5 papers
Flat-band quantum geometry from embedded quench dynamics
Ilia Komissarov, Daniel E. Sheehy, Ahana Chakraborty
Quantum geometry underlies a wide range of correlated phenomena in electronic systems, yet accessing the geometry of individual bands remains experimentally challenging. Advances i…
Theory of post-selected entanglement transitions in monitored bosons
Ilia Komissarov, Emanuele G. Dalla Torre, Ahana Chakraborty
Entanglement phase transitions driven by quantum measurements have emerged as a central paradigm in open quantum many-body physics. Such phase transitions are well established for…
Superdielectrics: Disorder-induced perfect screening in insulators
Ilia Komissarov, Tobias Holder, Raquel Queiroz
We study the relationship between the quantities that encode the insulating properties of matter: the ground-state quantum metric, the average localization length, and the electric…
Quantum Critical Dynamics Induced by Topological Zero Modes
Ilia Komissarov, Tobias Holder, Raquel Queiroz
We investigate the low-frequency ac transport in the Su-Schrieffer-Heeger (SSH) chain with chiral disorder near the topological delocalization transition. Our key finding is that t…
Doped moiré magnets: renormalized flat bands and excitonic phases
Ilia Komissarov, Onur Erten, Pouyan Ghaemi
We explore the phase diagram of a twisted bilayer of strongly interacting electrons on a honeycomb lattice close to half-filling using the slave boson mean-field theory. Our analys…