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Open Quantum Systems Decoherence Quantum Simulation

Observation of subdiffusion of a disordered interacting system

arXiv
Authors: E. Lucioni, B. Deissler, L. Tanzi, G. Roati, M. Modugno, M. Zaccanti, M. Larcher, F. Dalfovo, M. Inguscio, G. Modugno

Year

2010

Paper ID

10487

Status

Preprint

Abstract Read

~2 min

Abstract Words

86

Citations

N/A

Abstract

We study the transport dynamics of matter-waves in the presence of disorder and nonlinearity. An atomic Bose-Einstein condensate that is localized in a quasiperiodic lattice in the absence of atom-atom interaction shows instead a slow expansion with a subdiffusive behavior when a controlled repulsive interaction is added. The measured features of the subdiffusion are compared to numerical simulations and a heuristic model. The observations confirm the nature of subdiffusion as interaction-assisted hopping between localized states and highlight a role of the spatial correlation of the disorder.

Why This Paper Matters

  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
  • It adds a 2010 reference point for readers tracking recent quantum research.
  • We study the transport dynamics of matter-waves in the presence of disorder and nonlinearity.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1011.2362 [2] arXiv https://arxiv.org/abs/1011.2362 [3] Publisher https://arxiv.org/abs/1011.2362

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