5 papers
Quench spectroscopy of amplitude modes in a one-dimensional critical phase
Hyunsoo Ha, David A. Huse, Rhine Samajdar
We investigate the emergence of an amplitude (Higgs-like) mode in the gapless phase of the D XXZ spin chain. Unlike conventional settings where amplitude modes arise from sp…
Boundary-driven quantum systems near the Zeno limit: steady states and long-time behavior
Eric A. Carlen, David A. Huse, Joel L. Lebowitz
We study composite open quantum systems with a finite-dimensional state space governed by a Lindblad equation wh…
Roughening Transition in Quantum Circuits
Hyunsoo Ha, David A. Huse, Grace M. Sommers
We explore a roughening phase transition that occurs in the entanglement dynamics of certain quantum circuits. Viewing entanglement as the free energy of a membrane in a circuit-de…
Observation of a Fault Tolerance Threshold with Concatenated Codes
Grace M. Sommers, Michael Foss-Feig, David Hayes +2
We introduce a fault-tolerant protocol for code concatenation of a generalized Shor code using a butterfly network architecture with high noise thresholds and low ancilla overhead…
Absorbing state transitions with discrete symmetries
Hyunsoo Ha, David A. Huse, Rhine Samajdar
Robust phases of matter, which remain stable under small perturbations, are of fundamental importance in statistical physics and quantum information. Recent advances in interactive…