Efficient quantum information transfer through a uniform channel (Abstract/Comunicazione in atti di convegno)

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  • Efficient quantum information transfer through a uniform channel (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • L. Banchi (a,b); T.J.G. Apollaro (a); A. Cuccoli (a,b); R. Vaia (c); P. Verrucchi (c,a,b) (2011)
    Efficient quantum information transfer through a uniform channel
    in 36th Conference of the Middle European Cooperation in Statistical Physics - MECO 36, Lviv, Ukraine, 5-7/04/2011
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • L. Banchi (a,b); T.J.G. Apollaro (a); A. Cuccoli (a,b); R. Vaia (c); P. Verrucchi (c,a,b) (literal)
Pagina inizio
  • 66 (literal)
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  • O 22-Oral Contributions. (literal)
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  • http://www.icmp.lviv.ua/meco36/ (literal)
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  • MECO 36 - Book of abstracts (literal)
Note
  • Comunicazione (literal)
  • Abstract (literal)
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  • (a) Dipartimento di Fisica e Astronomia, Università di Firenze, via G.Sansone 1, I-50019 Sesto Fiorentino (FI), Italy (b) Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, via G.Sansone 1, I-50019 Sesto Fiorentino (FI), Italy (c) Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, I-50019 Sesto Fiorentino (FI), Italy (literal)
Titolo
  • Efficient quantum information transfer through a uniform channel (literal)
Abstract
  • Effective quantum-state and entanglement transfer can be obtained by inducing a coherent dynamics in quantum wires with homogeneous intrawire interactions. This goal is accomplished by optimally tuning the coupling between the wire endpoints and the two qubits there attached. A general procedure to determine such value is devised, and scaling laws between the optimal coupling and the length of the wire are found. The procedure is implemented in the case of a wire consisting of a spin- 1/2 XY chain: results for the time dependence of the quantities which characterize quantum-state and entanglement transfer are found of extremely good quality also for very long wires. The present approach does not require engineered intrawire interactions nor a specific initial pulse shaping, and can be applied to a vast class of quantum channels. [1] Banchi L., Apollaro T.J.G., Cuccoli A., Vaia R., Verrucchi P., Phys. Rev. A, 2010, 82, 052321 (literal)
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