SECRET SHARING OF N-ATOM ENTANGLED STATE IN CAVITY QED
Zhong‐Xiao Man, Yun‐Jie Xia, Zhanjun Zhang · International Journal of Modern Physics C · 2007
We propose a scheme to secret sharing of an unknown N-atom entangled state in driven cavity QED. The scheme needs only atomic Bell states as the quantum channels and joint Bell-state measurement is unnecessary. In addition, the scheme is insensitive to the cavity decay and the thermal field.