Quantum communication via controlled holes in the statistical distribution of excitations in a nanoresonator coupled to a Cooper pair box  

作　　者：C.Valverde A.T.Avelar B.Baseia 

机构地区：[1]Universidade Paulista,Rod.BR 153,km 7,74845-090 Goia nia,GO,Brazil [2]Universidade Estadual de Goiás,Rod.BR 153,3105,75132-903 Anápolis,GO,Brazil [3]Instituto de Física,Universidade Federal de Goiás,74001-970 Goia nia,GO,Brazil

出　　处：《Chinese Physics B》2012年第3期74-79,共6页中国物理B（英文版）

基　　金：Project supported by the FAPEG (CV);INCT-IQ (ATA);the CNPq (ATA,BB)

摘　　要：We propose a scheme to transmit information via the statistical distribution of excitations of a nanomechanical resonator. It employs a controllable coupling between this system and a Cooper pair box. The success probability and the fidelity are calculated and compared with those obtained in an atom-field system in different regimes. Addtionaly, the scheme can also be applied to prepare low excited Fock states.We propose a scheme to transmit information via the statistical distribution of excitations of a nanomechanical resonator. It employs a controllable coupling between this system and a Cooper pair box. The success probability and the fidelity are calculated and compared with those obtained in an atom-field system in different regimes. Addtionaly, the scheme can also be applied to prepare low excited Fock states.

关 键 词：quantum communication quantum state engineering superconducting circuits nanome- chanical resonator 

分 类 号：O413.1[理学—理论物理]