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Generalized geometric phase of a classical oscillator

K Yu Bliokh

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The equation of a linear oscillator with adiabatically varying eigenfrequency ω(εt) (ε ll 1 is the adiabaticity parameter) is considered. The asymptotic solutions to the equation have been obtained to terms of order ε3. It is shown that imaginary terms of order ε2 form a generalized geometric phase determined by the geometry of the system's contour in the plane (ω, ω'). The real terms of orders ε and ε3, as predicted (Bliokh K Yu 2002 J. Math. Phys. 43 5624), do not form geometric amplitudes but are responsible for local relationships between the solution amplitudes and the parameters, that is, for adiabatic invariants.


PACS

03.65.Vf Phases: geometric; dynamic or topological

MSC

81Q70 Differential-geometric methods, including holonomy, Berry and Hannay phases, etc.

Subjects

Quantum information and quantum mechanics

Dates

Issue 6 (14 February 2003)

Received 16 August 2002, in final form 29 November 2002

Published 29 January 2003



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