Vortex beams of atoms and molecules

  title={Vortex beams of atoms and molecules},
  author={Alon Luski and Yair Segev and R. David and Ora Bitton and Hila Nadler and A Ronny Barnea and Alexey A. Gorlach and Ori Cheshnovsky and Ido Kaminer and Edvardas Narevicius},
  pages={1105 - 1109}
Description Vortex beams of nonelementary particles The discovery of photon and electron vortex beams carrying orbital angular momentum (as a result of a twisting wave front) has led to appreciable advances in optical imaging, optical and electron microscopy, communications, quantum optics and micromanipulation, and more advances are expected. In an effort to extend this progress to other types of beams, Luski et al. demonstrate the production of vortex beams of helium atoms and dimers formed… 
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A quantum vortex made of atoms.
[Figure: see text].


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An atomically thin matter-wave beamsplitter.
It is shown that quantum coherence prevails, even in the limit of atomically thin gratings, which can be seen as a nanomechanical answer to the question debated by Bohr and Einstein of whether a softly suspended double slit would destroy quantum interference.
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