### Abstract

Language | English |
---|---|

Article number | 033606 |

Number of pages | 9 |

Journal | Physical Review A |

Volume | 87 |

Issue number | 3 |

DOIs | |

Publication status | Published - 5 Mar 2013 |

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### Keywords

- bosonic atoms
- optical lattice
- band-gap frequency

### Cite this

*Physical Review A*,

*87*(3), [033606 ]. https://doi.org/10.1103/PhysRevA.87.033606

}

*Physical Review A*, vol. 87, no. 3, 033606 . https://doi.org/10.1103/PhysRevA.87.033606

**Heating dynamics of bosonic atoms in a noisy optical lattice.** / Pichler, H.; Schachenmayer, J.; Daley, A.J.; Zoller, P.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Heating dynamics of bosonic atoms in a noisy optical lattice

AU - Pichler, H.

AU - Schachenmayer, J.

AU - Daley, A.J.

AU - Zoller, P.

PY - 2013/3/5

Y1 - 2013/3/5

N2 - We analyze the heating of interacting bosonic atoms in an optical lattice due to intensity fluctuations of the lasers forming the lattice. We focus in particular on fluctuations at low frequencies below the band-gap frequency, such that the dynamics is restricted to the lowest band. We derive stochastic equations of motion, and analyze the effects on different many-body states, characterizing heating processes in both strongly and weakly interacting regimes. In the limit where the noise spectrum is flat at low frequencies, we can derive an effective master equation describing the dynamics. We compute heating rates and changes to characteristic correlation functions both in the perturbation theory limit and using a full time-dependent calculation of the stochastic many-body dynamics in one dimension based on time-dependent density-matrix-renormalization-group methods.

AB - We analyze the heating of interacting bosonic atoms in an optical lattice due to intensity fluctuations of the lasers forming the lattice. We focus in particular on fluctuations at low frequencies below the band-gap frequency, such that the dynamics is restricted to the lowest band. We derive stochastic equations of motion, and analyze the effects on different many-body states, characterizing heating processes in both strongly and weakly interacting regimes. In the limit where the noise spectrum is flat at low frequencies, we can derive an effective master equation describing the dynamics. We compute heating rates and changes to characteristic correlation functions both in the perturbation theory limit and using a full time-dependent calculation of the stochastic many-body dynamics in one dimension based on time-dependent density-matrix-renormalization-group methods.

KW - bosonic atoms

KW - optical lattice

KW - band-gap frequency

UR - http://www.scopus.com/inward/record.url?scp=84874918353&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.87.033606

DO - 10.1103/PhysRevA.87.033606

M3 - Article

VL - 87

JO - Physical Review A - Atomic, Molecular, and Optical Physics

T2 - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 3

M1 - 033606

ER -