Emulating solid-state physics with a hybrid system of ultracold ions and atoms

Bissbort, U., Cocks, D., Negretti, A., Idziaszek, Z., Calarco, T., Schmidt-Kaler, F., Hofstetter, W., and Gerritsma, R. (2013) Emulating solid-state physics with a hybrid system of ultracold ions and atoms. Physical Review Letters , 111. 080501.

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Abstract

We propose and theoretically investigate a hybrid system composed of a crystal of trapped ions coupled to a cloud of ultracold fermions. The ions form a periodic lattice and induce a band structure in the atoms. This system combines the advantages of high fidelity operations and detection offered by trapped ion systems with ultracold atomic systems. It also features close analogies to natural solid-state systems, as the atomic degrees of freedom couple to phonons of the ion lattice, thereby emulating a solid-state system. Starting from the microscopic many-body Hamiltonian, we derive the low energy Hamiltonian, including the atomic band structure, and give an expression for the atom-phonon coupling. We discuss possible experimental implementations such as a Peierls-like transition into a period-doubled dimerized state.

Item ID: 34731
Item Type: Article (Research - C1)
ISSN: 1079-7114
Funders: German Research Foundation (DFG), European Union (EU)
Projects and Grants: DFG SFB-TR/49, DFG SFB-TR/21, DFG FOR 801, EU Project PICC, EU Project SIQS
Date Deposited: 21 Aug 2014 04:56
FoR Codes: 02 PHYSICAL SCIENCES > 0204 Condensed Matter Physics > 020499 Condensed Matter Physics not elsewhere classified @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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