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Photon Counting as a Probe of Superfluidity in a Two-Band Bose Hubbard System Coupled to a Cavity Field
Sara Rajaram, Nandini Trivedi
We show that photon number measurement can be used to detect superfluidity for a two-band Bose-Hubbard model coupled to a cavity field. The atom-photon coupling induces transitions…
Theory of Half-Metallic Double Perovskites II: Effective Spin Hamiltonian and Disorder Effects
Onur Erten, O. Nganba Meetei, Anamitra Mukherjee +3
Double perovskites like SrFeMoO are materials with half-metallic ground states and ferrimagnetic T's well above room temperature. This paper is the second of our…
Theory of Half-Metallic Double Perovskites I: Double Exchange Mechanism
O. Nganba Meetei, Onur Erten, Anamitra Mukherjee +3
The double perovskite material \SFMO has the rare and desirable combination of a half-metallic ground state with 100% spin polarization and ferrimagnetic \TcK, well abo…
Theory of Strain-Controlled Magnetotransport and Stabilization of the Ferromagnetic Insulating Phase in Manganite Thin Films
Anamitra Mukherjee, William S. Cole, Patrick Woodward +2
We show that applying strain on half-doped manganites makes it possible to tune the system to the proximity of a metal-insulator transition and thereby generate a colossal magnetor…
Bose Hubbard Models with Synthetic Spin-Orbit Coupling: Mott Insulators, Spin Textures and Superfluidity
William S. Cole, Shizhong Zhang, Arun Paramekanti +1
Motivated by the experimental realization of synthetic spin-orbit coupling for ultracold atoms, we investigate the phase diagram of the Bose Hubbard model in a non-abelian gauge fi…
Theory of High T Ferrimagnetism in a Multi-orbital Mott Insulator
O. Nganba Meetei, Onur Erten, Mohit Randeria +2
We propose a model for the multi-orbital material SrCrOsO (SCOO), an insulator with remarkable magnetic properties and the highest K among {\em all} perovs…