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Spin-squeezed atoms boost interferometry（图）
Spin-squeezed atoms interferometry atomic clocks
2010/4/15
Physicists in Germany are the first to use "spin-squeezed" atoms to boost the precision of an interferometer based on interacting atoms. Their work involves entangling several hundred atoms in a way t...
Periodic spin textures in a degenerate F=1 $^{87}$Rb spinor Bose gas
Periodic spin textures degenerate F=1 $^{87}$Rb spinor Bose gas
2010/4/13
We report on the spin textures produced by cooling unmagnetized $^{87}$Rb F=1 spinor gases into the regime of quantum degeneracy. At low temperatures, magnetized textures form that break translational...
Symplectic Integration Methods in Molecular and Spin Dynamics Simulations
Symplectic Integration Methods Molecular and Spin Dynamics Simulations
2010/10/19
We review recently developed decomposition algorithms for molecular dynamics and spin dynamics simulations of many-body systems. These methods are time reversible, symplectic, and the error in the tot...
Spin dynamics of wave packets evolving with the Dirac Hamiltonian in atoms with high Z
Spin dynamics wave packets evolving Dirac Hamiltonian atoms high Z
2010/10/15
The motion of circular WP for one electron in central Coulomb field with high Z is calculated. The WP is defined in terms of solutions of the Dirac equation in order to take into account all possible ...