Quantum Physics seminars

Lawrence Cheuk presents experiments using laser-cooled polar molecules held in optical-tweezer arrays. Molecular internal states and electric-dipole interactions provide resources for quantum computation, simulation and precision measurement. The talk covers preparation, control and detection of individual molecules; two-qubit operations and deterministic molecular entanglement; and one-dimensional spin simulations. Those experiments examine how spin excitations move, form bound pairs and undergo coherent pair creation and removal. A second set of experiments generates molecular spin-squeezed states and uses spatially resolved measurements to investigate reduced measurement noise, bipartite entanglement and Einstein-Podolsky-Rosen steering. Preliminary progress toward larger arrays may also be discussed. The Donald R. Hamilton Colloquium takes place in Jadwin Hall A-10 at Princeton University.

Sisi Zhou discusses how quantum error correction and quantum-learning methods can improve physical sensing. The colloquium moves from qubit examples to distributed and many-body sensing, then considers measurement strategies for estimating several parameters. It takes place in Perimeter Institute's Time Room on 30 September 2026, from 11:00 to 12:30 Toronto time.

Susanne Yelin explains how modest control of analog quantum platforms can reveal observables and dynamics of strongly correlated fermions, including pairing, long-range interactions and cooling. The seminar then examines universal quantum computation under global control, optimal-control methods for engineering effective interactions and topological dynamics, and approximate error correction designed for analog systems. Together, these approaches treat large quantum devices as adaptable computational resources whose capabilities extend beyond simulating a single model. Hybrid attendance: free in-person participation at Michigan Memorial Phoenix Project, Room 2000, 2301 Bonisteel Boulevard, Ann Arbor, MI 48109, USA, or join remotely through the Zoom link in the organizer page’s main event description. Thursday 8 October, 11:00–12:00 EDT (America/Detroit).