3 papers
quant-ph2011
Creating quantum discord through local generalized amplitude damping
Jianwei Xu
We show that two qubits initially in completely classical state can create quantum discord through a local generalized amplitude damping channel, but high temperature will impede t…
quant-ph2011
Robustness of quantum discord to sudden death in NMR
Jianwei Xu, Qihui Chen
We investigate the dynamics of entanglement and quantum discord of two qubits in liquid state homonuclear NMR. Applying a phenomenological description for NMR under relaxation proc…
quant-ph2010
Symplectic space and orthogonal space of n qubits
Jian-Wei Xu
In the Hilbert space of n qubits, we introduce the symplectic space (n odd) and the orthogonal space (n even) via the spin-flip operator. Under this mathematical structure we discu…