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Considered a pair of random lifetimes whose dependence is described by a Time Transformed Exponential model, we provide analytical expressions for the distribution of their sum. These expressions are obtained by using a representation of…

统计理论 · 数学 2024-12-13 Jorge Navarro , Franco Pellerey , Julio Mulero

An adaptive state observer is proposed for a class of overparametrized uncertain linear time-invariant systems without restrictive requirement of their representation in the observer canonical form. It evolves the method of generalized…

系统与控制 · 电气工程与系统科学 2023-01-19 Anton Glushchenko , Konstantin Lastochkin

We describe electromagnetic and favored \alpha-transitions to rotational bands in odd-mass nuclei built upon a single particle state with angular momentum projection $\Omega=\frac{1}{2}$ in the region $88 \le Z \le 98$. We use the particle…

核理论 · 物理学 2016-03-23 A. Dumitrescu , D. S. Delion

We have extended recently proposed model of parton distribution i nucleons to the case of nucleons in nuclei.

高能物理 - 唯象学 · 物理学 2009-10-31 J. Rozynek , G. Wilk

We develop a combinatorial model of the associated Hermite polynomials and their moments, and prove their orthogonality with a sign-reversing involution. We find combinatorial interpretations of the moments as complete matchings, connected…

组合数学 · 数学 2009-03-05 Dan Drake

Quantum lattice models describe a wide array of physical systems, and are a canonical way to numerically solve the Schrodinger equation. Here we prove the potential inversion theorem, which says that wavefunction probability in these models…

量子物理 · 物理学 2023-08-02 Alec Shelley , Henry Hunt

Large-amplitude prominence oscillations offer diagnostic information relevant to understanding the magnetic and plasma structure of solar prominences. Accurate prominence seismology requires the use of reliable models. The so-called…

太阳与恒星天体物理 · 物理学 2026-04-02 Iñigo Arregui

Important $E2$ contributions to the $(e,e^{\prime})$ cross sections of low-lying orbital $M1$ excitations are found in heavy deformed nuclei, arising from the small energy separation between the two excitations with $I^{\pi}K = 2^+1$ and…

核理论 · 物理学 2008-11-26 R. Nojarov , Amand Faessler , M. Dingfelder

The present work is a natural continuation of the previous paper arXiv:0911.5597. In this work, within the scope of the Generalized Uncertainty Principle, a model of the high energy deformation for a particular case of Einstein's equations…

高能物理 - 理论 · 物理学 2010-06-25 A. E. Shalyt-Margolin

We derive new exceptional point (EP) conditions of the coupled microring resonators using coupled mode theory in space, a more accurate approach than the commonly used coupled mode theory in time. Transmission spectra around EPs obtained…

光学 · 物理学 2024-10-24 Kunpeng Zhu , Xiaoyan Zhou , Yinxin Zhang , Zhanhua Huang , Lin Zhang

A novel method of exponentially stable adaptive control to compensate for matched parametric uncertainty under a mild condition of semi-persistent excitation (s-PE) of a regressor with piecewise-constant rank and nullspace is proposed. It…

系统与控制 · 电气工程与系统科学 2022-10-24 Anton Glushchenko , Konstantin Lastochkin

A theory of exponential modified gravity which explains both early-time inflation and late-time acceleration, in a unified way, is proposed. The theory successfully passes the local tests and fulfills the cosmological bounds and,…

高能物理 - 理论 · 物理学 2011-04-22 E. Elizalde , S. Nojiri , S. D. Odintsov , L. Sebastiani , S. Zerbini

It has recently been shown that a simple empirical formula, in terms of the mass number and the valence nucleon numbers, is able to describe the main trends of the lowest excitation energies of the natural parity even multipole states up to…

核理论 · 物理学 2015-05-13 Guanghao Jin , Dongwoo Cha , Jin-Hee Yoon

Pairing fluctuations are self-consistently incorporated on the same footing as the quadrupole deformations in present state of the art calculations including particle number and angular momentum conservation as well as configuration mixing.…

核理论 · 物理学 2015-06-18 Nuria López Vaquero , J. Luis Egido , Tomás R. Rodríguez

Recently, the following novel method for proving the existence of solutions for certain linear time-invariant PDEs was introduced: The operator associated to a given PDE is represented by a (larger) operator with an internal loop. If the…

最优化与控制 · 数学 2015-11-09 Mikael Kurula , Hans Zwart

We propose a novel formulation of the Interacting Boson Model (IBM) for rotational nuclei with axially-symmetric strong deformation. The intrinsic structure represented by the potential energy surface (PES) of a given multi-nucleon system…

核理论 · 物理学 2011-07-19 Kosuke Nomura , Takaharu Otsuka , Noritaka Shimizu , Lu Guo

The electromagnetically induced transparency (EIT) in an $N$ configuration is studied under both resonant and off-resonant conditions. In a certain off-resonant condition the dark state of the four level system, which is almost the same as…

量子物理 · 物理学 2007-11-06 Bin Luo , Xiao Li , Hong Guo

We revisit the scaling properties of a model for non-equilibrium wetting [Phys. Rev. Lett. 79, 2710 (1997)], correcting previous estimates of the critical exponents and providing a complete scaling scheme. Moreover, we investigate a special…

统计力学 · 物理学 2008-01-09 A. C. Barato , H. Hinrichsen , M. J. de Oliveira

The influence of triaxial deformation $\gamma$ on the purely collective form of wobbling motion in even-even nuclei are discussed based on the triaxial rotor model. It is found that the harmonic approximation is realized well when…

核理论 · 物理学 2021-05-26 Bin Qi , Hui Zhang , Shou Yu Wang , Qi Bo Chen

Nuclear attenuation of the two-hadron system is considered in the string model. The two-scale model and its improved version with two different choices of constituent formation time and sets of parameters obtained earlier for the single…

高能物理 - 唯象学 · 物理学 2008-11-26 N. Akopov , L. Grigoryan , Z. Akopov