11 papers
Spin-coherent quantum designs
Marcin Rudziński, Aaron Z. Goldberg, Andrei B. Klimov +2
Coherent states bridge the gap between quantum and classical physics, but their overcomplete and nonorthogonal nature makes it difficult to identify the minimal discrete set needed…
Benchmarking quantum devices beyond classical capabilities
RafaÅ BistroÅ, Rafał Bistroń, Marcin RudziÅski +4
Rapid development of quantum computing technology has led to a wide variety of sophisticated quantum devices. Benchmarking these systems becomes crucial for understanding their cap…
Quantum Resource Theories beyond Convexity
Roberto Salazar, Jakub Czartowski, Ricard Ravell RodrÃguez +3
A class of quantum resource theories, based on non-convex star-shape sets, presented in this work captures the key quantum properties that cannot be studied by standard convex theo…
Quantum convolutional channels and multiparameter families of 2-unitary matrices
RafaÅ BistroÅ, Jakub Czartowski, Karol Å»yczkowski
Many alternative approaches to construct quantum channels with large entangling capacity were proposed in the past decade, resulting in multiple isolated gates. In this work, we pu…
Product Weyl-Heisenberg covariant MUBs and Maximizers of Magick
Bogdan S. Damski, RafaÅ BistroÅ, Diego Ponterio +2
In this work we investigate discrete structures in product Hilbert spaces. For monopartite systems of size one relies on the Weyl-Heisenberg group , while in the case of…
Random matrix perspective on probabilistic error cancellation
Leonhard Moske, Pedro Ribeiro, Tomaž Prosen +3
Probabilistic error cancellation is an attempt to reverse the effect of dissipative noise channels on quantum computers by applying unphysical channels after the execution of a qua…