5 papers
Learning transitions of topological surface codes
Finn Eckstein, Bo Han, Simon Trebst +1
For the surface code, topological quantum order allows one to encode logical quantum information in a robust, long-range entangled many-body quantum state. However, if an observer…
Symmetry-deformed toric codes and the quantum dimer model
Jiaxin Qiao, Yoshito Watanabe, Simon Trebst
Motivated by the recent introduction of a -symmetric toric code model, we investigate symmetry-based deformations of topological order by systematically deconstructing the Ga…
Flow to Nishimori universality in weakly monitored quantum circuits with qubit loss
Malte Pütz, Romain Vasseur, Andreas W. W. Ludwig +2
In circuit-based quantum state preparation, qubit loss and coherent errors are circuit imperfections that imperil the formation of long-range entanglement beyond a certain threshol…
Decoherence-induced self-dual criticality in topological states of matter
Qingyuan Wang, Romain Vasseur, Simon Trebst +2
Quantum measurements performed on a subsystem of a quantum many-body state can generate entanglement for its remaining constituents. The whole system including the measurement reco…
Constructing Emergent U(1) Symmetries in the Gamma-prime model
Sagar Ramchandani, Simon Trebst, Ciarán Hickey
Frustrated magnets can elude the paradigm of conventional symmetry breaking and instead exhibit signatures of emergent symmetries at low temperatures. Such symmetries arise from "a…