3 papers
quant-ph2026
Quantum Tilted Loss in Variational Optimization: Theory and Applications
Yixian Qiu, Josep Lumbreras, Xiufan Li +1
Variational quantum algorithms (VQAs) are leading strategies for using near-term quantum devices, with a well-studied bottleneck being their trainability. Standard expectation-valu…
quant-ph2025
Quantum Learning with Tunable Loss Functions
Yixian Qiu, Lirandë Pira, Patrick Rebentrost
Learning from quantum data presents new challenges to the paradigm of learning from data. This typically entails the use of quantum learning models to learn quantum processes that…
quant-ph2025
The Quantum Esscher Transform
Yixian Qiu, Kelvin Koor, Patrick Rebentrost
The Esscher Transform is a tool of broad utility in various domains of applied probability. It provides the solution to a constrained minimum relative entropy optimization problem.…