# Direct observation of zitterbewegung in a Bose–Einstein condensate

@article{LeBlanc2013DirectOO, title={Direct observation of zitterbewegung in a Bose–Einstein condensate}, author={Lindsay J. LeBlanc and Matthew C. Beeler and Karina Jim{\'e}nez-Garc{\'i}a and Abigail R. Perry and Seiji Sugawa and R. A. Williams and I. B. Spielman}, journal={New Journal of Physics}, year={2013}, volume={15} }

Zitterbewegung, a force-free trembling motion first predicted for relativistic fermions like electrons, was an unexpected consequence of the Dirac equation's unification of quantum mechanics and special relativity. Though the oscillatory motion's large frequency and small amplitude have precluded its measurement with electrons, zitterbewegung is observable via quantum simulation. We engineered an environment for 87Rb Bose–Einstein condensates where the constituent atoms behaved like…

## 140 Citations

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Although zitterbewegung -- the jittery motion of relativistic particles -- is known since 1930 and was predicted in solid state systems long ago, it has been directly measured so far only in…

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We show that the dynamics of an interacting atomic gas with light-induced gauge potential can be effectively described by a one-dimensional nonlinear spinor Dirac-type equation. Then, it is possible…

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A surprisingly large ZB effect on charge transport in a semiconductor nanostructure playing “flat pinball” is reported, confirming that ZB causes this conductance fluctuation that depends on the in-plane magnetic field.

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