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arXiv quant-ph/9906044quant-phcond-mathep-th
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新的可解和拟精确可解周期势

New Solvable and Quasi Exactly Solvable Periodic Potentials

Avinash Khare, Uday Sukhatme

摘要:

利用超对称量子力学的形式,我们得到了大量新的解析可解的一维周期势,并研究了它们的性质。更具体地说,我们计算了拉梅势ma(a+1)sn ^2(x,m)在整数值a= 1,2,3,.时的超对称对。对于所有的情况(除了a=1),我们表明,伙伴势是明显不同于原来的拉梅势,即使他们都有相同的能量能带结构。我们还导出并讨论了相应的拉梅势pmsn^2(x,m)+qmcn^2(x,m)/ dn^2(x,m)的能带边,它们构成了更丰富的一类周期问题.计算他们的超对称伙伴产生了许多额外的新的可解和准精确可解周期势。

英文摘要:

Using the formalism of supersymmetric quantum mechanics, we obtain a large number of new analytically solvable one-dimensional periodic potentials and study their properties. More specifically, the supersymmetric partners of the Lame potentials ma(a+1)sn^2(x,m) are computed for integer values a=1,2,3,.... For all cases (except a=1), we show that the partner potential is distinctly different from the original Lame potential, even though they both have the same energy band structure. We also derive and discuss the energy band edges of the associated Lame potentials pm sn^2(x,m)+qm cn^2(x,m)/ dn^2(x,m), which constitute a much richer class of periodic problems. Computation of their supersymmetric partners yields many additional new solvable and quasi exactly solvable periodic potentials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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