473 citations · 666 across the 9 of their papers we have counts for
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quant-ph2022★ 10 cited
Concentration bounds for quantum states and limitations on the QAOA from polynomial approximations
Anurag Anshu, Tony Metger
We prove concentration bounds for the following classes of quantum states: (i) output states of shallow quantum circuits, answering an open question from [DPMRF22]; (ii) injective…
quant-ph2022★ 52 cited
Security of quantum key distribution from generalised entropy accumulation
Tony Metger, Renato Renner
The goal of quantum key distribution (QKD) is to establish a secure key between two parties connected by an insecure quantum channel. To use a QKD protocol in practice, one has to…
quant-ph2022★ 37 cited
Generalised entropy accumulation
Tony Metger, Omar Fawzi, David Sutter +1
Consider a sequential process in which each step outputs a system and updates a side information register . We prove that if this process satisfies a natural "non-signalli…