1 citations · 1 across the 4 of their papers we have counts for
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Nonadditivity in fermionic quantum Shannon theory
Farzin Salek, Amir-Reza Negari, Graeme Smith +2
We study collective state preparation and channel encoding in fermionic systems under parity superselection and composition governed by the canonical anticommutation relations. For…
From Permutation Symmetry to Communication Bounds and Additivity
Zahra Baghali Khanian, Debbie Leung, Graeme Smith
Correlations across channel uses can improve quantum communication rates, making optimization over arbitrarily large blocks a central difficulty in determining quantum capacity. We…
Counterexamples to additivity of minimum output -Rényi entropy of quantum channels for all
Debbie Leung, Benjamin Lovitz, Ion Nechita +1
The additivity of minimum output entropies is a central problem in quantum information theory. Nonadditivity is known for every Rényi order , at the von Neumann point , a…
On Error Thresholds for Pauli Channels: Some answers with many more questions
Avantika Agarwal, Alan Bu, Amolak Ratan Kalra +3
This paper focuses on error thresholds for Pauli channels. We numerically compute lower bounds for the thresholds using the analytic framework of coset weight enumerators pioneered…