81 citations · 103 across the 12 of their papers we have counts for
5 papers · 1 filter
Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model
Shengtao Jiang, Jean-Yves Desaules, Marko Ljubotina +1
The PXP chain was recently shown to exhibit superdiffusive energy transport with Kardar-Parisi-Zhang-like scaling, , joining a growing number of spin chains with this…
Asymptotic freedom, lost: Complex conformal field theory in the two-dimensional nonlinear sigma model and its realization in Heisenberg spin chains
Christopher Yang, Thomas Scaffidi
The two-dimensional nonlinear sigma model (NLSM) is asymptotically free for : it exhibits neither a nontrivial fixed point nor spontaneous symmetry-breaking. Here we sh…
Does scrambling equal chaos?
Tianrui Xu, Thomas Scaffidi, Xiangyu Cao
Focusing on semiclassical systems, we show that the parametrically long exponential growth of out-of-time order correlators (OTOCs), also known as scrambling, does not necessitate…
Integrable and chaotic dynamics of spins coupled to an optical cavity
Gregory Bentsen, Ionut-Dragos Potirniche, Vir B. Bulchandani +5
We show that a class of random all-to-all spin models, realizable in systems of atoms coupled to an optical cavity, gives rise to a rich dynamical phase diagram due to the pairwise…
A Universal Operator Growth Hypothesis
Daniel E. Parker, Xiangyu Cao, Alexander Avdoshkin +2
We present a hypothesis for the universal properties of operators evolving under Hamiltonian dynamics in many-body systems. The hypothesis states that successive Lanczos coefficien…