Cold atom dynamics in a quantum optical lattice potential.

@article{Maschler2005ColdAD,
  title={Cold atom dynamics in a quantum optical lattice potential.},
  author={Christoph Maschler and Helmut Ritsch},
  journal={Physical review letters},
  year={2005},
  volume={95 26},
  pages={260401}
}
We study a generalized cold atom Bose-Hubbard model, where the periodic optical potential is formed by a cavity field with quantum properties. On the one hand, the common coupling of all atoms to the same mode introduces cavity-mediated long-range atom-atom interactions, and, on the other hand, atomic backaction on the field introduces atom-field entanglement. This modifies the properties of the associated quantum phase transitions and allows for new correlated atom-field states, including… CONTINUE READING

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