A simple and scalable scheme is proposed to generate a n-qubit W state in a trapped-ion system without the Lamb-Dicke limit. The n-qubit W state can be generate
Melt of Nd60Cu20Ni1oAl10 alloy is solidified by rapid compression from 0.1 to 5.5 GPa at 793K and from 0.1to 3.2GPa at 873K within 20ms,separately.A fully bulk
We study the radiative energy level shifts of a two-level atom in dipole coupling to the derivative of a massless scalar quantum field in a spacetime with a per