Condensed Matter Theory

Kirsten Stiebler et.al.: Spatial two-particle NOON-states in periodically shaken three-well potentials

Author(s): Kirsten Stiebler, Bettina Gertjerenken, Niklas Teichmann, Christoph Weiss

Title:
Spatial two-particle NOON-states in periodically shaken three-well potentials

Date of Upload:
2011-02-28

Article: J. Phys. B: At. Mol. Opt. Phys. 44 055301 (2011), IOP

Keywords:

PACS: 03.65.Yz, 02.50.Cw, 05.30.-d

Abstract:
Few-particle dynamics in a three-well potential are investigated numerically. It is shown that periodically shaking the potential can considerably increase the fidelity of emerging spatial quantum superpositions. Such NOON-states are important for quantum interferometry. If the two particles initially sit in the middle well, the probability to return to this state can distinguish pure quantum dynamics from statistical mixtures. The numeric implementation of decoherence via particle losses shows clear differences from the pure quantum behaviour. A three-well lattice could be an ideal system for experimental realizations.

DOI: 10.1088/0953-4075/44/5/055301


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