Double-Bracket Quantum Algorithms for Quantum Imaginary-Time Evolution

Watch a 67-minute seminar presentation where Marek Gluza from Nanyang Technological University Singapore delivers a detailed tutorial on finding unitary circuits that approximate imaginary-time evolution. Learn about the derivation of double-bracket flow equations, fluctuation-refrigeration relations, and steepest-descent links applicable to imaginary-time evolution. Explore how circuit synthesis based on double-bracket flow can improve any ground-state preparation unitary through a warm-start approach. Understand these complex differential geometry concepts presented in an accessible format relevant to physics applications. Based on research from the preprint "Double-bracket quantum algorithms for quantum imaginary-time evolution," this quantum computing seminar was presented at the Centrum Fizyki Teoretycznej PAN as part of their Quantum Information and Quantum Computing Seminars series.