Dissipative Preparation of Thermal and Ground States
Institute for Pure & Applied Mathematics (IPAM) via YouTube
Overview
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Explore dissipative quantum state preparation methods in this 43-minute conference talk from IPAM's New Frontiers in Quantum Algorithms for Open Quantum Systems Workshop. Learn how dissipation, inspired by natural cooling processes, serves as a powerful paradigm for preparing low-energy quantum states through repeated mid-circuit measurements rather than traditional coherent evolution approaches. Discover recent advances including Kubo-Martin-Schwinger (KMS) detailed-balanced Lindbladians and protocols for dissipative ground state preparation that provide both efficient algorithms and end-to-end runtime guarantees measured by mixing time. Understand how these protocols can be simplified for implementation on early fault-tolerant quantum devices while maintaining efficiency, and examine the fundamental differences between dissipative methods and conventional quantum algorithms that rely on final measurement and postselection.
Syllabus
Lin Lin - Dissipative Preparation of Thermal and Ground States - IPAM at UCLA
Taught by
Institute for Pure & Applied Mathematics (IPAM)