η condensate of fermionic atom pairs via adiabatic state preparation

Kantian, A. and Daley, Andrew and Zoller, P. (2010) η condensate of fermionic atom pairs via adiabatic state preparation. Physical Review Letters, 104 (24). ISSN 0031-9007

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    Abstract

    We discuss how an η condensate, corresponding to an exact excited eigenstate of the Fermi-Hubbard model, can be produced with cold atoms in an optical lattice. Using time-dependent density matrix renormalization group methods, we analyze a state preparation scheme beginning from a band insulator state in an optical superlattice. This state can act as an important test case, both for adiabatic preparation methods and the implementation of the many-body Hamiltonian, and measurements on the final state can be used to help detect associated errors.