Phase Sensitive Measurements of Order Parameters for Ultracold Atoms through Two Particles Interferometry

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Phase Sensitive Measurements of Order Parameters for Ultracold Atoms through Two Particles Interferometry

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Title: Phase Sensitive Measurements of Order Parameters for Ultracold Atoms through Two Particles Interferometry
Author: Aspect, Alain; Greiner, Markus; Kitagawa, Takuya; Demler, Eugene A.

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Citation: Kitagawa, Takuya, Alain Aspect, Markus Greiner, and Eugene Demler. 2011. Phase sensitive measurements of order parameters for ultracold atoms through two particles interferometry. Physical Review Letters 106: 115302.
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Abstract: Nontrivial symmetry of order parameters is crucial in some of the most interesting quantum many-body states of ultracold atoms and condensed matter systems. Examples in cold atoms include p-wave Feshbach molecules and d-wave paired states of fermions that could be realized in optical lattices in the Hubbard regime. Identifying these states in experiments requires measurements of the relative phase of different components of the entangled pair wavefunction. We propose and discuss two schemes for such phase sensitive measurements, based on two-particle interference revealed in atom-atom or atomic density correlations. Our schemes can also be used for relative phase measurements for non-trivial particle-hole order parameters, such as d-density wave order.
Published Version: doi:10.1103/PhysRevLett.106.115302
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:11213394
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