利用双光子过程实现量子信息转移

Transfer of quantum information via the two-photon process

提出了一个利用耦合双原子同时与大失谐的双光子Jaynes-Cummings模相互作用实现量子信息转移的方案.通过控制原子与腔场的相互作用时间及量子位的旋转操作角,可以实现原子与原子之间及原子与腔场之间的量子信息转移,而包含在欲转移量子态上的信息可被完全擦除.

A scheme is presented for transferring quantum information based on interaction between Jaynes-Cummings model with large detuning and two two-level atoms. It can be shown that quantum information can be transferred from one atom to the other atom, or from the cavity mode to the two atoms by manipulating the interactions between cavity field and two atoms, and the information contained in the transferring atom or cavity mode is completely erased.