title: η condensate of fermionic atom pairs via adiabatic state preparation.
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.
authors.affiliation: Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria.
authors.forename: A
authors.initials: A
authors.lastname: Kantian
authors.forename: A J
authors.initials: AJ
authors.lastname: Daley
authors.forename: P
authors.initials: P
authors.lastname: Zoller