Antiferromagnetic noise correlations in optical lattices

Georg Morten Bruun, Niels Bohr International Academy, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark; F. T. Syljuåsen; K. G. L. Pedersen; Brian Møller Andersen; E. Demler; Anders Søndberg Sørensen

doi:10.1103/PhysRevA.80.033622

Antiferromagnetic noise correlations in optical lattices

Georg Morten Bruun, Niels Bohr International Academy, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark, F. T. Syljuåsen, K. G. L. Pedersen, Brian Møller Andersen, E. Demler, Anders Søndberg Sørensen

14 Citationer (Scopus)

Abstract

Weanalyze how noise correlations probed by time-of-flight experiments reveal antiferromagnetic(AF) correlations of fermionic atoms in two-dimensional and three-dimensional opticallattices. Combining analytical and quantum Monte Carlo calculations using experimentallyrealistic parameters, we show that AF correlations can be detectedfor temperatures above and below the critical temperature for AFordering. It is demonstrated that spin-resolved noise correlations yield importantinformation about the spin ordering. Finally, we show how toextract the spin correlation length and the related critical exponentof the AF transition from the noise
Udgivelsesdato: September 18

Originalsprog	Engelsk
Tidsskrift	Physical Review A (Atomic, Molecular and Optical Physics)
Vol/bind	80
Udgave nummer	3
Sider (fra-til)	033622
Antal sider	5
ISSN	2469-9926
DOI	https://doi.org/10.1103/PhysRevA.80.033622
Status	Udgivet - 23 sep. 2009

Adgang til dokumentet

10.1103/PhysRevA.80.033622

Citationsformater

Bruun, Niels Bohr International Academy, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark, G. M., Syljuåsen, F. T., Pedersen, K. G. L., Andersen, B. M., Demler, E., & Sørensen, A. S. (2009). Antiferromagnetic noise correlations in optical lattices. Physical Review A (Atomic, Molecular and Optical Physics), 80(3), 033622. https://doi.org/10.1103/PhysRevA.80.033622

Antiferromagnetic noise correlations in optical lattices. / Bruun, Niels Bohr International Academy, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark, Georg Morten; Syljuåsen, F. T.; Pedersen, K. G. L. et al.

I: Physical Review A (Atomic, Molecular and Optical Physics), Bind 80, Nr. 3, 23.09.2009, s. 033622.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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author = "{Bruun, Niels Bohr International Academy, University of Copenhagen, DK-2100 Copenhagen {\O}, Denmark}, {Georg Morten} and Sylju{\aa}sen, {F. T.} and Pedersen, {K. G. L.} and Andersen, {Brian M{\o}ller} and E. Demler and S{\o}rensen, {Anders S{\o}ndberg}",

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AU - Bruun, Niels Bohr International Academy, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark, Georg Morten

AU - Syljuåsen, F. T.

AU - Pedersen, K. G. L.

AU - Andersen, Brian Møller

AU - Demler, E.

AU - Sørensen, Anders Søndberg

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N2 - We analyze how noise correlations probed by time-of-flight experiments reveal antiferromagnetic (AF) correlations of fermionic atoms in two-dimensional and three-dimensional optical lattices. Combining analytical and quantum Monte Carlo calculations using experimentally realistic parameters, we show that AF correlations can be detected for temperatures above and below the critical temperature for AF ordering. It is demonstrated that spin-resolved noise correlations yield important information about the spin ordering. Finally, we show how to extract the spin correlation length and the related critical exponent of the AF transition from the noise Udgivelsesdato: September 18

AB - We analyze how noise correlations probed by time-of-flight experiments reveal antiferromagnetic (AF) correlations of fermionic atoms in two-dimensional and three-dimensional optical lattices. Combining analytical and quantum Monte Carlo calculations using experimentally realistic parameters, we show that AF correlations can be detected for temperatures above and below the critical temperature for AF ordering. It is demonstrated that spin-resolved noise correlations yield important information about the spin ordering. Finally, we show how to extract the spin correlation length and the related critical exponent of the AF transition from the noise Udgivelsesdato: September 18

U2 - 10.1103/PhysRevA.80.033622

DO - 10.1103/PhysRevA.80.033622

M3 - Journal article

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