Conveners
W2-7 Condensed Matter Theory I (DCMMP) | Théorie de la matière condensée I (DPMCM)
- Kartiek Agarwal (McGill University)
Multiple experiments have observed a sharp transition in the band structure of LaAlO$_3$/SrTiO$_3$ (001) interfaces as a function of applied gate voltage. This Lifshitz transition, between a single occupied band at low electron density and multiple occupied bands at high density, is remarkable for its abruptness. In this work, we propose a mechanism by which such a transition might happen. ...
Unconventional superconductors, such as high-$T_c$ cuprates, strontium ruthenate and twisted bilayer graphene, are likely driven towards their state by strong electron-electron repulsion, instead of the classic electron-phonon interaction.
Theoretical modeling of these materials may accordingly be based on the Hubbard model or by its multi-band variations. Few theoretical approaches can deal...
While many-body localization has primarily been studied in systems with a single local degree of freedom, experimental studies of many-body localization in cold atom systems motivate exploration of the disordered Hubbard model. With two coupled local degrees of freedom it is natural to ask how localization in charge relates to disorder in spin and vice versa. Most prior work has addressed...
Strange or bad metallic transport, defined by its incompatibility with conventional quasiparticle pictures, is a theme common to strongly correlated materials and ubiquitous in many high temperature superconductors. The Hubbard model represents a minimal starting point for modeling strongly correlated systems. Here we demonstrate strange metallic transport in the doped two-dimensional Hubbard...
