115 citations · 813 across the 32 of their papers we have counts for
3 papers · 1 filter
Approaches for approximate additivity of the Holevo information of quantum channels
Felix Leditzky, Eneet Kaur, Nilanjana Datta +1
We study quantum channels that are close to another channel with weakly additive Holevo information and derive upper bounds on their classical capacity. Examples of channels with w…
Quantum and private capacities of low-noise channels
Felix Leditzky, Debbie Leung, Graeme Smith
We determine both the quantum and the private capacities of low-noise quantum channels to leading orders in the channel's distance to the perfect channel. It has been an open probl…
Useful states and entanglement distillation
Felix Leditzky, Nilanjana Datta, Graeme Smith
We derive general upper bounds on the distillable entanglement of a mixed state under one-way and two-way LOCC. In both cases, the upper bound is based on a convex decomposition of…