The Born–Huang approximation loosens the Born–Oppenheimer approximation by including some electronic matrix elements, while at the same time maintains its diagonal structure in the nuclear equations of motion. As a result, the nuclei still move on isolated surfaces, obtained by the addition of a...
Toward a measurement of the effective gauge field and the Born–Huang potential with atoms in chip trapsWe study magnetic traps with very high trap frequencies where the spin is coupled to the motion of the atom. This allows us to investigate how the Born鈥揙ppenheimer approximation fails and...
Ⅳ.周期边界条件下振动谱的近似计算(The Approximation to the Vibrational Spectrum with the help of the Cyclic Boundary Condition) Ⅴ.离子晶体的能量密度(Energy Density in Ionic Crystals) Ⅵ.均匀极化四方对称性晶体里的内部场(The Inner Field in Uniformly Polarized Crystals with Tetrahedral Symmetry (the ...