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Bendersky, D.; Zangara, P.R.; Pastawski, H.M. "Fragility of superposition states evaluated by the Loschmidt echo" (2013) Physical Review A - Atomic, Molecular, and Optical Physics. 88(3)
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Abstract:

We consider the degradation of the dynamics of a Gaussian wave packet in a harmonic oscillator under the presence of an environment. This last is given by a single nondegenerate two-level system. We analyze how the binary degree of freedom perturbs the free evolution of the wave packet producing decoherence, which is quantified by the Loschmidt echo. This magnitude measures the reversibility of a perturbed quantum evolution. In particular, we use it here to study the relative "fragility" of coherent superpositions (cat states) with respect to incoherent ones. This fragility or sensitivity turns out to increase exponentially with the energy separation of the two components of the superposition. © 2013 American Physical Society.

Registro:

Documento: Artículo
Título:Fragility of superposition states evaluated by the Loschmidt echo
Autor:Bendersky, D.; Zangara, P.R.; Pastawski, H.M.
Filiación:Instituto de Física Enrique Gaviola, CONICET-UNC, Universidad Nacional de Córdoba, 5000, Córdoba, Argentina
Instituto de Astronomía y Física Del Espacio, CONICET-UBA, 1428, Buenos Aires, Argentina
Palabras clave:Coherent superpositions; Degree of freedom; Energy separations; Gaussian Wave Packets; Harmonic oscillators; Quantum evolution; Superposition state; Two-level system; Physics; Mathematical models
Año:2013
Volumen:88
Número:3
DOI: http://dx.doi.org/10.1103/PhysRevA.88.032102
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v88_n3_p_Bendersky

Referencias:

  • Hanson, R., Kouwenhoven, L.P., Petta, J.R., Tarucha, S., Vandersypen, L.M.K., Spins in few-electron quantum dots (2007) Reviews of Modern Physics, 79 (4), pp. 1217-1265. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: RevModPhys.79.1217&metadataPrefix=oai_apsmeta_2, DOI 10.1103/RevModPhys.79.1217
  • Awschalom, D.D., Flatté, M.E., (2007) Nat. Phys., 3, p. 153. , 1745-2473 10.1038/nphys551
  • Bloch, I., Dalibard, J., Zwerger, W., (2008) Rev. Mod. Phys., 80, p. 885. , RMPHAT 0034-6861 10.1103/RevModPhys.80.885
  • Bennett, C.H., Divincenzo, D.P., Quantum information and computation (2000) Nature, 404 (6775), pp. 247-255. , DOI 10.1038/35005001
  • Horodecki, R., Horodecki, P., Horodecki, M., Horodecki, K., (2009) Rev. Mod. Phys., 81, p. 865. , RMPHAT 0034-6861 10.1103/RevModPhys.81.865
  • Zurek, W.H., Decoherence, einselection, and the quantum origins of the classical (2003) Reviews of Modern Physics, 75 (3), pp. 715-775. , DOI 10.1103/RevModPhys.75.715
  • Stern, A., Aharonov, Y., Imry, Y., (1990) Phys. Rev. A, 41, p. 3436. , PLRAAN 1050-2947 10.1103/PhysRevA.41.3436
  • Zurek, W.H., Sub-Planck structure in phase space and its relevance for quantum decoherence (2001) Nature, 412 (6848), pp. 712-717. , DOI 10.1038/35089017
  • Levstein, P.R., Usaj, G., Pastawski, H.M., (1998) J. Chem. Phys., 108, p. 2718. , JCPSA6 0021-9606 10.1063/1.475664
  • Krojanski, H.G., Suter, D., (2004) Phys. Rev. Lett., 93, p. 090501. , PRLTAO 0031-9007 10.1103/PhysRevLett.93.090501
  • Sánchez, C.M., Levstein, P.R., Acosta, R.H., Chattah, A.K., (2009) Phys. Rev. A, 80, p. 012328. , PLRAAN 1050-2947 10.1103/PhysRevA.80.012328
  • Gorin, T., Prosen, T., Seligman, T.H., Znidaric, M., Dynamics of Loschmidt echoes and fidelity decay (2006) Physics Reports, 435 (2-5), pp. 33-156. , DOI 10.1016/j.physrep.2006.09.003, PII S0370157306003310
  • Jacquod, P., Petitjean, C., (2009) Adv. Phys., 58, p. 67. , ADPHAH 0001-8732 10.1080/00018730902831009
  • Goussev, A., Jalabert, R.A., Pastawski, H.M., Wisniacki, D.A., (2012) Scholarpedia, 7, p. 11687. , 1941-6016 10.4249/scholarpedia.11687
  • Zurek, W.H., Cucchietti, F.M., Paz, J.P., (2007) Acta Phys. Pol. B, 38, p. 1685
  • Petitjean, C., Jacquod, Ph., Quantum reversibility and echoes in interacting systems (2006) Physical Review Letters, 97 (12), p. 124103. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevLett.97.124103&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevLett.97.124103
  • Zangara, P.R., Dente, A.D., Levstein, P.R., Pastawski, H.M., (2012) Phys. Rev. A, 86, p. 012322. , PLRAAN 1050-2947 10.1103/PhysRevA.86.012322
  • Jalabert, R.A., Pastawski, H.M., Environment-independent decoherence rate in classically chaotic systems (2001) Physical Review Letters, 86 (12), pp. 2490-2493. , DOI 10.1103/PhysRevLett.86.2490
  • Jacquod, P., Adagideli, I., Beenakker, C.W.J., (2002) Phys. Rev. Lett., 89, p. 154103. , PRLTAO 0031-9007 10.1103/PhysRevLett.89.154103
  • Karkuszewski, Z.P., Jarzynski, C., Zurek, W.H., (2002) Phys. Rev. Lett., 89, p. 170405. , PRLTAO 0031-9007 10.1103/PhysRevLett.89.170405
  • Breuer, H.P., Petruccione, F., (2002) The Theory of Open Quantum Systems, , Oxford University Press, Oxford
  • Schlosshauer, M.A., (2008) Decoherence and the Quantum-To-Classical Transition, , Springer, Berlin
  • Prigodin, V.N., Altshuler, B.L., Efetov, K.B., Iida, S., (1994) Phys. Rev. Lett., 72, p. 546. , PRLTAO 0031-9007 10.1103/PhysRevLett.72.546
  • Pastawski, H.M., Levstein, P.R., Usaj, G., (1995) Phys. Rev. Lett., 75, p. 4310. , PRLTAO 0031-9007 10.1103/PhysRevLett.75.4310
  • Leggett, A.J., Chakravarty, S., Dorsey, A.T., Fisher, M.P.A., Garg, A., Zwerger, W., (1987) Rev. Mod. Phys., 59, p. 1. , RMPHAT 0034-6861 10.1103/RevModPhys.59.1
  • Marcus, R.A., (1993) Rev. Mod. Phys., 65, p. 599. , RMPHAT 0034-6861 10.1103/RevModPhys.65.599
  • Nitzan, A., (2006) Chemical Dynamics in Condensed Phases: Relaxation, Transfer and Reactions in Condensed Molecular Systems, , Oxford University Press, Oxford
  • Landau, L.D., (1932) Phys. Z. Sowjetunion, 46, p. 2
  • Zener, C., (1932) Proc. R. Soc. London, 137, p. 696. , 1364-5021 10.1098/rspa.1932.0165
  • Shevchenko, S., Ashhab, S., Nori, F., (2010) Phys. Rep., 492, p. 1. , PRPLCM 0370-1573 10.1016/j.physrep.2010.03.002
  • Cattena, C.J., Bustos-Marún, R.A., Pastawski, H.M., (2010) Phys. Rev. B, 82, p. 144201. , PRBMDO 1098-0121 10.1103/PhysRevB.82.144201
  • Deutsch, J.M., (1991) Phys. Rev. A, 43, p. 2046. , PLRAAN 1050-2947 10.1103/PhysRevA.43.2046
  • Álvarez, G.A., Danieli, E.P., Levstein, P.R., Pastawski, H.M., (2008) Phys. Rev. Lett., 101, p. 120503. , PRLTAO 0031-9007 10.1103/PhysRevLett.101.120503
  • Zangara, P.R., Dente, A.D., Torres-Herrera, E., Pastawski, H.M., Iucci, A., Santos, L.F., arXiv: 1305.4640; Mullen, K., Ben-Jacob, E., Gefen, Y., Schuss, Z., (1989) Phys. Rev. Lett., 62, p. 2543. , PRLTAO 0031-9007 10.1103/PhysRevLett.62.2543
  • Vitanov, N.V., (1999) Phys. Rev. A, 59, p. 988. , PLRAAN 1050-2947 10.1103/PhysRevA.59.988
  • Flambaum, V.V., (2000) Aust. J. Phys., 53, p. 489
  • Flambaum, V.V., Izrailev, F.M., (2001) Phys. Rev. e, 64, p. 026124. , 1063-651X 10.1103/PhysRevE.64.026124
  • Polkovnikov, A., Sengupta, K., Silva, A., Vengalattore, M., (2011) Rev. Mod. Phys., 83, p. 863. , RMPHAT 0034-6861 10.1103/RevModPhys.83.863

Citas:

---------- APA ----------
Bendersky, D., Zangara, P.R. & Pastawski, H.M. (2013) . Fragility of superposition states evaluated by the Loschmidt echo. Physical Review A - Atomic, Molecular, and Optical Physics, 88(3).
http://dx.doi.org/10.1103/PhysRevA.88.032102
---------- CHICAGO ----------
Bendersky, D., Zangara, P.R., Pastawski, H.M. "Fragility of superposition states evaluated by the Loschmidt echo" . Physical Review A - Atomic, Molecular, and Optical Physics 88, no. 3 (2013).
http://dx.doi.org/10.1103/PhysRevA.88.032102
---------- MLA ----------
Bendersky, D., Zangara, P.R., Pastawski, H.M. "Fragility of superposition states evaluated by the Loschmidt echo" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 88, no. 3, 2013.
http://dx.doi.org/10.1103/PhysRevA.88.032102
---------- VANCOUVER ----------
Bendersky, D., Zangara, P.R., Pastawski, H.M. Fragility of superposition states evaluated by the Loschmidt echo. Phys Rev A. 2013;88(3).
http://dx.doi.org/10.1103/PhysRevA.88.032102