5 papers · 1 filter
Transmitting algebras through quantum channels
Robert Salzmann, Satvik Singh
We develop a theory of exact transmission of finite-dimensional -algebras through quantum channels. These algebras describe hybrid classical-quantum information, allowing the…
The entanglement-assisted transmission capacity is a strong converse bound for identification
Satvik Singh
Classical identification via a noisy channel is a communication task in which the receiver is not required to reconstruct the full transmitted message, but only to decide whether i…
A short proof of the modified Kretschmann-Schlingemann-Werner conjecture
Satvik Singh
Let be two quantum channels with respective Stinespring isometries $V_1, V_2 : \mathbb{C}^{d}\to \mathbb{C}^{n} \o…
Gaussian mean width strong converse bound on the classical identification capacity of quantum channels
Satvik Singh
We establish a single-letter and efficiently computable strong converse bound on the classical identification capacity of quantum channels. By equipping the -fold channel output…
Discriminating idempotent quantum channels
Satvik Singh, Bjarne Bergh
We study binary discrimination of idempotent quantum channels. When the two channels share a common full-rank invariant state, we show that a simple image inclusion condition compl…