Search Results - "Tellander, Felix"
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1
Cohen-Macaulay Property of Feynman Integrals
Published in Communications in mathematical physics (01-04-2023)“…The connection between Feynman integrals and GKZ A -hypergeometric systems has been a topic of recent interest with advances in mathematical techniques and…”
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2
Symbol alphabets from the Landau singular locus
Published in The journal of high energy physics (01-10-2023)“…A bstract We provide evidence through two loops, that rational letters of polylogarithmic Feynman integrals are captured by the Landau equations, when the…”
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3
On the Uniqueness Problem for Quadrature Domains
Published in Computational methods and function theory (01-09-2021)“…We study questions of existence and uniqueness of quadrature domains using computational tools from real algebraic geometry. These problems are transformed…”
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4
Tropical Feynman integration in the Minkowski regime
Published in Computer physics communications (01-11-2023)“…We present a new computer program, feyntrop, which uses the tropical geometric approach to evaluate Feynman integrals numerically. In order to apply this…”
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5
UV-complete Gauged Anomaly-free U(1) Froggatt-Nielsen Model
Published 30-11-2023“…We investigate the possibility of understanding all fermion masses and mixings within a gauged Froggatt-Nielsen framework. Continuing the work from [J…”
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6
Non-Hermitian Wave Mechanics: An Unorthodox Way into Embedded Systems
Published in Journal of young investigators (2017)“…This review outlines an unconventional but timely formulation of quantum dynamics of systems in contact with an environment. This alternative approach to…”
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7
Cohen-Macaulay Property of Feynman Integrals
Published 02-05-2022“…The connection between Feynman integrals and GKZ $A$-hypergeometric systems has been a topic of recent interest with advances in mathematical techniques and…”
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8
The two-loop Amplituhedron
Published 15-10-2024“…The loop-Amplituhedron $\mathcal{A}^{(L)}_{n}$ is a semialgebraic set in the product of Grassmannians $\mathrm{Gr}_{\mathbb{R}}(2,4)^L$. Recently, many aspects…”
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9
Landau Singularities from Whitney Stratifications
Published 22-02-2024“…We demonstrate that the complete and non-redundant set of Landau singularities of Feynman integrals may be explicitly obtained from the Whitney stratification…”
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10
Tropical Feynman integration in the physical region
Published 30-10-2023“…PoS Volume 449 (EPS-HEP2023) The software feyntrop for direct numerical evaluation of Feynman integrals is presented. We focus on the underlying combinatorics…”
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11
Tropical Feynman integration in the Minkowski regime
Published 18-08-2023“…Computer Physics Communications, Volume 292, 2023, 108874 We present a new computer program, $\texttt{feyntrop}$, which uses the tropical geometric approach to…”
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12
Anomaly-free Model Building with Algebraic Geometry
Published 29-08-2019“…Phys. Rev. D 100, 055032 (2019) We present a method to find anomaly-free gauged Froggatt-Nielsen type models using results from algebraic geometry. These…”
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13
Probability Current and a Simulation of Particle Separation
Published in Journal of young investigators (2016)“…The structure of scattered wave fields and currents is of interest in a variety of fields within physics such as quantum mechanics and optics. Traditionally…”
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14
Symbol Alphabets from the Landau Singular Locus
Published 27-10-2023“…We provide evidence through two loops, that rational letters of polylogarithmic Feynman integrals are captured by the Landau equations, when the latter are…”
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15
On the Uniqueness Problem for Quadrature Domains
Published 11-05-2021“…Computational Methods and Function Theory (2021) We study questions of existence and uniqueness of quadrature domains using computational tools from real…”
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16
Tertiary particle production and target optimization of the H2 beam line in the SPS North Area
Published 27-10-2016“…In this note, the tertiary particle yield from secondary targets of different materials placed at the 'filter' position of the H2 beam line of SPS North Area…”
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