research: improving quantum evolution with temporal control and measurement
The lab is currently building its first experiment, which will comprise a locally interacting cesium Rydberg atom array interacting with photonic modes of a free-space Fabry-Perot optical cavity. This system will provide access to both local entanglement (from Rydberg interactions) as well as global entanglement (from the cavity), allowing us to study their interplay. Motivated by recent theoretical and experimental advancements in understanding the impact of quantum measurement, we are also interested in monitored systems, the impact of nonunitary dynamics on quantum evolution, and the development of feedback techniques on measurement. To this end, the experimental platform we are building should afford access to weak global measurement from the cavity, as well as projective local measurement from a combination of tweezer light, the optical cavity, and fluorescence measurement.
Some scientific ideas we are excited to pursue in the upcoming years include:
- Developing temporal control sequences to realize metrologically useful states in ways that are fast and robust to decoherence
- Using temporal control on an experimental platform to modify and study quantum critical behavior
- Exploring metrology at quantum critical points
- Understanding how measurement can impact dissipation in quantum systems
- Studying measurement-induced phase transitions and behavior at criticality
- Probing quantitatively how measurement can impact entanglement and correlation growth
- Finding routes to evolve novel quantum states, especially those exhibiting non-trivial topology, using measurement
- Realizing entanglement distillation and dilution protocols in the lab
Watch this space for expansion, photos, and results as the lab gets constructed! I am always interested in chatting with prospective students and postdocs about new and interesting directions to take the experiment in the lab.