92 citations · 212 across the 9 of their papers we have counts for
9 papers
Measure and Forget Dynamics in Random Circuits
Yucheng He, Todd A. Brun
Unrecorded or ``forgetful'' measurements -- physically, a local dephasing channel -- can arise naturally as syndrome-measurement errors in fault-tolerant protocols and as uncontrol…
Continuous measurement-based holonomic quantum computation
Anirudh Lanka, Juan Garcia-Nila, Todd A. Brun
We propose a scheme to generate holonomies using the Quantum Zeno effect, enabling logical unitary operations on quantum stabilizer codes purely through measurements. The quantum e…
Bias-tailored single-shot quantum LDPC codes
Shixin Wu, Todd A. Brun, Daniel A. Lidar
Quantum hardware rarely suffers equal amounts of bit-flip () and phase-flip () errors; one type is often much more common than the other. A code that is ``bias-tailored'' can…
Continuous quantum correction on Markovian and Non-Markovian models
Juan Garcia Nila, Todd A. Brun
We investigate continuous quantum error correction, comparing performance under a Markovian error model to two distinct non-Markovian models. The first non-Markovian model involves…
Optimizing continuous-time quantum error correction for Markovian and non-Markovian noise models
Anirudh Lanka, Shashank Hegde, Todd A. Brun
We present a protocol using machine learning (ML) to simultaneously optimize the quantum error-correcting code space and the corresponding recovery map in the framework of continuo…
Distillation of GHZ states by selective information manipulation
Oliver Cohen, Todd A. Brun
Methods for distilling maximally entangled tripartite (GHZ) states from arbitrary entangled tripartite pure states are described. These techniques work for virtually any input stat…
Quantum state diffusion with a moving basis: computing quantum-optical spectra
R. Schack, T. A. Brun, I. C. Percival
Quantum state diffusion (QSD) as a tool to solve quantum-optical master equations by stochastic simulation can be made several orders of magnitude more efficient if states in Hilbe…
Quantum state diffusion, localization and computation
R. Schack, T. A. Brun, I. C. Percival
Numerical simulation of individual open quantum systems has proven advantages over density operator computations. Quantum state diffusion with a moving basis (MQSD) provides a prac…
Quasiclassical Equations of Motion for Nonlinear Brownian Systems
Todd A. Brun
Following the formalism of Gell-Mann and Hartle, phenomenological equations of motion are derived from the decoherence functional formalism of quantum mechanics, using a path-integ…