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Magnetic Field Tuning of Charge and Spin Order in the Cuprate Superconductors
(World Scientific Pub Co Pte Lt, 2002)
Recent neutron scattering, nuclear magnetic resonance, and scanning tunneling microscopy experiments have yielded valuable new information on the interplay between charge and spin density wave order and superconductivity ...
Josephson effects between multigap and single-gap superconductors
(American Physical Society (APS), 2002)
Multigap superconductors can exhibit qualitatively different phenomena due to the existence of multiple order parameters. Repulsive electronic interactions may give rise to a phase difference of between the phases of the ...
Competing orders in a magnetic field: Spin and charge order in the cuprate superconductors
(American Physical Society (APS), 2002)
We describe two-dimensional quantum spin fluctuations in a superconducting Abrikosov flux lattice induced by a magnetic field applied to a doped Mott insulator. Complete numerical solutions of a self-consistent large- N ...
Spinor Bosonic Atoms in Optical Lattices: Symmetry Breaking and Fractionalization
(American Physical Society (APS), 2002)
We study superfluid and Mott insulator phases of cold spin-1 Bose atoms with antiferromagnetic in- teractions in an optical lattice, including a usual polar condensate phase, a condensate of singlet pairs, a crystal spin ...
Quantum phase transitions in the Bose-Fermi Kondo model
(American Physical Society (APS), 2002)
We study quantum phase transitions in the Bose-Fermi Kondo problem, where a local spin is coupled to independent bosonic and fermionic degrees of freedom. Applying a second-order expansion in the anomalous dimension of the ...
Magnetoplasmon excitations and spin density instabilities in an integer quantum Hall system with a tilted magnetic field
(American Physical Society (APS), 2002)
We study the magnetoplasmon collective-mode excitations of integer quantum Hall systems in a paraboli- cally confined quantum well nanostructure in the presence of a tilted magnetic field by using the time- dependent ...
Fractionalization patterns in strongly correlated electron systems: Spin-charge separation and beyond
(American Physical Society (APS), 2002)
We discuss possible patterns of electron fractionalization in strongly interacting electron systems. A popular possibility is one in which the charge of the electron has been liberated from its Fermi statistics. Such a ...
High-Temperature Superfluidity of Fermionic Atoms in Optical Lattices
(American Physical Society (APS), 2002)
Fermionic atoms confined in a potential created by standing wave light can undergo a phase transition to a superfluid state at a dramatically increased transition temperature. Depending upon carefully controlled parameters, ...