72 citations · 188 across the 8 of their papers we have counts for
8 papers
Quantum chaos at finite temperature in local spin Hamiltonians
Christopher M. Langlett, Cheryne Jonay, Vedika Khemani +1
Understanding the emergence of chaos in many-body quantum systems away from semi-classical limits, particularly in spatially local interacting spin Hamiltonians, has been a long-st…
Late-time ensembles of quantum states in quantum chaotic systems
Souradeep Ghosh, Christopher M. Langlett, Nicholas Hunter-Jones +1
We study the universal structure of late-time ensembles obtained from unitary dynamics in quantum chaotic systems with symmetries, such as charge or energy conservation. We find th…
Entanglement patterns of quantum chaotic Hamiltonians with a scalar U(1) charge
Christopher M. Langlett, Joaquin F. Rodriguez-Nieva
Our current understanding of quantum chaos in many-body quantum systems hinges on the random matrix theory(RMT) behavior of eigenstates and their energy level statistics. Although…
Noise Induced Universal Diffusive Transport in Fermionic Chains
Christopher M. Langlett, Shenglong Xu
We develop a microscopic transport theory in a randomly driven fermionic model with and without linear potential. The operator dynamics arise from the competition between noisy and…
Quantum Many-Body Scars from Einstein-Podolsky-Rosen States in Bilayer Systems
Julia Wildeboer, Christopher M. Langlett, Zhi-Cheng Yang +3
Quantum many-body scar states are special eigenstates of nonintegrable models with distinctive entanglement features that give rise to infinitely long-lived coherent dynamics under…
Long-Range Bell States from Local Measurements and Many-Body Teleportation without Time-Reversal
Lakshya Agarwal, Christopher M. Langlett, Shenglong Xu
In this work, we study quantum many-body teleportation, where a single qubit is teleported through a strongly-interacting quantum system, as a result of a scrambling unitary and lo…
Rainbow Scars: From Area to Volume Law
Christopher M. Langlett, Zhi-Cheng Yang, Julia Wildeboer +3
Quantum many-body scars (QMBS) constitute a new quantum dynamical regime in which rare "scarred" eigenstates mediate weak ergodicity breaking. One open question is to understand th…
Hilbert Space Fragmentation and Exact Scars of Generalized Fredkin Spin Chains
Christopher M. Langlett, Shenglong Xu
In this work, based on the Fredkin spin chain, we introduce a family of spin- many-body Hamiltonians with a three-site interaction featuring a fragmented Hilbert space with co…