activity
20242026
collaborators

5 papers

quant-ph2026

Privacy Implies Stability: Information-Theoretic Generalization Bounds for Quantum Learning

Ayanava Dasgupta, Naqueeb Ahmad Warsi, Masahito Hayashi

We develop an information-theoretic framework connecting stability, privacy, and generalization for quantum learning algorithms. Learning procedures are modeled as quantum instrume…

quant-ph2026

Quantum Information Ordering and Differential Privacy

Naqueeb Ahmad Warsi, Ayanava Dasgupta, Masahito Hayashi

We study quantum differential privacy (QDP) by defining a notion of the order of informativeness between pairs of quantum states. In particular, we show that if the hypothesis test…

quant-ph2025

Generalization Bounds for Quantum Learning via Rényi Divergences

Naqueeb Ahmad Warsi, Ayanava Dasgupta, Masahito Hayashi

This work advances the theoretical understanding of quantum learning by establishing a new family of upper bounds on the expected generalization error of quantum learning algorithm…

quant-ph2025

Predicting symmetries of quantum dynamics with optimal samples

Masahito Hayashi, Yu-Ao Chen, Chenghong Zhu +1

Identifying symmetries in quantum dynamics, such as identity or time-reversal invariance, is a crucial challenge with profound implications for quantum technologies. We introduce a…

quant-ph2024

Universal tester for multiple independence testing and classical-quantum arbitrarily varying multiple access channel

Ayanava Dasgupta, Naqueeb Ahmad Warsi, Masahito Hayashi

We study two kinds of different problems. One is the multiple independence testing, which can be considered as a kind of generalization of quantum Stein's lemma. We test whether th…