712 citations · 1k across the 17 of their papers we have counts for
17 papers
Computing key rates for one-sided device-independent quantum key distribution
Andreas Bluhm, Gereon Koßmann, Martin Sandfuchs +3
The defining feature of one-sided device-independent quantum key distribution is its asymmetric trust model in which only one party is characterized. This scenario sets an interest…
Commuting operations factorise
Renato Renner, Ramona Wolf
Consider two agents, Alice and Bob, each of whom takes a quantum input, operates on a shared quantum system , and produces a quantum output. Alice and Bob's operations may commu…
The debate over QKD: A rebuttal to the NSA's objections
Renato Renner, Ramona Wolf
A recent publication by the NSA assessing the usability of quantum cryptography has generated significant attention, concluding that this technology is not recommended for use. Her…
Coherent attacks are stronger than collective attacks on DIQKD with random postselection
Martin Sandfuchs, Ramona Wolf
In a recent paper [Phys. Rev. Lett. 129, 050502 (2022)], the authors report on the implementation of a device-independent QKD protocol with random postselection, which was original…
Security of differential phase shift QKD from relativistic principles
Martin Sandfuchs, Marcus Haberland, V. Vilasini +1
The design of quantum protocols for secure key generation poses many challenges: On the one hand, they need to be practical concerning experimental realisations. On the other hand,…
Quantum Advantage in Cryptography
Renato Renner, Ramona Wolf
Ever since its inception, cryptography has been caught in a vicious circle: Cryptographers keep inventing methods to hide information, and cryptanalysts break them, prompting crypt…
A critical lattice model for a Haagerup conformal field theory
Robijn Vanhove, Laurens Lootens, Maarten Van Damme +4
We use the formalism of strange correlators to construct a critical classical lattice model in two dimensions with the \emph{Haagerup fusion category} as input data…
Computing associators of endomorphism fusion categories
Daniel Barter, Jacob C. Bridgeman, Ramona Wolf
Many applications of fusion categories, particularly in physics, require the associators or -symbols to be known explicitly. Finding these matrices typically involves solving va…
Microscopic Models for Fusion Categories
Ramona Wolf
This is a PhD Thesis on the connection between subfactors (more precisely, their corresponding fusion categories) and Conformal Field Theory (CFT). Besides being a mathematically i…
Device-Independent Quantum Key Distribution with Random Key Basis
Rene Schwonnek, Koon Tong Goh, Ignatius W. Primaatmaja +4
Device-independent quantum key distribution (DIQKD) is the art of using untrusted devices to distribute secret keys in an insecure network. It thus represents the ultimate form of…
Generalized string-nets for unitary fusion categories without tetrahedral symmetry
Alexander Hahn, Ramona Wolf
The Levin-Wen model of string-net condensation explains how topological phases emerge from the microscopic degrees of freedom of a physical system. However, the original constructi…
Gauging Defects in Quantum Spin Systems
Jacob C. Bridgeman, Alexander Hahn, Tobias J. Osborne +1
The goal of this work is to build a dynamical theory of defects for quantum spin systems. A kinematic theory for an indefinite number of defects is first introduced exploiting dist…
The F-Symbols for the H3 Fusion Category
Tobias J. Osborne, Deniz E. Stiegemann, Ramona Wolf
We present a solution for the F-symbols of the H3 fusion category, which is Morita equivalent to the even parts of the Haagerup subfactor. This solution has been computed by solvin…
Efficient Learning for Deep Quantum Neural Networks
Kerstin Beer, Dmytro Bondarenko, Terry Farrelly +3
Neural networks enjoy widespread success in both research and industry and, with the imminent advent of quantum technology, it is now a crucial challenge to design quantum neural n…
From categories to anyons: a travelogue
Kerstin Beer, Dmytro Bondarenko, Alexander Hahn +8
In this paper we provide an overview of category theory, focussing on applications in physics. The route we follow is motivated by the final goal of understanding anyons and topolo…
Entanglement detection by violations of noisy uncertainty relations: A proof of principle
Yuan-Yuan Zhao, Guo-Yong Xiang, Xiao-Min Hu +5
It is well-known that the violation of a local uncertainty relation can be used as an indicator for the presence of entanglement. Unfortunately, the practical use of these non-line…
Quantum Key Distribution in the Non-Asymptotic Regime
Ramona Wolf
This is a Bachelor's thesis on quantum key distribution in the non-asymptotic regime submitted to the Leibniz Universität Hannover, Germany. It deals with the question how to gener…