Single-site-and single-atom-resolved measurement of correlation functions

M. Endres, M. Cheneau, T. Fukuhara, C. Weitenberg, P. Schauß, C. Gross, L. Mazza, M. C. Bañuls, L. Pollet, I. Bloch, S. Kuhr

Research output: Contribution to journalArticle

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Abstract

Correlation functions play an important role for the theoretical and experimental characterization of many-body systems. In solid-state systems, they are usually determined through scattering experiments, whereas in cold gases systems, time-of-flight, and in situ absorption imaging are the standard observation techniques. However, none of these methods allow the in situ detection of spatially resolved correlation functions at the single-particle level. Here, we give a more detailed account of recent advances in the detection of correlation functions using in situ fluorescence imaging of ultracold bosonic atoms in an optical lattice. This method yields single-site- and single-atom-resolved images of the lattice gas in a single experimental run, thus gaining direct access to fluctuations in the many-body system. As a consequence, the detection of correlation functions between an arbitrary set of lattice sites is possible. This enables not only the detection of two-site correlation functions but also the evaluation of non-local correlations, which originate from an extended region of the system and are used for the characterization of quantum phases that do not possess (quasi-)long-range order in the traditional sense.
LanguageEnglish
Pages27-39
Number of pages13
JournalApplied Physics B: Lasers and Optics
Volume113
Issue number1
Early online date2 Aug 2013
DOIs
Publication statusPublished - Oct 2013

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atoms
cold gas
solid state
fluorescence
evaluation
scattering
gases

Keywords

  • correlation function
  • experimental characterization
  • in-situ absorption
  • in-situ detections
  • observation techniques
  • situ fluorescence imaging
  • solid-state system
  • spatially resolved

Cite this

Endres, M. ; Cheneau, M. ; Fukuhara, T. ; Weitenberg, C. ; Schauß, P. ; Gross, C. ; Mazza, L. ; Bañuls, M. C. ; Pollet, L. ; Bloch, I. ; Kuhr, S. / Single-site-and single-atom-resolved measurement of correlation functions. In: Applied Physics B: Lasers and Optics. 2013 ; Vol. 113, No. 1. pp. 27-39.
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Endres, M, Cheneau, M, Fukuhara, T, Weitenberg, C, Schauß, P, Gross, C, Mazza, L, Bañuls, MC, Pollet, L, Bloch, I & Kuhr, S 2013, 'Single-site-and single-atom-resolved measurement of correlation functions' Applied Physics B: Lasers and Optics, vol. 113, no. 1, pp. 27-39. https://doi.org/10.1007/s00340-013-5552-9

Single-site-and single-atom-resolved measurement of correlation functions. / Endres, M.; Cheneau, M.; Fukuhara, T.; Weitenberg, C.; Schauß, P.; Gross, C.; Mazza, L.; Bañuls, M. C.; Pollet, L.; Bloch, I.; Kuhr, S.

In: Applied Physics B: Lasers and Optics, Vol. 113, No. 1, 10.2013, p. 27-39.

Research output: Contribution to journalArticle

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AU - Gross, C.

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AU - Kuhr, S.

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Endres M, Cheneau M, Fukuhara T, Weitenberg C, Schauß P, Gross C et al. Single-site-and single-atom-resolved measurement of correlation functions. Applied Physics B: Lasers and Optics. 2013 Oct;113(1):27-39. https://doi.org/10.1007/s00340-013-5552-9