3 papers
quant-ph2002
Irrversibility of Entanglement Manipulations: Vagueness of the Entanglement of Cost and Entanglement of Distillation
W. -Y. Hwang, K. Matsumoto
We show that the entanglement of cost and entanglement of distillation can be vague when we consider a more general form of entanglement manipulation in which we collectively deal…
quant-ph2001
Detecting the inseparability and distillability of continuous variable states in Fock space
Wang Xiang-Bin, Matsumoto Keiji, Tomita Akihisa
The partial transposition(PT) operation is an effecient tool in detecting the inseparability of a mixed state. We give an explicit formula for the PT operation for the continuous v…
quant-ph2001
Non-adiabatic conditional geometric phase shift with NMR
Wang Xiang-Bin, Matsumoto Keiji
Conditional geometric phase shift gate, which is fault tolerate to certain errors due to its geometric property, is made by NMR technique recently under adiabatic condition. By the…