21 citations · 38 across the 16 of their papers we have counts for
18 papers
Measurement-induced criticality for non-Abelian anyons: The monitored golden chain
Zhaohui Zhi, Bo Han, Romain Vasseur +3
Non-Abelian anyon chains whose interactions favor a single fusion channel host quantum critical ground states described by minimal-model conformal field theories (CFTs) protected b…
Homological Thresholds in Randomly Monitored Quantum Error-Correcting Codes
Yoshito Watanabe, Daiki Sasamoto, Bo Han +1
Random projective measurements are an effective tool to model the interlinked phenomenology of monitoring, inferring, and decoding highly entangled states such as quantum error-cor…
Learning Potts Models and Toric Codes: Higher and Ordinary Nishimori Criticality
Rushikesh A. Patil, Malte Pütz, Rohit Mukherjee +3
Motivated by a previous Ising study, we identify a Nishimori line in the learning phase diagram of the -state Potts model under bond-energy m…
Optimal Decoding for Measurement-Based GHZ State Preparation: The Maximum-Utility Decoder
Misha Yutushui, Theo Haas, Simon Trebst
The meticulous preparation of macroscopic Greenberger-Horne-Zeilinger (GHZ) states provides a foundational resource for quantum technologies such as metrology, cryptography, and fa…
Nishimori Threshold Estimation for Bayesian Inference and Surface Code Decoding
Rohit Mukherjee, Simon Trebst
In quantum error correction, the error threshold provides essential quantitative guidance for the ability to bring about fault-tolerance through decoding the effects of incoherent…
Dynamical self-dual criticality in Fibonacci-monitored quantum Ising chains
Finn Eckstein, Harald Schmid, Quinten Preiss +3
For the quantum phase transition in the transverse-field Ising chain, Kramers-Wannier duality not only protects its critical properties but also pinpoints the location of the phase…
Higher Nishimori Criticality and Exact Results at the Learning Transition of Deformed Toric Codes
Rushikesh A. Patil, Malte Pütz, Simon Trebst +2
We revisit a learning-induced tricritical point, at which three phases with strong, weak, and broken symmetry meet, in the phase diagram of a deformed toric code wavefunction…
Floquet implementation of a 3d fermionic toric code with full logical code space
Yoshito Watanabe, Bianca Bannenberg, Simon Trebst
Floquet quantum error-correcting codes provide an operationally economical route to fault tolerance by dynamically generating stabilizer structures using only two-body Pauli measur…
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…
Two-dimensional coherent spectroscopy of CoNbO
Yoshito Watanabe, Simon Trebst, Ciarán Hickey
With recent advances in terahertz (THz) sources and detection, two-dimensional coherent spectroscopy (2DCS), which allows to probe nonlinear responses in a two-frequency plane, now…
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…
Learning transitions in classical Ising models and deformed toric codes
Malte Pütz, Samuel J. Garratt, Hidetoshi Nishimori +2
Conditional probability distributions describe the effect of learning an initially unknown classical state through Bayesian inference. Here we demonstrate the existence of a \texti…
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…
Entanglement dynamics in monitored Kitaev circuits: loop models, symmetry classification, and quantum Lifshitz scaling
Kai Klocke, Daniel Simm, Guo-Yi Zhu +2
Quantum circuits offer a versatile platform for simulating digital quantum dynamics and uncovering novel states of non-equilibrium quantum matter. One principal example are measure…
Robust teleportation of a surface code and cascade of topological quantum phase transitions
Finn Eckstein, Bo Han, Simon Trebst +1
Teleportation is a facet where quantum measurements can act as a powerful resource in quantum physics, as local measurements allow to steer quantum information in a non-local way.…
Chaotic fluctuations in a universal set of transmon qubit gates
Daniel Basilewitsch, Simon-Dominik Börner, Christoph Berke +3
Transmon qubits arise from the quantization of nonlinear resonators, systems that are prone to the buildup of strong, possibly chaotic, fluctuations. Such instabilities will likely…