# Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms

@article{Greiner2002QuantumPT, title={Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms}, author={Markus Greiner and Olaf Mandel and Tilman Esslinger and Theodor W. H{\"a}nsch and Immanuel Bloch}, journal={Nature}, year={2002}, volume={415}, pages={39-44} }

For a system at a temperature of absolute zero, all thermal fluctuations are frozen out, while quantum fluctuations prevail. These microscopic quantum fluctuations can induce a macroscopic phase transition in the ground state of a many-body system when the relative strength of two competing energy terms is varied across a critical value. Here we observe such a quantum phase transition in a Bose–Einstein condensate with repulsive interactions, held in a three-dimensional optical lattice… Expand

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Ultracold quantum gases in three-dimensional optical lattice potentials

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In this thesis I report on experiments that enter a new regime in
the many body physics of ultracold atomic gases. A Bose-Einstein
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Single atom–single lattice site imaging is used to investigate the Bose-Hubbard model on a microscopic level and enables space- and time-resolved characterization of the number statistics across the superfluid–Mott insulator quantum phase transition. Expand

Quantum phase transition from a superfluid to a Mott insulator in an ultracold gas of atoms

- Physics
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Abstract A quantum phase transition from a superfluid to a Mott insulating ground state was observed in a Bose–Einstein condensate stored in a three-dimensional optical lattice potential. With this… Expand

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