2 papers
quant-ph2004
A protocol for secure and deterministic quantum key expansion
X. B. Wang
In all existing protocols of private communication with encryption and decryption, the pre-shared key can be used for only one time. We give a deterministic quantum key expansion p…
quant-ph2001
A simple way to detect the state transition caused by the nondiagonal abelian Berry phase
X. B. Wang, K. Matsumoto, H. Fan +2
In a nondegenerate syste, the abelian Berry's phase will never cause transitions among the Hamiltonian's eigenstate. However, in a degenerate syatem, it is well known that the stat…