WKB for coupled equations and virial coefficientsa)
نویسندگان
چکیده
Using semiclassical expressions for eigenphase shifts and bound state energies arising from WKB approximations to the solutions of coupled equations. we show that quantum mechanical formulas for the third virial coefficient (restricted to positive potentials) and for the second virial cofficient (with anisotropic interactions) lead to the known classical results when Ii goes to zero. The procedure can be extended to the case of higher virials.
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