Transient dynamics of coherent waves released from quantum billiards and analogous observation from free-space propagation of laser modes

C. C. Chen, Y. T. Yu, Ross C.C. Chen, Y. J. Huang, Kuan-Wei Su, Yung-Fu Chen, Kai-Feng Huang

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Abstract

The transient dynamics of the eigenstates and coherent states released from a square quantum billiard is analytically and numerically investigated. It is experimentally verified that this transient dynamic can be analogously observed with the free-space propagation of the lasing modes emitted from the laterally confined, vertically emitted cavities. Furthermore, we exploit a chaotically shaped cavity to originally demonstrate the diffraction-in-time characteristics of the chaotic wave functions. It is found that the transient patterns of chaotic wave functions exhibit a striking feature of random branching behavior with the appearance of intricate interference fringes.

Original languageEnglish
Article number044101
JournalPhysical Review Letters
Volume102
Issue number4
DOIs
StatePublished - 26 Jan 2009

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