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Operator relaxation and the optimal depth of classical shadows
Matteo Ippoliti, Yaodong Li, Tibor Rakovszky +1
Classical shadows are a powerful method for learning many properties of quantum states in a sample-efficient manner, by making use of randomized measurements. Here we study the sam…
Entanglement and Absorbing-State Transitions in Interactive Quantum Dynamics
Nicholas O'Dea, Alan Morningstar, Sarang Gopalakrishnan +1
Nascent quantum computers motivate the exploration of quantum many-body systems in nontraditional scenarios. For example, it has become natural to explore the dynamics of systems e…
Universality classes of thermalization for mesoscopic Floquet systems
Alan Morningstar, David A. Huse, Vedika Khemani
We identify several phases of thermalization that describe regimes of behavior in isolated, periodically driven (Floquet), mesoscopic quantum chaotic systems. We also identify a ne…
Slow thermalization and subdiffusion in conserving Floquet random circuits
Cheryne Jonay, Joaquin F. Rodriguez-Nieva, Vedika Khemani
Random quantum circuits are paradigmatic models of minimally structured and analytically tractable chaotic dynamics. We study a family of Floquet unitary circuits with Haar random…
Random Quantum Circuits
Matthew P. A. Fisher, Vedika Khemani, Adam Nahum +1
Quantum circuits -- built from local unitary gates and local measurements -- are a new playground for quantum many-body physics and a tractable setting to explore universal collect…
Quantum Many-Body Scars: A Quasiparticle Perspective
Anushya Chandran, Thomas Iadecola, Vedika Khemani +1
Weakly interacting quasiparticles play a central role in the low-energy description of many phases of quantum matter. At higher energies, however, quasiparticles cease to be well-d…
Dynamical correlations and domain wall relocalization in transverse field Ising chains
Philippe Suchsland, Benoît Douçot, Vedika Khemani +1
We study conventional and out-of-time-ordered correlators (OTOCs) for a wide variety of transverse field Ising chains: classical and quantum, clean and disordered, and integrable a…
Topology, criticality, and dynamically generated qubits in a stochastic measurement-only Kitaev model
Adithya Sriram, Tibor Rakovszky, Vedika Khemani +1
We consider a paradigmatic solvable model of topological order in two dimensions, Kitaev's honeycomb Hamiltonian, and turn it into a measurement-only dynamics consisting of stochas…
Phenomenology of the Prethermal Many-Body Localized Regime
David M. Long, Philip J. D. Crowley, Vedika Khemani +1
The dynamical phase diagram of interacting disordered systems has seen substantial revision over the past few years. Theory must now account for a large prethermal many-body locali…
Many body localization transition with correlated disorder
Zhengyan Darius Shi, Vedika Khemani, Romain Vasseur +1
We address the critical properties of the many-body localization (MBL) phase transition in one-dimensional systems subject to spatially correlated disorder. We consider a general f…
Distinct universality classes of diffusive transport from full counting statistics
Sarang Gopalakrishnan, Alan Morningstar, Romain Vasseur +1
The hydrodynamic transport of local conserved densities furnishes an effective coarse-grained description of the dynamics of a many-body quantum system. However, the full quantum d…