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pro vyhledávání: '"Larsson Jan"'
The Toffoli is an important universal quantum gate, and will alongside the Clifford gates be available in future Fault-Tolerant Quantum Computing hardware. Many quantum algorithms rely on performing arbitrarily small single-qubit rotations for their
Externí odkaz:
http://arxiv.org/abs/2410.18746
Recursive Fourier Sampling (RFS) is one of the earliest problems demonstrating a quantum advantage, and is known to lie outside the Merlin-Arthur complexity class. This paper contains a description of the phenomenon of phase kickback and its use in R
Externí odkaz:
http://arxiv.org/abs/2408.15938
Quantum machine learning (QML) aims to use quantum computers to enhance machine learning, but it is often limited by the required number of samples due to quantum noise and statistical limits on expectation value estimates. While efforts are made to
Externí odkaz:
http://arxiv.org/abs/2406.04944
Publikováno v:
Phys. Rev. Research 6, L042027 (2024)
We propose a direct (non-recursive) algorithm for applying a rotation $R_{\theta^\ast}$, $\epsilon$-close to a desired rotation $R_\theta$, to a single qubit using the Clifford+Toffoli gate set. Our algorithm does not rely on repeatedly applying a fi
Externí odkaz:
http://arxiv.org/abs/2404.05618
The field of Quantum Machine Learning (QML) has emerged recently in the hopes of finding new machine learning protocols or exponential speedups for classical ones. Apart from problems with vanishing gradients and efficient encoding methods, these spe
Externí odkaz:
http://arxiv.org/abs/2310.10629
Publikováno v:
Phys. Rev. Lett. 129, 130401 (2022)
The most well-known tool for studying contextuality in quantum computation is the n-qubit stabilizer state tableau representation. We provide an extension that describes not only the quantum state, but is also outcome deterministic. The extension ena
Externí odkaz:
http://arxiv.org/abs/2202.05081
Publikováno v:
Rev. Mod. Phys. 94, 045007 (2022)
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In short, it states that quantum mechanics is in conflict with classical models in which the result of a measurement does not depend on which other compatible mea
Externí odkaz:
http://arxiv.org/abs/2102.13036
Publikováno v:
In: Plotnitsky, A., Haven, E. (eds) The Quantum-Like Revolution. Springer, Cham (2023)
We propose a conjugate logic that can capture the behavior of quantum and quantum-like systems. The proposal is similar to the more generic concept of epistemic logic: it encodes knowledge or perhaps more correctly, predictions about outcomes of futu
Externí odkaz:
http://arxiv.org/abs/2102.06572
Publikováno v:
Health and Quality of Life Outcomes, Vol 10, Iss 1, p 149 (2012)
Abstract Background Major depressive disorder is prevalent in the adolescent psychiatric clinical setting and often comorbid with other primary psychiatric diagnoses such as ADHD or social anxiety disorder. Systematic manual-based diagnostic procedur
Externí odkaz:
https://doaj.org/article/daf997edeaad4fc9946bfe71065262b3
Publikováno v:
Health and Quality of Life Outcomes, Vol 8, Iss 1, p 58 (2010)
Abstract Background The Sense of Coherence (SOC) scale is assumed to measure a distinct salutogenic construct separated from measures of anxiety and depression. Our aim was to challenge this concept. Methods The SOC-scale, Beck's Depression Inventory
Externí odkaz:
https://doaj.org/article/7be7365b1e584d84922e414207211c21