The FIND Seminar is a bi-weekly seminar series that hosts cutting-edge research talks on topics related to the broad themes of Foundations of Information, Networks and Decision Systems. Talks are about 50 minutes long with time for questions and discussion.
Location: Rhodes Hall 310 and Zoom
Time: 4:15PM ET, bi-weekly on (alternating) Thursdays
Delivery format: All talks will have a live audience in Rhodes Hall 310. Until circumstances allow otherwise, external speakers will give the talk remotely via Zoom (broadcasted in RH310). Remote audience is also welcome, but in-person participation is encouraged.
Mailing list: To subscribe to the FIND seminar mailing list, email find-seminar-l-request@cornell.edu, with “join” in the subject line and a blank email body. All talks info and reminders will be sent via the mailing list.
Upcoming Talk
Title: Quantum-enhanced multiparameter sensing in a single mode
Speaker: Zixin Huang
Date and Time: 10/23/2025, 4:15PM ET
Location: Rhodes Hall 310 and Zoom
Abstract:
Precise measurements underpin scientific and technological advancements. Quantum mechanics provides an avenue to enhance precision, but it comes with a restriction: Incompatible observables, such as position and momentum, cannot be simultaneously measured to arbitrary accuracy as decreed by Heisenberg’s uncertainty principle. This restriction can be bypassed by instead measuring commuting modular observables, which are counterparts to the naturally incompatible observables. Here, we measure modular observables to estimate small changes in position and momentum with a single-mode multiparameter sensor. We deterministically prepare grid states in the mechanical motion of a trapped ion and demonstrate uncertainties in position and momentum below the standard quantum limit (SQL). Further, we examine another pair of incompatible observables—number and phase. We prepare a different resource—number-phase states—and demonstrate a metrological gain over the SQL. These results introduce previously unidentified measurement capabilities unavailable to classical systems and mark a substantial step in quantum metrology.
https://www.science.org/doi/10.1126/sciadv.adw9757
Fall 2025 seminars:
| Date | Speaker | Title |
| 08/26/2025 | Mark Wilde | Quantum thermodynamics and semi-definite optimization |
| 10/23/2025 | Zixin Huang | Quantum-enhanced multiparameter sensing in a single mode |
A list of previous talks can be found here.