4 papers
New class of exactly flat topological bands - compact localised states protected by local graph topology
Tamaghna Hazra
Strongly correlated quantum matter is fundamentally defined by the tension between non-commuting quantum operators. Hamiltonians exhibiting macroscopic degeneracies are of general…
Obstructed Cooper pairs in flat band systems -- weakly-coherent superfluids and exact spin liquids
Tamaghna Hazra, Nishchhal Verma, Jörg Schmalian
Superconductivity in a partially filled flat band presents a vexing conceptual hurdle because the absence of a Fermi surface precludes a weak-coupling regime where one can extend i…
Buckyballs directly probe inter-valley coherence in moire heterostructures
Tamaghna Hazra
Moire materials like twisted bilayer graphene have emerged as a rich playground of strongly correlated physics, where the effect of interactions can be drastically enhanced by tuni…
Pair-Kondo effect: a mechanism for time-reversal broken superconductivity in UTe
Tamaghna Hazra, Pavel A. Volkov
An important open puzzle in the superconductivity of UTe is the emergence of time-reversal broken superconductivity from a non-magnetic normal state. Breaking time-reversal sym…