A many-body physics perspective on quantum error correction

Abstract: 

Quantum computers hold transformative promise for both scientific and real-world applications, but their practical operation is often hindered by errors and decoherence. In this talk, I will discuss how the co-design of quantum hardware and algorithms creates new opportunities with today’s non-fault-tolerant devices. First, focusing on one such computational platform—neutral atom arrays—I will explore the design of a topological qubit and demonstrate how it enables robust quantum information processing. Then, inspired by recent advances in many-body quantum dynamics, I will examine certain fundamentally out-of-equilibrium dynamical critical phenomena in quantum and classical systems. I will show how these phenomena can be harnessed for quantum state preparation in both analog systems and quantum circuits incorporating measurement and feedback, offering a scalable route to passive quantum error correction.

Bio: 

Rhine Samajdar is a Princeton Quantum Initiative Postdoctoral Fellow in the Department of Physics and PCTS at Princeton University. His research interests lie at the interface of theoretical quantum information science, condensed matter physics, and atomic, molecular, and optical physics. Prior to joining Princeton, he obtained his PhD in Physics from Harvard University in 2022 working with Subir Sachdev. His work has demonstrated how quantum computation can be used to realize, probe, and control novel phases of quantum matter, providing new insights into topological architectures, quantum algorithms, and nonequilibrium dynamics.

Learn More:

• About Rhine's research: https://pcts.princeton.edu/people/rhine-samajdar