97 citations · 102 across the 11 of their papers we have counts for
11 papers
Local decoders for fault-tolerant quantum computation and translation-invariant stabilizer codes
Nathaniel Selub, Aditya Bhardwaj, Ethan Lake
We construct the first fully spatially local fault-tolerant quantum computer based on topological codes in fewer than four spatial dimensions. Our construction is a two-dimensional…
Long-lived memory in sliding spin chains
Charles Stahl, Ethan Lake
We study a system of two ferromagnetic one-dimensional Ising chains coupled to a thermal bath, which are driven out of equilibrium by being moved past one another at a constant spe…
Brownian ratchets and pumps universally simulate many-body active dynamics
Charles Stahl, Ethan Lake, Vedika Khemani
Active systems can exhibit a broad range of phenomena forbidden in equilibrium. Their dynamics are often specified by abstract local update rules, and it is generally unclear when…
Proof of a finite threshold for the union-find decoder
Satoshi Yoshida, Ethan Lake, Hayata Yamasaki
Fast decoders that achieve strong error suppression are essential for fault-tolerant quantum computation (FTQC) from both practical and theoretical perspectives. The union-find (UF…
Multi-Particle Quantum Walks in a Dipole-Conserving Bose-Hubbard Model
Sooshin Kim, Byungmin Kang, Perrin Segura +4
When particles move through a crystal or optical lattice, their motion can sometimes become frozen by strong external forces -- yet collective motion may still emerge through subtl…
Local active error correction from simulated confinement
Ethan Lake
We refine an old idea for performing fault-tolerant error correction in topological codes by simulating confining interactions between excitations. We implement confinement using a…
Exploring the Landscape of Non-Equilibrium Memories with Neural Cellular Automata
Ehsan Pajouheshgar, Aditya Bhardwaj, Nathaniel Selub +1
We investigate the landscape of many-body memories: families of local non-equilibrium dynamics that retain information about their initial conditions for thermodynamically long tim…
Squeezing codes: robust fluctuation-stabilized memories
Ethan Lake, Sunghan Ro
We introduce families of classical stochastic dynamics in two and higher dimensions which stabilize order in the absence of any symmetry. Our dynamics are qualitatively distinct fr…
Fast offline decoding with local message-passing automata
Ethan Lake
We present a local offline decoder for topological codes that operates according to a parallelized message-passing framework. The decoder works by passing messages between anyons,…
Direct observation of a magnetic field-induced Wigner crystal
Yen-Chen Tsui, Minhao He, Yuwen Hu +6
Eugene Wigner predicted long ago that when the Coulomb interactions between electrons become much stronger than their kinetic energy, electrons crystallize into a closely packed la…
Topological quantum chains protected by dipolar and other modulated symmetries
Jung Hoon Han, Ethan Lake, Ho Tat Lam +2
We investigate the physics of one-dimensional symmetry protected topological (SPT) phases protected by symmetries whose symmetry generators exhibit spatial modulation. We focus in…