1996
DOI: 10.1103/physrevlett.76.2605
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Semiclassical Quantization Using Diffractive Orbits

Abstract: Diffraction, in the context of semiclassical mechanics, describes the manner in which quantum mechanics smooths over discontinuities in the classical mechanics. An important example is a billiard with sharp corners; its semiclassical quantisation requires the inclusion of diffractive periodic orbits in addition to classical periodic orbits. In this paper we construct the corresponding zeta function and apply it to a scattering problem which has only diffractive periodic orbits. We find that the resonances are … Show more

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Cited by 16 publications
(18 citation statements)
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“…Using the GTD approximation the contributions of diffracting orbits were calculated in a number of papers [53,54,55]. These contributions as well as the Berry-Tabor trace formula for the rectangular billiard are derived in this Appendix, for completeness.…”
Section: Appendix A: Diffracting Orbits Contributionsmentioning
confidence: 99%
“…Using the GTD approximation the contributions of diffracting orbits were calculated in a number of papers [53,54,55]. These contributions as well as the Berry-Tabor trace formula for the rectangular billiard are derived in this Appendix, for completeness.…”
Section: Appendix A: Diffracting Orbits Contributionsmentioning
confidence: 99%
“…The cardioid billiard also has re ection symmetry with respect to the x-axis X : (s; p) 7 ! ( s; p): (31) X and T are involutions, i.e. T 2 = id, X 2 = id and det T = 1, det X = 1.…”
Section: Symmetriesmentioning
confidence: 99%
“…In the quantum mechanical billiard problem discontinuities of derivatives of the boundary curve can play an important role (see, e.g. 25,26,27] and 28,29,30,12,31] and references therein). The cusp orbits start at an arbitrary angle in the cusp and eventually return to the cusp with an arbitrary angle without the need to ful ll any re ection condition in the cusp.…”
Section: Finite Orbitsmentioning
confidence: 99%
“…This was also noted in the scattering geometries discussed in Refs. [7,9] where it caused there to be no lower families of quantum resonances. This difference is intimately related to the fact that the Green functions in Eq.…”
Section: Trace Formula For Diffractive Orbitsmentioning
confidence: 99%