Controllability and indistinguishability in coherent control.
Contributors: University of Toronto.  Dept. of Chemistry.
Published: 2004
Language: eng
Number of pages: 142
Description: We calculate the controllability, purity, and indistinguishability for two model systems: a double well linearly coupled to a bath of two of harmonic oscillators, and a system of two harmonic oscillators linearly coupled to a bath of N harmonic oscillators initially in thermal equilibrium. In both cases we find that the indistinguishability of the excitation pathway in the bath provides a good measure of the controllability, while the purity does not. However, in the case of the large bath, more work remains in understanding the relationship between controllability and indistinguishability when the bath is initially mixed.The relationship between the coherent controllability of a quantum system in the presence of a bath and the ability of the bath to distinguish between alternate excitation pathways is investigated. The central idea is that if the bath can somehow determine the excitation pathway then quantum control of the system becomes impossible.
Notes: Adviser:  Paul Brumer.

Thesis (M.Sc.)--University of Toronto, 2004.

Electronic version licensed for access by U. of T. users.

Source: Masters Abstracts International, Volume: 43-03, page: 0857.

MICR copy on microfiche (2 microfihes).