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Optical detection of a fractional particle number in an atomic Fermi-Dirac gas

Optical detection of a fractional particle number in an atomic Fermi-Dirac gas
Optical detection of a fractional particle number in an atomic Fermi-Dirac gas
We consider a Fermi-Dirac atomic gas in a one-dimensional optical lattice coupled to a coherent electromagnetic field with a topologically nontrivial soliton phase profile. We argue that the resulting fractional eigenvalues of the particle number operator can be detected via light scattering. This could be a truly quantum mechanical measurement of the particle number fractionalization in a dilute atomic gas.
fermion systems, light scattering, eigenvalues and eigenfunctions, optical solitons, electromagnetic fields, measurement theory, quasiparticles
0031-9007
150404-[4pp]
Javanainen, Juha
ae127878-c1cf-4e23-bebb-c3ec76b61081
Ruostekoski, Janne
2beb155e-64b0-4ee9-9cfe-079947a9c9f4
Javanainen, Juha
ae127878-c1cf-4e23-bebb-c3ec76b61081
Ruostekoski, Janne
2beb155e-64b0-4ee9-9cfe-079947a9c9f4

Javanainen, Juha and Ruostekoski, Janne (2003) Optical detection of a fractional particle number in an atomic Fermi-Dirac gas. Physical Review Letters, 91 (15), 150404-[4pp]. (doi:10.1103/PhysRevLett.91.150404).

Record type: Article

Abstract

We consider a Fermi-Dirac atomic gas in a one-dimensional optical lattice coupled to a coherent electromagnetic field with a topologically nontrivial soliton phase profile. We argue that the resulting fractional eigenvalues of the particle number operator can be detected via light scattering. This could be a truly quantum mechanical measurement of the particle number fractionalization in a dilute atomic gas.

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More information

Published date: October 2003
Keywords: fermion systems, light scattering, eigenvalues and eigenfunctions, optical solitons, electromagnetic fields, measurement theory, quasiparticles

Identifiers

Local EPrints ID: 29353
URI: http://eprints.soton.ac.uk/id/eprint/29353
ISSN: 0031-9007
PURE UUID: cfe15fd5-87c6-4d27-a37f-a622a2c462f7

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Date deposited: 12 May 2006
Last modified: 09 Nov 2021 07:44

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Contributors

Author: Juha Javanainen

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