Theoretical Physics · Quantum Information · Machine Learning
Kangqiao Liu 刘康桥
I study fluctuations, information, response, and complexity across nonequilibrium, quantum, gravitational, and learning systems.
Academic profiles
Research landscape
One language across different physical systems.
My work connects stochastic dynamics, quantum information, gravitation, and learning through response bounds, fluctuations, transport, and instability.
01 / NONEQUILIBRIUM Statistical physics and machine learning Kinetic uncertainty relations, stochastic response, and the dynamics of finite-learning-rate SGD. 02 / QUANTUM Quantum information and thermodynamics Quantum response bounds, information engines, random access codes, and Maxwell's demon. 03 / GRAVITATION Black-hole dynamics and chaos Lyapunov-exponent bounds and spinning-particle dynamics in Kerr–Newman spacetimes.
Recent work
Current research, directly accessible.
Selected recent results. The complete record, journal links, preprints, PDFs, and supplements are available on the publications page.
2026 · QUANTUM INFORMATION Classical codes violate the conjectured square-root bound for quantum random access codes 2026 · GRAVITATION Bound on Lyapunov exponents with spinning particles in Kerr–Newman spacetimes 2026 · OPEN QUANTUM SYSTEMS Response kinetic uncertainty relation for Markovian open quantum systems
Affiliation
Xihua University
Key Laboratory of High Performance Scientific Computation
物理学讲师 · 西华大学理学院
Contact
Email
kqliu-AT-xhu.edu.cn (replace -AT- by @)
Office
6D416
Address
Chengdu, Sichuan, China 610039