Results 11 to 20 of about 8,030 (311)
One-loop matching of CP-odd four-quark operators to the gradient-flow scheme
Journal of High Energy Physics, 2023 The translation of experimental limits on the neutron electric dipole moment into constraints on heavy CP-violating physics beyond the Standard Model requires knowledge about non-perturbative matrix elements of effective operators, which ideally should ...
Jona Bühler, Peter Stoffer
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A Note of Jessen’s Inequality and Their Applications to Mean-Operators
Mathematics, 2022 A variant of Jessen’s type inequality for a semigroup of positive linear operators, defined on a Banach lattice algebra, is obtained. The corresponding mean value theorems lead to a new family of mean-operators.
Gul I Hina Aslam +2 more
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Convexity of charged operators in CFTs with multiple Abelian symmetries
Journal of High Energy Physics, 2022 Motivated by the Weak Gravity Conjecture in the context of holography in AdS, it has been proposed that operators charged under global symmetries in CFTs, in three dimensions or higher, should satisfy certain convexity properties on their spectrum. A key
Eran Palti, Adar Sharon
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Renormalization and mixing of the Gluino-Glue operator on the lattice
European Physical Journal C: Particles and Fields, 2021 We study the mixing of the Gluino-Glue operator in $$\mathcal{N}=1$$ N = 1 Supersymmetric Yang–Mills theory (SYM), both in dimensional regularization and on the lattice.
M. Costa +3 more
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Journal of Operators, 2014 A bounded linear operator T on a Hilbert space ℋ is trace class if its singular values are summable. The trace class operators on ℋ form an operator ideal and in the case that ℋ is finite-dimensional, the trace tr(T) of T is given by ∑jajj for any matrix representation {aij} of T.
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Toward learning Lattice Boltzmann collision operators
The European Physical Journal E, 2023 Abstract In this work, we explore the possibility of learning from data collision operators for the Lattice Boltzmann Method using a deep learning approach. We compare a hierarchy of designs of the neural network (NN) collision operator and evaluate the performance of the resulting LBM method in reproducing time ...
Corbetta, Alessandro +5 more
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Orness For Idempotent Aggregation Functions
Axioms, 2017 Aggregation functions are mathematical operators that merge given data in order to obtain a global value that preserves the information given by the data as much as possible.
Leire Legarreta +2 more
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Lattice renormalization of quark operators [PDF]
Nuclear Physics B - Proceedings Supplements, 1998 We have technically improved the non-perturbative renormalization method, proposed by Martinelli et al., by using quark momentum sources and sinks. Composite two-fermion operators up to three derivatives have been measured for Wilson fermions and Sheikholeslami-Wohlert improved fermions in the quenched approximation.
Goeckeler, M. +6 more
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On Lattice Summing Operators [PDF]
Proceedings of the American Mathematical Society, 1983 Given a Banach space E E and a Banach lattice L L , necessary and sufficient conditions on E E and L L are given such that every lattice summing operator T : E → L T:E \to L (cf. Introduction) is absolutely summing.
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Baryonic operators for lattice simulations [PDF]
Nuclear Physics B - Proceedings Supplements, 2004 The construction of baryonic operators for determining the N* excitation spectrum is discussed. The operators are designed with one eye towards maximizing overlaps with the low-lying states of interest, and the other eye towards minimizing the number of sources needed in computing the required quark propagators.
LHP Collaboration +8 more
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