Quantum switch for single-photon transport in a coupled superconducting transmission-line-resonator array
Quantum switch for single-photon transport in a coupled superconducting transmission-line-resonator array
复制标题
用于耦合超导传输线谐振器阵列中单光子传输的量子开关
DOI：
10.1103/physreva.80.014301
复制
发表时间：
2009-07-01
影响因子：
2.9
通讯作者：
Sun, C. P.
中科院分区：
文献类型：
--
作者：
Liao, Jie-Qiao;Huang, Jin-Feng;Sun, C. P.
提出并研究了一种在耦合超导传输线谐振器阵列中实现单光子输运量子开关的方法。我们发现，具有任意波矢的单光子可以在该系统中以可控的方式输运。我们还研究了如何通过库珀对盒（CPB）实现两个TLR之间的可控跳跃相互作用。当CPB的频率与两个TLR的频率在很大程度上失谐时，CPB的变量可以被精确地消除，从而可以获得两个TLR之间的可控相互作用。
We propose and study an approach to realize quantum switch for single-photon transport in a coupled superconducting transmission-line-resonator (TLR) array with one controllable hopping interaction. We find that the single photon with arbitrary wave vector can transport in a controllable way in this system. We also study how to realize controllable hopping interaction between two TLRs via a Cooper-pair box (CPB). When the frequency of the CPB is largely detuned from those of the two TLRs, the variables of the CPB can be adiabatically eliminated and thus a controllable interaction between two TLRs can be obtained.