Nous construisons une -algèbre adaptée au traitement des systèmes quantiques anisotropes asymptotiquement périodiques et nous calculons son quotient par l'algèbre des opérateurs compacts. Nous décrivons alors les opérateurs auto-adjoints affiliés à et leurs spectres essentiels.
We construct a -algebra proper to an anisotropic asymptotically periodic quantum system and we compute its quotient by the algebra of compact operators. We describe then the self-adjoint operators affiliated to and their essential spectrum.
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@article{CRMATH_2002__334_7_575_0, author = {Rodot, Olivier}, title = {On a class of anisotropic asymptotically periodic {Hamiltonians}}, journal = {Comptes Rendus. Math\'ematique}, pages = {575--579}, publisher = {Elsevier}, volume = {334}, number = {7}, year = {2002}, doi = {10.1016/S1631-073X(02)02301-4}, language = {en}, url = {http://archive.numdam.org/articles/10.1016/S1631-073X(02)02301-4/} }
TY - JOUR AU - Rodot, Olivier TI - On a class of anisotropic asymptotically periodic Hamiltonians JO - Comptes Rendus. Mathématique PY - 2002 SP - 575 EP - 579 VL - 334 IS - 7 PB - Elsevier UR - http://archive.numdam.org/articles/10.1016/S1631-073X(02)02301-4/ DO - 10.1016/S1631-073X(02)02301-4 LA - en ID - CRMATH_2002__334_7_575_0 ER -
%0 Journal Article %A Rodot, Olivier %T On a class of anisotropic asymptotically periodic Hamiltonians %J Comptes Rendus. Mathématique %D 2002 %P 575-579 %V 334 %N 7 %I Elsevier %U http://archive.numdam.org/articles/10.1016/S1631-073X(02)02301-4/ %R 10.1016/S1631-073X(02)02301-4 %G en %F CRMATH_2002__334_7_575_0
Rodot, Olivier. On a class of anisotropic asymptotically periodic Hamiltonians. Comptes Rendus. Mathématique, Tome 334 (2002) no. 7, pp. 575-579. doi : 10.1016/S1631-073X(02)02301-4. http://archive.numdam.org/articles/10.1016/S1631-073X(02)02301-4/
[1] Über die Quantenmechanik der Elektronen in Kristallgittern, Z. Phys., Volume 52 (1928), pp. 555-600
[2] M. Damak, V. Georgescu, -algebras related to the N-body problem and the self-adjoint operators affiliated to them, available as preprint 99-482 at http://www.ma.utexas.edu/mp_arc/
[3] Scattering theory for systems with different spatial asymptotics on the left and right, Comm. Math. Phys., Volume 63 (1978), pp. 277-301
[4] Expansion in eigenfunctions of an equation with periodic coefficients, Dokl. Akad. Nauk SSSR, Volume 73 (1950), pp. 1117-1120 (in Russian)
[5] V. Georgescu, A. Iftimovici, -algebras and spectral analysis of quantum systems, in: Proceedings of the OAMP Conference, Constanta, 2001, to appear
[6] V. Georgescu, A. Iftimovici, -algebras of energy observables, Preprint 9/2001, Université de Cergy-Pontoise, pp. 1–120, also available at http://www.ma.utexas.edu/mp_arc
[7] Scattering for step-periodic potentials in one dimension, J. Math. Phys., Volume 31 (1990) no. 9, pp. 2181-2191
[8] Eigenfunction Expansions Associated with Second Order Differential Equations, Clarendon Press, Oxford, 1962
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