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Spin-Glass Model Governs Laser Multiple Filamentation

Published in Physical Review Letters. 2015, vol. 115, no. 033902
Abstract We show that multiple filamentation patterns in high-power laser beams, can be described by means of two statistical physics concepts, namely self-similarity of the patterns over two nested scales, and nearest-neighbor interactions of classical rotators. The resulting lattice spin model perfectly reproduces the evolution of intense laser pulses as simulated by the Non-Linear Schr"odinger Equation, shedding a new light on multiple filamentation. As a side benefit, this approach drastically reduces the computing time by two orders of magnitude as compared to the standard simulation methods of laser filamentation.
arXiv: 1505.07041
Note 8 pages, 4 figures
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Research groups ISE Pôle Sciences
ISE Climat
Groupe Wolf
Projects FNS: 200021-155970
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ETTOUMI, Wahb, KASPARIAN, Jérôme, WOLF, Jean-Pierre. Spin-Glass Model Governs Laser Multiple Filamentation. In: Physical Review Letters, 2015, vol. 115, n° 033902. https://archive-ouverte.unige.ch/unige:74168

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Deposited on : 2015-07-15

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