When
Where
Title
Universality in the Collective Behavior of Open Quantum Systems
Abstract
When many particles share a common environment, dissipation and fluctuations become resources for emergent and complex behavior. In this talk, I will discuss how macroscopic quantum coherence arises due to correlated decay in open quantum systems. I will begin by presenting an overview of our research over the past few years, starting with our early work on Dicke superradiance in extended systems [1,2]—a decades-long open problem in many-body quantum optics. Our theoretical predictions have recently been experimentally validated through the observation of superradiance in atomic arrays. Building upon this foundation, I will introduce our recent discovery of universal scaling laws for correlated decay that apply broadly to a large class of Markovian quantum systems [3]. These scaling laws open new directions for fault-tolerant quantum computing, precision metrology, and the understanding of out-of-equilibrium phase transitions. Finally, I will present experimentally-relevant examples where many-body decay offers new ways to control and manipulate open quantum systems.
[1] S. J. Masson, A. Asenjo-Garcia, Nat. Commun. 13, 2285 (2022)
[2] S. Cardenas-Lopez, S. J. Masson, Z. Zager, A. Asenjo-Garcia, PRL 131, 033605 (2023)
[3] W.-K. Mok, A. Poddar, E. Sierra, C. C. Rusconi, J. Preskill, A. Asenjo-Garcia, arXiv:2406.00722 (2024)
Bio
Bio: Ana Asenjo-Garcia is an Associate Professor of Physics at Columbia University, which she joined in 2019. Her research focuses on theoretical quantum optics and its intersection with many-body physics and quantum information science. She received her Ph.D. in Physics from Universidad Complutense de Madrid in 2014. Before joining Columbia, she was a Marie Curie postdoctoral fellow at the Institute of Photonic Sciences (ICFO) in Barcelona, and an IQIM Fellow at the Institute of Quantum Information and Matter at Caltech. Her work has been recognized with awards such as the Packard Fellowship, the Sloan Fellowship, the NSF CAREER Award, the AFOSR Young Investigator Prize, and the IUPAP Early Career Scientist Prize in AMO Physics.
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