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Title

Lattice-Assisted Spectroscopy: A Generalized Scanning Tunneling Microscope for Ultracold Atoms

Authors
Kantian, A.
Schollwöck, U.
Published in Physical Review Letters. 2015, vol. 115, no. 16, p. 165301
Abstract We propose a scheme to measure the frequency-resolved local particle and hole spectra of any optical lattice-confined system of correlated ultracold atoms that offers single-site addressing and imaging, which is now an experimental reality. Combining perturbation theory and time-dependent density matrix renormalization group simulations, we quantitatively test and validate this approach of lattice-assisted spectroscopy on several one-dimensional example systems, such as the superfluid and Mott insulator, with and without a parabolic trap, and finally on edge states of the bosonic Su-Schrieffer-Heeger model. We highlight extensions of our basic scheme to obtain an even wider variety of interesting and important frequency resolved spectra.
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Research group Groupe Giamarchi
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KANTIAN, A., SCHOLLWÖCK, U., GIAMARCHI, Thierry. Lattice-Assisted Spectroscopy: A Generalized Scanning Tunneling Microscope for Ultracold Atoms. In: Physical Review Letters, 2015, vol. 115, n° 16, p. 165301. https://archive-ouverte.unige.ch/unige:87806

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Deposited on : 2016-09-27

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