Large portions of Chapters 3 and 4, as well as some of Sections 2.3 and 6.1.2 have appeared in the following two papers:

``Deformations and dilations of chaotic billiards: dissipation rate, and quasi-orthogonality of the boundary wavefunctions'', A. H. Barnett, D. Cohen, and E. J. Heller, Phys. Rev. Lett.The numerical methods of Chapter 6 were used to calculate data appearing in the above papers and in the following:85, 1412 (2000),nlin.CD/0003018;

``Rate of energy absorption for a driven chaotic cavity'', A. H. Barnett, D. Cohen, and E. J. Heller, submitted to J. Phys. A,nlin.CD/0006041.

``Parametric evolution for a deformed cavity'', D. Cohen, A. H. Barnett, W. Bies, and E. J. Heller, submitted to Phys. Rev. E,Chapter 7 appears in its entirety asnlin.CD/0008040.

``Mesoscopic scattering in the half-plane: how much conductance can you squeeze through a small hole?'', A. H. Barnett, M. Blaauboer, A. Mody, and E. J. Heller, submitted to Phys. Rev. B,Finally, most of Chapter 8 has been published ascond-mat/0008279.

``Substrate-based atom waveguide using guided two-color evanescent light fields'', A. H. Barnett, S. P. Smith, M. Olshanii, K. S. Johnson, A. W. Adams, M. Prentiss, Phys. Rev. AElectronic preprints (shown in61, 023608 (2000),physics/9907014.

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