与人合作了一篇新论文


我与同事杨万里等人合作写了一篇用NV center耦合固体微腔实现量子逻辑门的论文,已经被APL接收,即将出版,目前预印本上也可以看到。

One-step implementation of multi-qubit conditional phase gating with nitrogen-vacancy centers coupled to a high-Q silica microsphere cavity

Wan-li Yang, Zhang-qi Yin, Zhen-yu Xu, Mang Feng, Jiang-feng Du
The diamond nitrogen-vacancy (NV) center is an excellent candidate for quantum information processing, whereas entangling separate NV centers is still of great experimental challenge. We propose an one-step conditional phase flip with three NV centers coupled to a whispering-gallery mode cavity by virtue of the Raman transition and smart qubit encoding. As decoherence is much suppressed, our scheme could work for more qubits. The experimental feasibility is justified.

update: 论文已经发表,Appl. Phys. Lett. 96, 241113 (2010)。这篇论文已经被媒体以标题为《Diamonds and the Holy Grail of Quantum Computing》广泛报道了,包括《ScienceDaily》,《Physorg》等等。