DOI QR코드

DOI QR Code

ABSOLUTE CONTINUITY OF THE MAGNETIC SCHRÖDINGER OPERATOR WITH PERIODIC POTENTIAL

  • Assel, Rachid (Department of Mathematics, Faculty of Sciences of Monastir, University of Monastir)
  • 투고 : 2018.06.19
  • 심사 : 2018.11.22
  • 발행 : 2018.12.30

초록

We consider the magnetic $Schr{\ddot{o}}dinger$ operator coupled with two different potentials. One of them is a harmonic oscillator and the other is a periodic potential. We give some periodic potential classes for which the operator has purely absolutely continuous spectrum. We also prove that for strong magnetic field or large coupling constant, there are open gaps in the spectrum and we give a lower bound on their number.

키워드

참고문헌

  1. J. Avron and B. Simon, Stability of gaps for periodic potentials under variation of a magnetic field, J. Phys. A: Math. Gen. 18, 1985.
  2. H.L. Cykon, R.G. Froese, G. Kirsch and B. Simon, Schrodinger Operators, with Application to Quantum Mechanics and Global Geometry, Springer-Verlag, New York, 1986.
  3. Ch. Ferrari and N. Macris, Intremixture of extended edge and localized bulk energy levelsin macroscopic Hall systems. J. Phys. A 35 (30) (2002), 6339-6358. https://doi.org/10.1088/0305-4470/35/30/311
  4. N. Filonov and M. Tikhomirov, Absolute continuity of the even periodic Schrodinger operator with nonsmooth coefficients, St Petersboug Math. J. 16 (3), 2015.
  5. N. Filonov, A. Sobolev, On the spectrum of an even Schrodinger operator with a rational magnetic flux, J. Spectral Theory 5 (2), 2015.
  6. P.D. Hislop and I.M. Sigal, Introduction to Spectral Theory, with Applications to Schrodinger Operators, Applied Mathematical Sciences (113), Springer, 1996.
  7. T. Kato, Perturbation theory of linear operators, Springer, Heidelberg, 1966.
  8. E. Mourre, Absence of Singular Continuous Spectrum for Certain Self-adjoint operators, Comm. Math. Phys. 78 (3), 1981.
  9. F. Odeh and Keller J., Partial differential equations with periodic coefficients and Bloch waves in crystals, J. Math. Phys. 5, 1964.
  10. F. W. Olver, Asymptotics and special functions, Computer Science and Applied Mathematics. Academic Press, New York-London, 1974.
  11. M. Reed and B. Simon, Methods of Modern Mathematical Physics, IV, Analysis of Operators, Academic Press, New York, 1978.
  12. L. E. Thomas, Time Dependant Approach to Scattering from Impurities in a Crystal, Com. Math. Phys., 33, 1973.
  13. E.C. Titchmarsh, Eigenfunction Expansions Associated with Second-order Differential Equations, Part I, 2nd edition, Clarendon Press, Oxford, England, 1962.