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quant-ph2025
A Linearly Convergent Algorithm for Computing the Petz-Augustin Mean
Chun-Neng Chu, Wei-Fu Tseng, Yen-Huan Li
We study the computation of the Petz-Augustin mean of order , defined as the minimizer of a weighted sum of Petz-Rényi divergences of order o…
quant-ph2025
Online Learning Quantum States with the Logarithmic Loss via VB-FTRL
Wei-Fu Tseng, Kai-Chun Chen, Zi-Hong Xiao +1
Online learning of quantum states with the logarithmic loss (LL-OLQS) is a quantum generalization of online portfolio selection (OPS), a classic open problem in online learning for…