156 citations · 514 across the 41 of their papers we have counts for
4 papers · 1 filter
Impossible to conjugate an unknown quantum state via a unitary evolution
Dafa Li
The no-cloning theorem, the no-deleting theorem, the no-hiding theorem, the no-flip theorem, and the no-broadcasting play a crucial role in quantum mechanics and quantum informatio…
Comparing the three W-like states with the W state
Dafa Li
In [Phy. Rev. Lett., 98, 260501 (2007)] and previous papers, the W-like states were used in many quantum communication schemes, distillation, teleportation and superdense coding. S…
No-deleting principle for two unitary copies
Dafa Li
Pati and Braunstein defined a deleting machine and showed the impossibility of deleting one of two identical copies of an unknown quantum state. So far, no one has defined two non-…
No-cloning with unitary scaling
Dafa Li
It is known that the classical information like strings of bits can be copied. In 1982, Wootters and Zurek proposed the quantum no-cloning principle. No-cloning principle says that…