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Article overview
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Detection of superfluid excitations via local quantum probing | Francesco Cosco
; Massimo Borrelli
; Francesco Plastina
; Sabrina Maniscalco
; | Date: |
3 Nov 2015 | Abstract: | We propose a general and non-destructive probing scheme to detect and
characterize the superfluid excitation spectrum of cold atoms in optical
lattices. The protocol relies on a local collisional interaction between an
embedded impurity and the surrounding atomic ensemble. By tuning a few
controllable external parameters the impurity-lattice interaction can be
engineered and information regarding the dispersion relation of the superfluid
phonons can be reliably extracted. We describe the general theory and provide
an example to show its validity. | Source: | arXiv, 1511.0833 | Services: | Forum | Review | PDF | Favorites |
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