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Classical Simulation of Relativistic Zitterbewegung in Photonic Lattices

 
: Dreisow, F.; Heinrich, M.; Keil, R.; Tünnermann, A.; Nolte, S.; Longhi, S.; Szameit, A.

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Physical review letters 105 (2010), Nr.14, Art. 143902, 4 S.
ISSN: 0031-9007
ISSN: 1079-7114
Englisch
Zeitschriftenaufsatz
Fraunhofer IOF ()
wave-guide array; optical bloch oscillation

Abstract
We present the first experimental realization of an optical analog for relativistic quantum mechanics by simulating the Zitterbewegung (trembling motion) of a free Dirac electron in an optical superlattice. Our photonic setting enables a direct visualization of Zitterbewegung as a spatial oscillatory motion of an optical beam. Direct measurements of the wave packet expectation values in superlattices with tuned miniband gaps clearly show the transition from weak-relativistic to relativistic and far-relativistic regimes.

: http://publica.fraunhofer.de/dokumente/N-143399.html