The diffusion of N adatoms on a Ga-rich GaN(0001) surface has been studied using density-functional theory. The configuration of Ga adatoms on a Ga-rich GaN sur
A scheme is proposed to implement a universal quantum cloning machine with atoms trapped in an optical cavity.In the scheme the atoms are always populated in th
Introducing an explicit expression of gauge transformation tuing the spin in linear order of spectral parameter in the first Lax pair into the third axis in spi
Dammann grating is useful in information technology as an optical splitter. It is usually fabricated through complicated processes. Here we report on the direct
We present rotationally invariant proof of Bells theorem without inequalities for spin-2N+1/2 system (N = 2k- 1,k = 1, 2, 3, 4...) with only two particles, whic
A single long-period fibre grating (LPFG) element written by focused high-frequency CO2 laser pulses is demonstrated for simultaneous measurement of transverse