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203 papers · 1 filter
Benchmarking weak randomness in Quantum and Natural Sources
Maciej Stankiewicz, Roberto Salazar, Mikołaj Czechlewski +7
Private randomness is a fundamental resource for cryptography, security proofs, and information processing. Quantum devices offer a unique advantage by amplifying weak randomness s…
Does Quantum Information Require Additional Structure?
Ryszard Horodecki
We consider the status of quantum information in the quantum theory and based on the correspondence principle, we propose an interpretation of the wave function as a mathematical r…
Entanglement of temporal sections as quantum histories and their quantum correlation bounds
Marcin Nowakowski
In this paper we focus on the underlying quantum structure of temporal correlations and show their peculiar nature which differentiate them from spatial quantum correlations. With…
Minimal-noise estimation of noncommuting rotations of a spin
Jakub Czartowski, Karol Życzkowski, Daniel Braun
We propose an analogue of interferometry to measure rotation of a spin by using two-spin squeezed states. Attainability of the Heisenberg limit for the estimation…
The Quantum Path Kernel: a Generalized Quantum Neural Tangent Kernel for Deep Quantum Machine Learning
Massimiliano Incudini, Michele Grossi, Antonio Mandarino +3
Building a quantum analog of classical deep neural networks represents a fundamental challenge in quantum computing. A key issue is how to address the inherent non-linearity of cla…
Two instances of random access code in the quantum regime
Nitica Sakharwade, Michał Studziński, Michał Eckstein +1
We consider two classes of quantum generalisations of Random Access Code (RAC) and study lower bounds for probabilities of success for such tasks. It provides a useful framework fo…