Field-theoretical model inspired by adiabatic-ansatz eigenvalue problems

Nakamura, K. ; Lakshmanan, M. ; Gaspard, P. ; Rice, S. A. (1992) Field-theoretical model inspired by adiabatic-ansatz eigenvalue problems Physical Review A, 46 (10). pp. 6311-6314. ISSN 1050-2947

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Official URL: http://link.aps.org/doi/10.1103/PhysRevA.46.6311

Related URL: http://dx.doi.org/10.1103/PhysRevA.46.6311

Abstract

We suggest an insight into level dynamics of classically nonintegrable quantum systems. When several nonintegrability parameters are varied in a Hamiltonian, the desymmetrized energy spectrum generally exhibits degeneracies. In this case the fundamental equation of level dynamics is altered as follows: (i) Euclidean "space-time" coordinates are needed instead of a single "time" coordinate; (ii) gauge structures around diabolical degenerate points are incorporated into level dynamics. With these changes we obtain an alternative field-theoretical model for interacting energy surfaces.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:19616
Deposited On:22 Nov 2010 12:18
Last Modified:07 Jun 2011 07:07

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