4 papers · 1 filter
General Schemes for multi-particle d-dimensional Cat-like State Teleportation
Bei Zeng, Xiao Shu Liu, Yan Song Li +1
Two kinds of -particle d-dimensional cat-like state teleportation protocols are present. In the first protocol, the teleportation is achieved by d-dimensional Bell-basis measure…
On the quantum mechanical nature in liquid NMR quantum computing
G L Long, H Y Yan, Y s Li +6
The quantum nature of bulk ensemble NMR quantum computing --the center of recent heated debate, is addressed. Concepts of the mixed state and entanglement are examined, and the dat…
A novel SO(3) picture for quantum searching
Gui Lu Long, Chang Cun Tu, Yan Song Li +2
An SO(3) picture of the generalized Grover's quantum searching algorithm,with arbitrary unitary transformation and with arbitrary phase rotations, is constructed. In this picture,…
An intrinsic limitation on the size of quantum database
Gui Lu Long, Yan Song Li, Wei Lin Zhang +1
It is found that Grover's quantum search algorithm is not robust against phase inversion and Hadmard transformation inaccuracies. Imperfect phase inversions and Hadmard-Walsh trans…