Topic: quantum error correction

Conduct theoretical research on topological matter, quantum devices, quantum error correction, fault-tolerant computation, non-equilibrium quantum dynamics and generalized symmetries at the C.N. Yang Institute. The expected start is September 2027. Appointments run for two years and may renew for a third subject to funding. Exceptional candidates may join the Simons Non-Equilibrium Frontier collaboration. Review begins 16 November 2026 and continues until filled.

Sisi Zhou examines how quantum information methods can improve the precision of physical measurements. Qubit examples distinguish noise that quantum error correction can suppress from noise indistinguishable from the signal. The discussion extends to several qubits, phase estimation, many-body measurements and distributed sensors. A second part applies quantum-learning tools, including tomography, certification and purification, to estimation of several parameters. Because incompatible observables prevent all parameters from being measured optimally together, designing measurements is difficul