Realization of dynamical group for a symmetric well potential tan 2(πrx/a) and its controllability

Shi Hai Dong, M. Lozada-Cassou, Marco A. Arjona L

Research output: Contribution to journalArticlepeer-review

Abstract

The exact solutions of quantum system with a symmetric well potential V(x) = D tan2 (πx/a) are obtained. The ladder operators are constructed directly from the normalized eigenfunctions with the factorization method. It is shown that these ladder operators satisfy the commutation relations of the generators for an su(1, 1) algebra. The infinitely deep square well and harmonic limits of this potential are briefly studied. The controllability of this system is also investigated. It is demonstrated that this system with discrete bound states can be strongly completely controlled. This may be realized theoretically by acting the creation operator K̂+ on the ground state.

Original languageEnglish
Pages (from-to)5833-5843
Number of pages11
JournalInternational Journal of Modern Physics A
Volume21
Issue number28-29
DOIs
StatePublished - 20 Nov 2006

Keywords

  • Controllability
  • Factorization method
  • Ladder operators, su(1, 1) algebra

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