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Using periodic-orbit theory beyond the diagonal approximation we investigate the form factor, $K(\tau)$, of a generic quantum graph with mixing classical dynamics and time-reversal symmetry. We calculate the contribution from pairs of…

混沌动力学 · 物理学 2007-05-23 Gregory Berkolaiko , Holger Schanz , Robert S. Whitney

This paper deals with the derivation of a sharp estimate on the difference of traces of the one-parameter Schr\"odinger semigroup associated to the quantum isotropic harmonic oscillator. Denoting by $H_{\infty,\kappa}$ the self-adjoint…

数学物理 · 物理学 2018-11-30 Mathieu Beau , Baptiste Savoie

A gyrokinetic theory is developed under a set of orderings applicable to the edge region of tokamaks and other magnetic confinement devices, as well as to internal transport barriers. The result is a practical set equations that is valid…

等离子体物理 · 物理学 2015-05-30 Andris M. Dimits

We calculate the two-loop mixed QCD$\otimes$EW corrections for the charged Higgs boson pair production within the framework of four types of Two Higgs Doublet Models (THDMs) with the $Z_2$ symmetry. We analyze in detail the dependences of…

高能物理 - 唯象学 · 物理学 2023-12-29 Zhi-Xing Zhang , Ren-You Zhang , Zhe Li , Shu-Xiang Li , Wen-Jie He , Liang Han , Qing-hai Wang

In this paper, I study final state QCD radiative corrections to off-shell single top production via decaying $W$ at hadron collider energies. The tree level Breit-Wigner distribution of the produced top invariant mass is distorted by final…

高能物理 - 唯象学 · 物理学 2009-10-28 R. Pittau

In the event that the Higgs mass is large or that the electroweak interactions are strongly interacting at high energy, top quark couplings to longitudinal components of the weak gauge bosons could offer important clues to the underlying…

高能物理 - 唯象学 · 物理学 2016-09-06 Stephen Godfrey , Shou-hua Zhu

The relations among the occupation number of the lowest natural orbital (ONLNO), momentum distributions (MD) and off-diagonal long-range element (ODLRE) of the reduced single-particle density matrix (RSPDM) are studied while Tonks-Girardeau…

量子气体 · 物理学 2012-08-08 Wang Zhao-Liang , Wang An-Min , Li Xue-Chao

We construct a complete list of O(q^4) terms directly within Heavy Baryon Chiral Perturbation Theory (HBChPT) in the absence of external fields and assuming isospin symmetry. In addition to a phase rule recently developed (NPA646, 343,…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Misra

We study decuplet baryons from meson-baryon interactions, in particular, $\Delta$ and $\Omega$ baryons from P-wave $I=3/2$ $N\pi$ and $I=0$ $\Xi\bar{K}$ interactions, respectively. The interaction potentials are calculated in the HAL QCD…

高能物理 - 格点 · 物理学 2021-12-01 Kotaro Murakami , Yutaro Akahoshi , Sinya Aoki , Kenji Sasaki

The reaction pi N -> pi pi N is studied at tree level up to next-to-leading order in the framework of manifestly covariant baryon chiral perturbation theory with explicit Delta(1232) degrees of freedom. Using total cross section data to…

核理论 · 物理学 2014-07-09 D. Siemens , V. Bernard , E. Epelbaum , H. Krebs , Ulf-G. Meißner

Lorentzian topology change may be resolved into an ordered sequence of localized, orientation-sensitive operations rather than treated solely as a global transition between spatial manifolds. We develop a generator-history framework in…

广义相对论与量子宇宙学 · 物理学 2026-03-03 Keith Andrew , Eric V. Steinfelds , Kristopher A. Andrew

The renormalized trajectory (RT) is determined from two different Monte Carlo renormalization group techniques with $\delta$-function block spin transformation in the multi-dimensional coupling parameter space of the two-dimensional…

高能物理 - 格点 · 物理学 2009-10-28 Wolfgang Bock , Julius Kuti

Third order chiral perturbation theory accounts for the $\pi-N$ scattering phase shift data out to energies slightly below the position of the $\Delta$ resonance. The low energy constants are not accurately determined. Explicit inclusion of…

核理论 · 物理学 2017-08-23 P. J. Ellis

In this paper, the off-diagonal geometric phase of thermal state in hydrogen atom under the effects of external magnetic field is considered. Increasing temperature tends to suppress the off-diagonal geometric phase, including 1-order and…

量子物理 · 物理学 2009-07-13 Guo-Qiang Zhu

Comparing structured data from possibly different metric-measure spaces is a fundamental task in machine learning, with applications in, e.g., graph classification. The Gromov-Wasserstein (GW) discrepancy formulates a coupling between the…

机器学习 · 计算机科学 2022-07-12 Hongwei Jin , Zishun Yu , Xinhua Zhang

Standard approximations for the exchange-correlation (XC) functional in Kohn-Sham density functional theory (KS-DFT) typically lead to unacceptably large errors when applied to strongly-correlated electronic systems. Partition-DFT (PDFT) is…

化学物理 · 物理学 2023-09-12 Yi Shi , Yuming Shi , Adam Wasserman

We study the masses of the doubly bottom baryons and the charmed bottom baryons up to $\mathcal{O}\left(p^{3}\right)$ in heavy baryon chiral perturbation theory. For the low-energy constants, $g_{A}$ was determined in the quark model, and…

高能物理 - 唯象学 · 物理学 2022-08-24 Hao-Ze Tong , Hao-Song Li

We construct the most general low-energy effective lagrangian including local parity violating terms parametrized by an axial chemical potential or chiral imbalance $\mu_5$, up to ${\cal O}(p^4)$ order in the chiral expansion for two light…

高能物理 - 唯象学 · 物理学 2020-07-15 Domènec Espriu , Angel Gómez Nicola , Andrea Vioque-Rodríguez

We calculate the effective potentials of the octet baryon and heavy meson systems using the chiral effective field theory up to the next-to-leading order. We consider the contact terms, one-pseudoscalar-meson and two-pseudoscalar-meson…

高能物理 - 唯象学 · 物理学 2024-12-12 Bo-Lin Huang , Bo Wang , Shi-Lin Zhu

The cross sections for low-energy neutrino-deuteron reactions are calculated within heavy-baryon chiral perturbation theory employing cut-off regularization scheme. The transition operators are derived up to next-to-next-to-next-to-leading…

核理论 · 物理学 2009-11-07 S. Ando , Y. H. Song , T. -S. Park , H. W. Fearing , K. Kubodera