387 citations · 1.6k across the 70 of their papers we have counts for
8 papers · 1 filter
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…
Optical Crystals and Light-Bullets in Kerr Resonators
M. Tlidi, S. S. Gopalakrishnan, M. Taki +1
Stable light bullets and clusters of them are presented in the monostable regime using the mean-field Lugiato-Lefever equation [Gopalakrishnan, Panajotov, Taki, and Tlidi, Phys. Re…
Operator front broadening in chaotic and integrable quantum chains
Javier Lopez-Piqueres, Brayden Ware, Sarang Gopalakrishnan +1
Operator spreading under unitary time evolution has attracted a lot of attention recently, as a way to probe many-body quantum chaos. While quantities such as out-of-time-ordered c…
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…
Superdiffusion in spin chains
Vir B. Bulchandani, Sarang Gopalakrishnan, Enej Ilievski
This review summarizes recent advances in our understanding of anomalous transport in spin chains, viewed through the lens of integrability. Numerical advances, based on tensor-net…
Lifetimes of local excitations in disordered dipolar quantum systems
Rahul Nandkishore, Sarang Gopalakrishnan
When a strongly disordered system of interacting quantum dipoles is locally excited, the excitation relaxes on some (potentially very long) timescale. We analyze this relaxation pr…