78 citations · 210 across the 6 of their papers we have counts for
17 papers
High-temperature transport and polaron speciation in the anharmonic Holstein model
Attila Szabó, S. A. Parameswaran, Sarang Gopalakrishnan
We study the finite-temperature transport of electrons coupled to anharmonic local phonons. Our focus is on the high-temperature incoherent regime, where controlled calculations ar…
Hydrodynamic non-linear response of interacting integrable systems
Michele Fava, Sounak Biswas, Sarang Gopalakrishnan +2
We develop a formalism for computing the non-linear response of interacting integrable systems. Our results are asymptotically exact in the hydrodynamic limit where perturbing fiel…
Theory of competing excitonic orders in insulating WTe monolayers
Yves H. Kwan, T. Devakul, S. L. Sondhi +1
We develop a theory of the excitonic phase recently proposed as the zero-field insulating state observed near charge neutrality in monolayer WTe. Using a Hartree-Fock approxima…
Superuniversality from disorder at two-dimensional topological phase transitions
Byungmin Kang, S. A. Parameswaran, Andrew C. Potter +2
We investigate the effects of quenched randomness on topological quantum phase transitions in strongly interacting two-dimensional systems. We focus first on transitions driven by…
Asymptotically exact theory for nonlinear spectroscopy of random quantum magnets
S. A. Parameswaran, Sarang Gopalakrishnan
We study nonlinear response in quantum spin systems {near infinite-randomness critical points}. Nonlinear dynamical probes, such as two-dimensional (2D) coherent spectroscopy, can…
Spin crossovers and superdiffusion in the one-dimensional Hubbard model
Michele Fava, Brayden Ware, Sarang Gopalakrishnan +2
We use tools from integrability and generalized hydrodynamics to study finite-temperature dynamics in the one-dimensional Hubbard model. First, we examine charge, spin, and energy…