Zobrazeno 1 - 10
of 17 470
pro vyhledávání: '"Feng Xu"'
Autor:
Lin, Tian, Bruno, Mattia, Feng, Xu, Jin, Lu-Chang, Lehner, Christoph, Liu, Chuan, Luo, Qi-Yuan
We develop a method to compute the pion transition form factors directly at arbitrary photon momenta and use it to determine the $\pi^0$-pole contribution to the hadronic light-by-light scattering in the anomalous magnetic moment of the muon. The cal
Externí odkaz:
http://arxiv.org/abs/2411.06349
The subtraction function plays a pivotal role in calculations involving the forward Compton amplitude, which is crucial for predicting the Lamb shift in muonic atom, as well as the proton-neutron mass difference. In this work, we present a lattice QC
Externí odkaz:
http://arxiv.org/abs/2411.03141
Obtaining exact solutions to combinatorial optimization problems using classical computing is computationally expensive. The current tenet in the field is that quantum computers can address these problems more efficiently. While promising algorithms
Externí odkaz:
http://arxiv.org/abs/2408.09083
The widespread use of the internet has led to an overwhelming amount of data, which has resulted in the problem of information overload. Recommender systems have emerged as a solution to this problem by providing personalized recommendations to users
Externí odkaz:
http://arxiv.org/abs/2408.07630
Autor:
Tuo, Xin-Yu, Feng, Xu
This study investigates finite-volume effects in physical processes that involve the combination of long-range hadronic matrix elements with electroweak loop integrals. We adopt the approach of implementing the electroweak part as the infinite-volume
Externí odkaz:
http://arxiv.org/abs/2407.16930
Publikováno v:
Phys. Rev. B 110, 144305 (2024)
The skin effect, characterized by the tendency of particles to accumulate at the boundaries, has been extensively studied in non-Hermitian systems. In this work, we propose an intuitive Lindbladian composed of two chains with reversed skin localizati
Externí odkaz:
http://arxiv.org/abs/2407.08398
This article presents svds-C, an open-source and high-performance C program for accurately and robustly computing truncated SVD, e.g. computing several largest singular values and corresponding singular vectors. We have re-implemented the algorithm o
Externí odkaz:
http://arxiv.org/abs/2405.18966
Aiming to provide a faster and convenient truncated SVD algorithm for large sparse matrices from real applications (i.e. for computing a few of largest singular values and the corresponding singular vectors), a dynamically shifted power iteration tec
Externí odkaz:
http://arxiv.org/abs/2404.09276
We describe a first-principles method to apply lattice QCD to compute the order $\alpha_{\mathrm{EM}}$ corrections to $K\to\pi\ell\nu_\ell$ decay. This method formulates the calculation in infinite volume with the conventional infinite-volume, contin
Externí odkaz:
http://arxiv.org/abs/2402.08915
We propose a lattice-QCD-suitable framework for computing the two-photon long-distance contribution to the complex $K_{\rm L}\rightarrow\mu^+\mu^-$ decay amplitude, where QED is treated perturbatively in the continuum and infinite-volume. We provide
Externí odkaz:
http://arxiv.org/abs/2312.01224