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In quantum estimation theory, the Holevo bound is known as a lower bound of weighed traces of covariances of unbiased estimators. The Holevo bound is defined by a solution of a minimization problem, and in general, explicit solution is not…

Quantum Physics · Physics 2021-06-14 Koichi Yamagata

We consider the high energy behaviour of the amplitudes for pair production of charged leptons, quarks, Higgs bosons, sleptons, squarks and charginos at lepton colliders. We give the general expressions of the leading quadratic and…

High Energy Physics - Phenomenology · Physics 2014-11-17 Matteo Beccaria , Michael Melles , Fernand M. Renard , Salvatore Trimarchi , Claudio Verzegnassi

We derive the large time asymptotics of initially regular and localized solutions of the Teukolsky equation on the exterior of a subextremal Kerr black hole for any half integer spin. More precisely, we obtain the leading order term…

Analysis of PDEs · Mathematics 2023-02-15 Pascal Millet

We recalculate the proton Dirac form factor based on the perturbative QCD factorization theorem which includes Sudakov suppression. The evolution scale of the proton wave functions and the infrared cutoffs for the Sudakov resummation are…

High Energy Physics - Phenomenology · Physics 2011-09-13 Bijoy Kundu , Hsiang-nan Li , Jim Samuelsson , Pankaj Jain

We study the potential of deep learning to resolve the combinatorial problem in SUSY-like events with two invisible particles at the LHC. As a concrete example, we focus on dileptonic $t \bar t$ events, where the combinatorial problem…

High Energy Physics - Phenomenology · Physics 2022-06-28 Haider Alhazmi , Zhongtian Dong , Li Huang , Jeong Han Kim , Kyoungchul Kong , David Shih

We show that threshold resummation of the end-point logarithms in inclusive $b$-hadron decays leads to a Sudakov factor, which introduces $1/m_b$ power corrections through infrared renormalons. These power corrections are strong enough to…

High Energy Physics - Phenomenology · Physics 2007-05-23 Huei-Shih Liao , Hsiang-nan Li

The Hall-Vinen-Bekharevich-Khalatnikov (HVBK) equations are a macroscopic model of superfluidity at non-zero temperatures. For smooth, compactly supported data, we prove the global well-posedness of strong solutions to these equations in…

Analysis of PDEs · Mathematics 2021-01-22 Pranava Chaitanya Jayanti , Konstantina Trivisa

This work discusses the model reduction problem for large-scale multi-symplectic PDEs with cubic invariants. For this, we present a linearly implicit global energy-preserving method to construct reduced-order models. This allows to…

Numerical Analysis · Mathematics 2023-08-08 Süleyman Yildiz , Pawan Goyal , Peter Benner

We calculate higher-order corrections to the quenching factor of heavy-quark jets due to hard, in-medium splittings in the framework of the BDMPS-Z formalism. These corrections turn out to be sensitive to a single mass-scale $m_\ast = (\hat…

High Energy Physics - Phenomenology · Physics 2022-10-12 Boris Blok , Konrad Tywoniuk

Our main goal is to investigate supercritical Hardy-Sobolev type inequalities with a logarithmic term and their corresponding variational problem. We prove the existence of extremal functions for the associated variational problem, despite…

Analysis of PDEs · Mathematics 2025-05-14 José Francisco de Oliveira , Jeferson Silva

The goal of this paper is to study global well-posedness, cone of dependence and loss of regularity of the solutions to a class of strictly hyperbolic equations with coefficients displaying "mild" blow-up of sublogarithmic order - $|\ln…

Analysis of PDEs · Mathematics 2022-04-20 Rahul Raju Pattar , N. Uday Kiran

To fully exploit the capabilities of next-generation gravitational wave detectors, we need to significantly improve the accuracy of our models of gravitational-wave-emitting systems. This paper focuses on one way of doing so: by taking…

General Relativity and Quantum Cosmology · Physics 2023-06-07 Andrew Spiers , Adam Pound , Jordan Moxon

We study the strong corrections to the Higgs coupling to two photons. This coupling is the dominant mechanism for Higgs production in photon-photon collisions. In addition, the two photon decay mode of the Higgs is an important and…

High Energy Physics - Phenomenology · Physics 2009-11-07 R. Akhoury , H. Wang , O. Yakovlev

Despite the significant success of large language models (LLMs), their extensive memory requirements pose challenges for deploying them in long-context token generation. The substantial memory footprint of LLM decoders arises from the…

Machine Learning · Computer Science 2024-02-12 Amir Zandieh , Insu Han , Vahab Mirrokni , Amin Karbasi

The computation of perturbative corrections to processes involving heavy quarks is crucial for the precision program of the LHC and future colliders. In this article, we describe a powerful approach to calculate higher-orders in QCD…

High Energy Physics - Phenomenology · Physics 2016-11-17 German F. R. Sborlini

Differential spectra in observables that resolve additional soft or collinear QCD emissions exhibit Sudakov double logarithms in the form of logarithmic plus distributions. Important examples are the total transverse momentum $q_T$ in…

High Energy Physics - Phenomenology · Physics 2017-02-24 Markus A. Ebert , Frank J. Tackmann

We construct a factorization theorem that allows to systematically include QCD corrections to the contribution of the electromagnetic dipole operator in the effective weak Hamiltonian to the $\bar B_s \to \mu^+\mu^-$ decay amplitude. We…

High Energy Physics - Phenomenology · Physics 2023-02-08 Thorsten Feldmann , Nico Gubernari , Tobias Huber , Nicolas Seitz

A new class of high-order accuracy numerical methods for the BGK model of the Boltzmann equation is presented. The schemes are based on a semi-lagrangian formulation of the BGK equation; time integration is dealt with DIRK (Diagonally…

Numerical Analysis · Mathematics 2014-12-01 M. Groppi , G. Russo , G. Stracquadanio

In this paper, we introduce the concept of sparse bilinear logistic regression for decision problems involving explanatory variables that are two-dimensional matrices. Such problems are common in computer vision, brain-computer interfaces,…

Optimization and Control · Mathematics 2014-04-17 Jianing V. Shi , Yangyang Xu , Richard G. Baraniuk

A numerical method is developed leading to algebraic systems based on generalized Lyapunov-Sylvester operators to approximate the solution of two-dimensional Kuramoto-Sivashinsky equation. It consists of an order reduction method and a…

Numerical Analysis · Mathematics 2015-11-10 Abdelhamid Bezia , Anouar Ben Mabrouk