10 citations · 17 across the 6 of their papers we have counts for
8 papers · 1 filter
Robust classical and quantum communication over almost-iid channels
Liuhang Ye, Bjarne Bergh, Nilanjana Datta
The independent and identically distributed (iid) paradigm for asymptotic communication through quantum channels describes uses of a channel by . Since exact…
Quantum de Finetti theorems for states and channels in any distance measure
Liuhang Ye, Bjarne Bergh, Nilanjana Datta
Standard finite quantum de Finetti theorems approximate the -system marginals of permutation-invariant states of -systems by mixtures of independent and identically distribut…
Onset of superactivation of quantum capacity
Marco Parentin, Bjarne Bergh, Nilanjana Datta +1
Superactivation of quantum capacity is the phenomenon whereby two quantum channels, each with zero quantum capacity, can exhibit a strictly positive capacity when used in tandem. I…
Strong converse bounds on the classical identification capacity of the qubit depolarizing channel
Liuhang Ye, Bjarne Bergh, Nilanjana Datta
A strong converse bound for the classical identification capacity of a quantum channel is an upper bound on the asymptotic identification rate of classical messages sent through th…
Generalized Quantum Stein's Lemma and Reversibility of Quantum Resource Theories for Classical-Quantum Channels
Bjarne Bergh, Nilanjana Datta, Anirudh Khaitan
We extend the recent proof of the Generalized Quantum Stein's Lemma by Hayashi and Yamasaki [arXiv:2408.02722] to classical-quantum (c-q) channels. We analyze the composite hypothe…
Robustness of Fixed Points of Quantum Channels and Application to Approximate Quantum Markov Chains
Robert Salzmann, Bjarne Bergh, Nilanjana Datta
Given a quantum channel and a state which satisfy a fixed point equation approximately (say, up to an error ), can one find a new channel and a state, which are respec…
An invitation to the sample complexity of quantum hypothesis testing
Hao-Chung Cheng, Nilanjana Datta, Nana Liu +3
Quantum hypothesis testing (QHT) has been traditionally studied from the information-theoretic perspective, wherein one is interested in the optimal decay rate of error probabiliti…
Guesswork with Quantum Side Information
Eric P. Hanson, Vishal Katariya, Nilanjana Datta +1
What is the minimum number of guesses needed on average to correctly guess a realization of a random variable? The answer to this question led to the introduction of the notion of…