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Modulation Spectroscopy and Dynamics of Double Occupancies in a Fermionic Mott Insulator
(American Physical Society, 2009)
We calculate the rate of creation of double occupancies in a 3D Fermionic Mott insulator near half-filling by modulation of optical lattice potential. At high temperatures, incoherent holes lead to a broad response peaked ...
Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases
(American Physical Society, 2008)
We report on the observation of the phase dynamics of interacting one-dimensional ultracold bosonic gases with two internal degrees of freedom. By controlling the non-linear atomic interactions close to a Feshbach resonance ...
Characterization of Topological States on a Lattice with Chern Number
(Institute of Physics, 2008)
We study Chern numbers to characterize the ground state of strongly interacting systems on a lattice. This method allows us to perform a numerical characterization of bosonic fractional quantum Hall (FQH) states on a lattice ...
Quantum Many-Body Dynamics of Coupled Double-Well Superlattices
(American Physical Society, 2008)
We propose a method for controllable generation of non-local entangled pairs using spinor atoms loaded in an optical superlattice. Our scheme iteratively increases the distance between entangled atoms by controlling the ...
Controlled Preparation and Detection of d-Wave Superfluidity in Two-Dimensional Optical Superlattices
(Institute of Physics, 2009)
\(d\)-wave Cooper pairs are believed to be the key for understanding the phenomenon of high-temperature superconductivity in cuprates. These superconductors are an example of the emergence of strong pairing in systems with ...
Fractional Quantum Hall States of Atoms in Optical Lattices
(American Physical Society (APS), 2005)
We describe a method to create fractional quantum Hall states of atoms confined in optical lattices. We show that the dynamics of the atoms in the lattice is analogous to the motion of a charged particle in a magnetic field ...
Magnetization Plateaus for Spin-One Bosons in Optical Lattices: Stern-Gerlach Experiments with Strongly Correlated Atoms
(American Physical Society (APS), 2004)
We consider insulating states of spin-one bosons in optical lattices in the presence of a weak magnetic field. For the states with more than one atom per lattice site we find a series of quantum phase transitions between ...
Superfluid-Insulator Transition in a Moving System of Interacting Bosons
(American Physical Society (APS), 2005)
We analyze the stability of superfluid currents in a system of strongly interacting ultracold atoms in an optical lattice. We show that such a system undergoes a dynamic, irreversible phase transition at a critical phase ...
Quantum Magnetism with Multicomponent Dipolar Molecules in an Optical Lattice
(American Physical Society (APS), 2006)
We consider bosonic dipolar molecules in an optical lattice prepared in a mixture of different rotational states. The 1=r3 interaction between molecules for this system is produced by exchanging a quantum of angular momentum ...
Engineering superfluidity in Bose-Fermi mixtures of ultracold atoms
(American Physical Society (APS), 2005)
We investigate many-body phase diagrams of atomic boson-fermion mixtures loaded in the two-dimensional optical lattice. Bosons mediate an attractive, finite-range interaction between fermions, leading to fermion pairing ...