, I.H.L.; Senno, G.; De La Torre, G.; Larotonda, M.A.; Bendersky, A.; Figueira, S.; Acín, A. |
Filiación: | DEILAP, CITEDEF-CONICET, Villa Martelli, Buenos Aires, Argentina ICFO-Institut de Ciencies Fotoniques, Barcelona Institute of Science and Technology, Castelldefels (Barcelona), 08860, Spain Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Computación, Buenos Aires, 1428, Argentina CONICET-Universidad de Buenos Aires, Instituto de Investigación en Ciencias de la Computación (ICC), Buenos Aires, 1428, Argentina ICREA-Institucio Catalana de Recerca i Estudis Avançats, Lluis Companys 23, Barcelona, 08010, Spain
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Palabras clave: | Mixtures; Quantum cryptography; Random processes; Experimental realizations; Finite time; Mixed state; Preparation process; Pseudorandomness; Quantum state; Random sequence; Success probabilities; Quantum theory |
Año: | 2018
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Volumen: | 97
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Número: | 5
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DOI: |
http://dx.doi.org/10.1103/PhysRevA.97.052306 |
Título revista: | Physical Review A
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Título revista abreviado: | Phys. Rev. A
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ISSN: | 24699926
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24699926_v97_n5_p_Grande |
Referencias:
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Citas:
---------- APA ----------
Grande, I.H.L., Senno, G., De La Torre, G., Larotonda, M.A., Bendersky, A., Figueira, S. & Acín, A.
(2018)
. Distinguishing computable mixtures of quantum states. Physical Review A, 97(5).
http://dx.doi.org/10.1103/PhysRevA.97.052306---------- CHICAGO ----------
Grande, I.H.L., Senno, G., De La Torre, G., Larotonda, M.A., Bendersky, A., Figueira, S., et al.
"Distinguishing computable mixtures of quantum states"
. Physical Review A 97, no. 5
(2018).
http://dx.doi.org/10.1103/PhysRevA.97.052306---------- MLA ----------
Grande, I.H.L., Senno, G., De La Torre, G., Larotonda, M.A., Bendersky, A., Figueira, S., et al.
"Distinguishing computable mixtures of quantum states"
. Physical Review A, vol. 97, no. 5, 2018.
http://dx.doi.org/10.1103/PhysRevA.97.052306---------- VANCOUVER ----------
Grande, I.H.L., Senno, G., De La Torre, G., Larotonda, M.A., Bendersky, A., Figueira, S., et al. Distinguishing computable mixtures of quantum states. Phys. Rev. A. 2018;97(5).
http://dx.doi.org/10.1103/PhysRevA.97.052306