65 citations · 124 across the 8 of their papers we have counts for
8 papers
Mixed-state learnability transitions in monitored noisy quantum dynamics
Hansveer Singh, Romain Vasseur, Andrew C. Potter +1
We consider learnability transitions in monitored quantum systems that undergo noisy evolution, subject to a global strong symmetry -- i.e., in addition to the measuring apparatus,…
Subdiffusive transport in the Fredkin dynamical universality class
Catherine McCarthy, Hansveer Singh, Sarang Gopalakrishnan +1
We identify a pseudolocal conserved charge in the Fredkin and Motzkin quantum spin chains and explore its consequences for the hydrodynamics of systems with Fredkin- or Motzkin-typ…
Emergence of Navier-Stokes hydrodynamics in chaotic quantum circuits
Hansveer Singh, Ewan McCulloch, Sarang Gopalakrishnan +1
We construct an ensemble of two-dimensional nonintegrable quantum circuits that are chaotic but have a conserved particle current, and thus a finite Drude weight. The long-waveleng…
Effective Luttinger parameter and Kane-Fisher effect in quasiperiodic systems
T. J. Vongkovit, Hansveer Singh, Romain Vasseur +1
The ground states of interacting one-dimensional metals are generically Luttinger liquids. Luttinger liquid theory is usually considered for translation invariant systems. The Lutt…
Tunable superdiffusion in integrable spin chains using correlated initial states
Hansveer Singh, Michael H. Kolodrubetz, Sarang Gopalakrishnan +1
Although integrable spin chains only host ballistically propagating particles they can still feature diffusive spin transport. This diffusive spin transport originates from quasipa…
The Fredkin staircase: An integrable system with a finite-frequency Drude peak
Hansveer Singh, Romain Vasseur, Sarang Gopalakrishnan
We introduce and explore an interacting integrable cellular automaton, the Fredkin staircase, that lies outside the existing classification of such automata, and has a structure th…
Subdiffusion and many-body quantum chaos with kinetic constraints
Hansveer Singh, Brayden Ware, Romain Vasseur +1
We investigate the spectral and transport properties of many-body quantum systems with conserved charges and kinetic constraints. Using random unitary circuits, we compute ensemble…
Local integrals of motion and the quasiperiodic many-body localization transition
Hansveer Singh, Brayden Ware, Romain Vasseur +1
We study the many body localization (MBL) transition for interacting fermions subject to quasiperiodic potentials by constructing the local integrals of motion (LIOMs) in the MBL p…