3 papers
quant-ph2004
On the effectiveness of the protocol creating the maximum entanglement of two charge-phase qubits by cavity field
C. Li, Y. B. Gao
We revisit the protocols to create maximally entangled states between two Josephson junction (JJ) charge phase qubits coupled to a microwave field in a cavity as a quantum data bus…
quant-ph2002
Engineering Progressive Decoherence with Quantum Jumps in Charge Qubit
Y. D. Wang, Y. B. Gao, C. P. Sun
For the Josephson junction charge qubits with macroscopically quantum natures, we propose a theoretical scheme to observe the loss of quantum coherence through coupling such qubit…
quant-ph1998
Gardiner's phonon for Bose-Einstein Condensation: A physical realization of the -deformed Boson
C. P. Sun, S. X. Yu, Y. B. Gao
The Gardiner's phonon presented for a particle-number conserving approximation method to describe the dynamics of Bose-Einstein Condesation (BEC) (C.W. Gardiner, Phys. Rev. A 56, 1…