Hardness results for decoding the surface code with Pauli noise
November 21, 2024
Deutsch Research Group
Quantum Measurement and Control
Research Overview
Our Research Group specializes in theoretical quantum information science (QIS), quantum optics, and atomic-molecular-optical (AMO) physics. We study the foundations of quantum information processing (QIP) and its implementation in AMO systems. Key questions we seek to address include:
- How much complexity can we harness for QIP in noisy quantum systems without error correction (NISQ devices)?
- How does dynamical complexity (quantum chaos) relate to computational complexity for QIP?
- How do we achieve high fidelity control of complex quantum systems?
- How do we best characterize, verify, and validate the performance of quantum information processors?
We collaborate with investigators across CQuIC in order to bring fundamental ideas and protocols into the laboratory. Together with Prof. P. S. Jessen, we have developed platforms for quantum control, simulation, measurement, feedback, and tomography, based on spins in cold atomic gases. Together with Profs. T. Albash and A. Miyake we study how much quantum advantage we can harness in Noisy Intermediate Scale Quantum (NISQ) devices. With Prof. G. Biedermann (University of Oklahoma) and Prof. Albash, we seek to put this to the test in an experimental platform based on a Cs Rydberg atom QIP. Together with Prof. F. E. Becerra we seek to create complex quantum states of atom ensembles through measurement and feedback. Together with Dr. M. Martin (Los Alamos) we study quantum control of atomic quditsin an experimental platform basedon a Sr Rydberg atom QIP.
Recent News
Hardness results for decoding the surface code with Pauli noise
Low prior information metrology with fewer interactions
May 15, 2024
Quantum and Classical Nonlinear Dynamics of p-spin Kicked Tops
May 19, 2021
Using measurement and feedback control to simulate complex mean field spin dynamics in quantum systems
August 17, 2020
In physical systems composed of many parts, like ultracold atomic ensembles, electrons in a superconductor, or arrays of superconducting circuits, complex dynamics emerges when the different parts of …
Adiabatic rapid passage facilitates robust entangling gates for neutral atoms
June 16, 2020
Anupam Mitra, Pablo Poggi and Ivan Deutsch collaborating with Michael Martin, Grant Biedermann and Alberto Marino at Sandia National Laboratories, Los Alamos National Laboratory and the University of …
