Physics Colloquium: Title: Universal Phenomena in Quantum Many-Body Physics from Quantum Information Science
- Event Type
- Lecture
- Sponsor
- Department of Physics
- Location
- Loomis Lab 141 and via Zoom
- Virtual
- Join online
- Date
- Sep 6, 2023 4:00 pm
- Speaker
- 2022 McMillan Award Winner Sagar Vijay (UCSB)
- Contact
- Kelly Darr
- khdarr@illinois.edu
- Phone
- 12173007821
- Views
- 372
- Originating Calendar
- Physics - Colloquium
Fundamental concepts from quantum information science are playing an increasingly important role in uncovering universal properties of macroscopic quantum systems, a central goal of quantum condensed matter physics. Recently-forged connections between these disciplines are specifically driving an understanding of highly-entangled, equilibrium phases of quantum matter, and revealing universal structures governing quantum many-body systems that have been driven far from their ground-state. I will review some of these important ideas, before showing how tools from quantum information science have led to very recent progress in our understanding of how to foster novel, quantum-coherent phenomena in near-term "quantum simulators", quantum many-body platforms that can be manipulated by an external observer using unitary evolution, measurements, and feedback. Harnessing these elements can produce new mixed-states of macroscopic quantum matter with long-range-order, entanglement, and criticality, which nevertheless coexist with extensive entropy.