中文
相关论文

相关论文: Sudakov evolution without unitarity

200 篇论文

We present a new particle-merging algorithm for the particle-in-cell method. Based on the concept of the Voronoi diagram, the algorithm partitions the phase space into smaller subsets, which consist of only particles that are in close…

计算物理 · 物理学 2016-04-20 Phuc T. Luu , T. Tückmantel , A. Pukhov

Systematic classification of Z2xZ2 orbifold compactifications of the heterotic-string was pursued by using its free fermion formulation. The method entails random generation of string vacua and analysis of their entire spectra, and led to…

高能物理 - 理论 · 物理学 2020-12-30 Alon E. Faraggi , Glyn Harries , Benjamin Percival , John Rizos

Suppose ${\bf x}$ is any exactly $k$-sparse vector in $\mathbb{C}^{n}$. We present a class of phase measurement matrix $A$ in $\mathbb{C}^{m\times n}$, and a corresponding algorithm, called SUPER, that can resolve ${\bf x}$ up to a global…

信息论 · 计算机科学 2014-01-28 Sheng Cai , Mayank Bakshi , Sidharth Jaggi , Minghua Chen

Auxiliary field quantum Monte Carlo methods for Hubbard models are generally based on a Hubbard-Stratonovitch transformation where the field couples to the z-component of the spin. This transformation breaks SU(2) spin invariance. The…

强关联电子 · 物理学 2007-05-23 F. F. Assaad

Algorithms are developed for calculating dealiased linear convolution sums without the expense of conventional zero-padding or phase-shift techniques. For one-dimensional in-place convolutions, the memory requirements are identical with the…

计算工程、金融与科学 · 计算机科学 2011-02-14 John C. Bowman , Malcolm Roberts

Recently a new algorithm for sampling posteriors of unnormalised probability densities, called ABC Shadow, was proposed in [8]. This talk introduces a global optimisation procedure based on the ABC Shadow simulation dynamics. First the…

统计计算 · 统计学 2018-03-20 R. S. Stoica , M. Deaconu , L. Hurtado

We extend the littlest modular seesaw to a Grand Unified scenario based on $SU(5)$ endowed with three modular $S_4$ symmetries. We leverage symmetry protected zeroes in the leptonic and down quark sectors to suppress deviations to the…

高能物理 - 唯象学 · 物理学 2023-09-29 Ivo de Medeiros Varzielas , Steve F. King , Miguel Levy

Machine learning allows unfolding high-dimensional spaces without binning at the LHC. The new SPINUP method extracts the unfolded distribution based on a neural network encoding the forward mapping, making it independent of the prior from…

高能物理 - 唯象学 · 物理学 2025-07-22 Anja Butter , Theo Heimel , Nathan Huetsch , Michael Kagan , Tilman Plehn

We consider confining Hidden Valley/Dark Sector theories containing many dark quark flavors. These theories are in the ``conformal window'': they reach an infrared fixed point when their quarks are massless, and have unfamiliar confinement…

高能物理 - 唯象学 · 物理学 2025-08-01 Suchita Kulkarni , Joshua Lockyer , Matthew J. Strassler

Thin-film solar cells are predominately designed similar to a stacked structure. Optimizing the layer thicknesses in this stack structure is crucial to extract the best efficiency of the solar cell. The commonplace method used in…

神经与进化计算 · 计算机科学 2020-04-08 Premkumar Vincent , Gwenaelle Cunha Sergio , Jaewon Jang , In Man Kang , Jaehoon Park , Hyeok Kim , Minho Lee , Jin-Hyuk Bae

The main idea of nested sampling is to substitute the high-dimensional likelihood integral over the parameter space $\Omega$ by an integral over the unit line $[0,1]$ by employing a push-forward with respect to a suitable transformation.…

统计理论 · 数学 2021-04-29 Doris Schittenhelm , Philipp Wacker

We consider a four-point process, associated with a wide-angle elastic scattering of two off-mass-shell spin-1/2 matter particles, in a non-abelian gauge theory. On the basis of a worldline approach, which reverts the functional to a…

高能物理 - 唯象学 · 物理学 2009-10-31 A. I. Karanikas , C. N. Ktorides , N. G. Stefanis , S. M. H. Wong

We propose an extension of umbrella sampling in which the pertinent range of states is subdivided in windows that are sampled consecutively and linked together. Extrapolating results from one window we estimate a weight function for the…

统计力学 · 物理学 2007-05-23 P. Virnau , M. Mueller

This study presents a novel algorithm based on machine learning (ML) for the precise segmentation and measurement of detonation cells from soot foil images, addressing the limitations of manual and primitive edge detection methods prevalent…

机器学习 · 计算机科学 2024-09-12 Vansh Sharma , Michael Ullman , Venkat Raman

An efficient scheme for one-dimensional extensive air shower simulation and its implementation in the program CONEX are presented. Explicit Monte Carlo simulation of the high-energy part of hadronic and electromagnetic cascades in the…

天体物理学 · 物理学 2009-07-22 T. Bergmann , R. Engel , D. Heck , N. N. Kalmykov , S. Ostapchenko , T. Pierog , T. Thouw , K. Werner

In the present work we explore the application of a few root-finding methods to a series of prototypical examples. The methods we consider include: (a) the so-called continuous-time Nesterov (CTN) flow method; (b) a variant thereof referred…

斑图形成与孤子 · 物理学 2021-02-03 Priya Subramanian , Ioannis G. Kevrekidis , Panayotis G. Kevrekidis

This paper adds to the discussion about theoretical aspects of particle swarm stability by proposing to employ stochastic Lyapunov functions and to determine the convergence set by quantifier elimination. We present a computational…

神经与进化计算 · 计算机科学 2020-02-06 Maximilian Gerwien , Rick Voßwinkel , Hendrik Richter

We consider a general class of branching processes in discrete time, where particles have types belonging to a Polish space and reproduce independently according to their type. If the process is critical and the mean distribution of types…

概率论 · 数学 2024-12-23 Félix Foutel-Rodier

This study develops a scalable co-optimization strategy for the joint bidding of cascaded hydropower, wind, and solar energy units, treated as a unified entity in the day-ahead market. Although hydropower flexibility can manage the…

We propose a novel and unified framework for change-point estimation in multivariate time series. The proposed method is fully nonparametric, enjoys effortless tuning and is robust to temporal dependence. One salient and distinct feature of…

统计方法学 · 统计学 2022-09-12 Zifeng Zhao , Feiyu Jiang , Xiaofeng Shao