79 citations · 273 across the 12 of their papers we have counts for
7 papers · 1 filter
Long-time divergences in the nonlinear response of gapped one-dimensional many-particle systems
M. Fava, S. Gopalakrishnan, R. Vasseur +2
We consider one dimensional many-particle systems that exhibit kinematically protected single-particle excitations over their ground states. We show that momentum and time-resolved…
Anomalous thermal relaxation and pump-probe spectroscopy of 2D topologically ordered systems
Max McGinley, Michele Fava, S. A. Parameswaran
We study the behaviour of linear and nonlinear spectroscopic quantities in two-dimensional topologically ordered systems, which host anyonic excitations exhibiting fractional stati…
Signatures of fractional statistics in nonlinear pump-probe spectroscopy
Max McGinley, Michele Fava, S. A. Parameswaran
We show that the presence of anyons in the excitation spectrum of a two-dimensional system can be inferred from nonlinear spectroscopic quantities. In particular, we consider pump-…
Multiversality and Unnecessary Criticality in One Dimension
Abhishodh Prakash, Michele Fava, S. A. Parameswaran
We present microscopic models of spin ladders which exhibit continuous critical surfaces whose properties and existence, unusually, cannot be inferred from those of the flanking ph…
Divergent nonlinear response from quasiparticle interactions
Michele Fava, Sarang Gopalakrishnan, Romain Vasseur +2
We demonstrate that nonlinear response functions in many-body systems carry a sharp signature of interactions between gapped low-energy quasiparticles. Such interactions are challe…
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…