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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…
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…
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…
Pinning of dynamic spin density wave fluctuations in the cuprate superconductors
Anatoli Polkovnikov, Matthias Vojta, Subir Sachdev
We present a theory of the pinning of dynamic spin density wave (SDW) fluctuations in a d-wave superconductor by local imperfections which preserve spin-rotation invariance, such a…
Spin and charge order in the vortex lattice of the cuprates: experiment and theory
Subir Sachdev
I summarize recent results, obtained with E. Demler, K. Park, A. Polkovnikov, M. Vojta, and Y. Zhang, on spin and charge correlations near a magnetic quantum phase transition in th…