1 citations · 1 across the 6 of their papers we have counts for
7 papers · 2 filters
Entanglement Detection with Rotationally Covariant Measurements -- From Compton Scattering to Lemonade
Marlene Funck, Ilija Funk, Tizian Schmidt +1
The accurate and efficient detection of quantum entanglement remains a central challenge in quantum information science. In this work, we study the detection of entanglement of pol…
Simultaneous variances of Pauli strings, weighted independence numbers, and a new kind of perfection of graphs
Zhen-Peng Xu, Jie Wang, Qi Ye +3
A set of Pauli stings is well characterized by the graph that encodes its commutatitivity structure, i.e., by its frustration graph. This graph provides a natural interface between…
Deep-Circuit QAOA
Gereon KoÃmann, Lennart Binkowski, Lauritz van Luijk +2
Despite its popularity, several empirical and theoretical studies suggest that the quantum approximate optimization algorithm (QAOA) has persistent issues in providing a substantia…
Reliable Entropy Estimation from Observed Statistics for Device-Independent Quantum Cryptography
Gereon KoÃmann, René Schwonnek
This paper introduces a numerical framework for establishing lower bounds on the conditional von-Neumann entropy in device-independent quantum cryptography and randomness extractio…
Optimising the relative entropy under semidefinite constraints
Gereon KoÃmann, René Schwonnek
Finding the minimal relative entropy of two quantum states under semidefinite constraints is a pivotal problem located at the mathematical core of various applications in quantum i…
From barren plateaus through fertile valleys: Conic extensions of parameterised quantum circuits
Lennart Binkowski, Gereon KoÃmann, Tobias J. Osborne +2
Optimisation via parameterised quantum circuits is the prevalent technique of near-term quantum algorithms. However, the omnipresent phenomenon of barren plateaus - parameter regio…