Search Results for author: Nilanjana Datta

Found 5 papers, 2 papers with code

An invitation to the sample complexity of quantum hypothesis testing

no code implementations26 Mar 2024 Hao-Chung Cheng, Nilanjana Datta, Nana Liu, Theshani Nuradha, Robert Salzmann, Mark M. Wilde

By making use of the wealth of knowledge that already exists in the literature on QHT, we characterize the sample complexity of binary QHT in the symmetric and asymmetric settings, and we provide bounds on the sample complexity of multiple QHT.

LEMMA

The $α\to 1$ Limit of the Sharp Quantum Rényi Divergence

no code implementations12 Feb 2021 Bjarne Bergh, Robert Salzmann, Nilanjana Datta

Fawzi and Fawzi recently defined the sharp R\'enyi divergence, $D_\alpha^\#$, for $\alpha \in (1, \infty)$, as an additional quantum R\'enyi divergence with nice mathematical properties and applications in quantum channel discrimination and quantum communication.

Quantum Physics Mathematical Physics Mathematical Physics

Guesswork with Quantum Side Information

1 code implementation10 Jan 2020 Eric P. Hanson, Vishal Katariya, Nilanjana Datta, Mark M. Wilde

What is the minimum number of guesses needed on average to correctly guess a realization of a random variable?

Quantum Physics

A continuity bound for the expected number of connected components of a random graph: a model for epidemics

no code implementations11 Dec 2019 Koenraad Audenaert, Eric P. Hanson, Nilanjana Datta

We consider a stochastic network model for epidemics, based on a random graph proposed by Ross [Journal of Applied Probability, 18, 309-315 (1981)].

Probability Combinatorics

Maximum and minimum entropy states yielding local continuity bounds

1 code implementation7 Jun 2017 Eric P. Hanson, Nilanjana Datta

Computing the entropy of these states leads to a local strengthening of the continuity bound of the von Neumann entropy, i. e., the Audenaert-Fannes inequality.

Quantum Physics Mathematical Physics Mathematical Physics

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