Anomalous transport from hot quasiparticles in interacting spin chains

S Gopalakrishnan, R Vasseur - Reports on Progress in Physics, 2023 - iopscience.iop.org
Many experimentally relevant quantum spin chains are approximately integrable, and
support long-lived quasiparticle excitations. A canonical example of integrable model of …

Superdiffusion from nonabelian symmetries in nearly integrable systems

S Gopalakrishnan, R Vasseur - Annual Review of Condensed …, 2024 - annualreviews.org
The Heisenberg spin chain is a canonical integrable model. As such, it features stable
ballistically propagating quasiparticles, but spin transport is subballistic at any nonzero …

Microwave Engineering of Programmable Hamiltonians in Arrays of Rydberg Atoms

P Scholl, HJ Williams, G Bornet, F Wallner, D Barredo… - PRX Quantum, 2022 - APS
We use the resonant dipole-dipole interaction between Rydberg atoms and a periodic
external microwave field to engineer XXZ spin Hamiltonians with tunable anisotropies. The …

Kardar–Parisi–Zhang universality in a one-dimensional polariton condensate

Q Fontaine, D Squizzato, F Baboux, I Amelio… - Nature, 2022 - nature.com
Revealing universal behaviours is a hallmark of statistical physics. Phenomena such as the
stochastic growth of crystalline surfaces and of interfaces in bacterial colonies, and spin …

A subwavelength atomic array switched by a single Rydberg atom

K Srakaew, P Weckesser, S Hollerith, D Wei, D Adler… - Nature Physics, 2023 - nature.com
Enhancing light–matter coupling at the level of single quanta is essential for numerous
applications in quantum science. The cooperative optical response of subwavelength atomic …

Observing emergent hydrodynamics in a long-range quantum magnet

MK Joshi, F Kranzl, A Schuckert, I Lovas, C Maier… - Science, 2022 - science.org
Identifying universal properties of nonequilibrium quantum states is a major challenge in
modern physics. A fascinating prediction is that classical hydrodynamics emerges …

Formation of robust bound states of interacting microwave photons

A Morvan, TI Andersen, X Mi, C Neill, A Petukhov… - Nature, 2022 - nature.com
Abstract Systems of correlated particles appear in many fields of modern science and
represent some of the most intractable computational problems in nature. The computational …

Superdiffusion in spin chains

VB Bulchandani, S Gopalakrishnan… - Journal of Statistical …, 2021 - iopscience.iop.org
This review summarizes recent advances in our understanding of anomalous transport in
spin chains, viewed through the lens of integrability. Numerical advances, based on tensor …

Emergence of fluctuating hydrodynamics in chaotic quantum systems

JF Wienand, S Karch, A Impertro, C Schweizer… - Nature Physics, 2024 - nature.com
A fundamental principle of chaotic quantum dynamics is that local subsystems eventually
approach a thermal equilibrium state. The corresponding timescales increase with …

Long-lived phantom helix states in Heisenberg quantum magnets

PN Jepsen, YKE Lee, H Lin, I Dimitrova, Y Margalit… - Nature Physics, 2022 - nature.com
Exact solutions for quantum many-body systems are rare but provide valuable insights for
the description of universal phenomena such as the non-equilibrium dynamics of strongly …