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Fractionalized Fermi liquids
T. Senthil, Subir Sachdev, Matthias Vojta
In spatial dimensions d >= 2, Kondo lattice models of conduction and local moment electrons can exhibit a fractionalized, non-magnetic state (FL*) with a Fermi surface of sharp ele…
Scratching the Bose surface
Subir Sachdev
This is a `News and Views' article discussing recent proposals for ground states of many boson systems which are neither superfluids nor Mott insulators.
Spin collective mode and quasiparticle contributions to STM spectra of d-wave superconductors with pinning
Anatoli Polkovnikov, Subir Sachdev, Matthias Vojta
We present additional details of the scanning tunneling microscopy (STM) spectra predicted by the model of pinning of dynamic spin collective modes in d-wave superconductor propose…
Non-equilibrium Gross-Pitaevskii dynamics of boson lattice models
Anatoli Polkovnikov, Subir Sachdev, S. M. Girvin
Motivated by recent experiments on trapped ultra-cold bosonic atoms in an optical lattice potential, we consider the non-equilibrium dynamic properties of such bosonic systems for…
Strongly coupled quantum criticality with a Fermi surface in two dimensions: fractionalization of spin and charge collective modes
Subir Sachdev, Takao Morinari
We describe two dimensional models with a metallic Fermi surface which display quantum phase transitions controlled by strongly interacting critical field theories below their uppe…
Mott insulators in strong electric fields
Subir Sachdev, K. Sengupta, S. M. Girvin
Recent experiments on ultracold atomic gases in an optical lattice potential have produced a Mott insulating state of Rb atoms. This state is stable to a small applied potential gr…