Abstract
We study the Schrödinger operator H = −Δ + V(x) in dimension two, V(x) being a limit-periodic potential. We prove that the spectrum of H contains a semiaxis, and there is a family of generalized eigenfunctions at every point of this semiaxis with the following properties. First, the eigenfunctions are close to plane waves exp(\(i\left\langle {\overrightarrow k ,\overrightarrow x } \right\rangle \)) at the high energy region. Second, the isoenergetic curves in the space of momenta \(\overrightarrow k \) corresponding to these eigenfunctions have the form of slightly distorted circles with holes (Cantor type structure). Third, the spectrum corresponding to the eigenfunctions (the semiaxis) is absolutely continuous.
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References
J. Avron and B. Simon, Almost periodic Schrödinger operators I. Limit periodic potentials, Comm. Math. Physics 82 (1981), 101–120.
J. Avron and B. Simon, Transient and recurrent spectrum, J. Funct. Anal. 43 (1981), 1–31.
J. Avron and B. Simon, Almost periodic Schrödinger operators II. The integrated density of states, Duke Math. J. 50 (1983), 369–391.
J. Bourgain, Quasi-periodic solutions of Hamiltonian perturbations of 2D linear Schrödinger equation, Ann. of Math. (2) 148 (1998), 363–439.
Yu. P. Chuburin, On the multidimensional discrete Schrödinger equation with a limit-periodic potential, Theoret. and Math. Phys. 102 (1995), 53–59.
V. A. Chulaevskiĭ, On perturbation of a Schrödinger operator with periodic potential, Russian Math. Surv. 36(5) (1981), 143–144.
D. Damanik and Zh. Gan, Spectral properties of limit-periodic Schrödinger operators, Commun. Pure Appl. Anal. 10 (2011), 859–871.
G. Gallavotti, Perturbation theory for classical Hamiltonian systems, Scaling and Self-Similarity in Physics, Birkhäuser Boston, Boston, MA, 1983, pp. 359–426.
I.M. Gel'fand, Expansion in eigenfunctions of an equation with periodic coefficients, Dokl. Akad. Nauk SSSR 73 (1950), 1117–1120.
Yu. Karpeshina, Perturbation Theory for the Schrödinger Operator with a Periodic Potential, Lecture Notes in Math. 1663, Springer, Berlin, 1997.
Yu. E. Karpeshina, On the density of states for a periodic Schrödinger operator, Ark. Mat. 38 (2000), 111–137.
Yu. Karpeshina and Y. R. Lee, Spectral properties of polyharmonic operators with limit-periodic potential in dimension two, J. Anal. Math. 102 (2007), 225–310.
Yu. Karpeshina and Y. R. Lee, Absolutely continuous spectrum of a polyharmonic operator with a limit periodic potential in dimension two, Comm. Partial Differential Equations, 33 (2008), 1711–1728.
Yu. Karpeshina and Y. R. Lee, Spectral properties of a limit-periodic Schrdinger operator in dimension two, arXiv:1008.4632 [math-ph].
E. Krätzel, Lattice Points, Kluwer Academic Publishers Group, Dordrecht, 1988.
S. A. Molchanov and V. A. Chulaevskii, Structure of the spectrum of lacunary limit-periodic Schrödinger operator, Funct. Anal. Appl. 18 (1984), 343–344.
J. Moser, An example of the Schroedinger equation with almost-periodic potential and nowhere dense spectrum, Comment. Math. Helv. 56 (1981), 198–224.
L. Parnovski and R. Shterenberg Complete asymptotic expansion of the integrated density of states of multidimensional almost-periodic Schrodinger operators, Ann. of Math. (2) 176 (2012), 1039–1096.
L. A. Pastur and A. Figotin, Spectra of Random and Almost-Periodic Operators, Springer-Verlag, Berlin, 1992.
L. A. Pastur and V. A. Tkachenko, On the spectral theory of the one-dimensional Schrödinger operator with limit-periodic potential, Dokl. Akad. Nauk SSSR 279 (1984), 1050–1053; Engl. transl.: Soviet Math. Dokl. 30 (1984), 773–776.
L. A. Pastur and V. A. Tkachenko, Spectral theory of a class of one-dimensional Schrödinger operators with limit-periodic potentials, Trans. Moscow Math. Soc. 51 (1989), 115–166.
M. Reed and B. Simon, Methods of Modern Mathematical Physics, Vol. IV, 3rd ed., Academic Press, 1987.
G. V. Rozenblum, M. A. Shubin and M. Z. Solomyak, Spectral Theory of Differential Operators, Springer, Berlin, 1994.
A. V. Savin, Asymptotic expansion of the density of states for one-dimensional Schrödinger and Dirac operators with almost periodic and random potentials Sb. Nauchn. Trr. I.F.T.P., Moscow, 1988.
D. Shenk and M. Shubin Asymptotic expansion of the state density and the spectral function of the Hill operator Math. USSR-Sb. 56 (1987), 492–515.
M. A. Shubin The density of states for selfadjoint elliptic operators with almost periodic coefficients. Trudy Sem. Petrovsk. 3 (1978), 243–275.
M. A. Shubin, Spectral theory and index of elliptic operators with almost periodic coefficients, Russ. Math. Surveys 34(2) (1979), 109–158.
B. Simon, Almost periodic Schrödinger operators: A review, Adv. in Appl. Math. 3 (1982), 463–490.
M. M. Skriganov and A. V. Sobolev, On the spectrum of polyharmonic operators with limit-periodic potentials, Algebra i Analiz 17 (2005), 164–189; Eng. transl.: St. Petersburg Math. J. 17 (2006), 815–833.
L. E. Thomas and S. R. Wassel, Semiclassical approximation for Schrödinger operators at high energy, Schroödinger Operators. The Quantum Mechanical Many-Body Problem, Lecture Notes in Physics 403, Springer-Verlag, 1992, pp. 194–210.
L. E. Thomas and S. R. Wassel, Stability of Hamiltonian systems at high energy, J. Math. Phys. 33 (1992), 3367–3373.
L. Zelenko, On a generic topological structure of the spectrum to one-dimensional Schrödinger operators with complex limit-periodic potentials, Integral Equations Operator Theory, 50 (2004), 393–430.
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Supported in part by NSF grant DMS-1201048.
Supported by the National Research Foundation of Korea (NRF)-grant 2009-0064945.
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Karpeshina, Y., Lee, YR. Spectral properties of a limit-periodic Schrödinger operator in dimension two. JAMA 120, 1–84 (2013). https://doi.org/10.1007/s11854-013-0014-1
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DOI: https://doi.org/10.1007/s11854-013-0014-1