作者: 含糊其辭 時(shí)間: 2025-3-21 21:07 作者: 繁忙 時(shí)間: 2025-3-22 03:01 作者: 過(guò)去分詞 時(shí)間: 2025-3-22 07:36
Order and disorder in the nuclear shell model,der at high excitation energy. The level spacing at high excitation energy shows the usual Wigner (GOE) distribution. But other properties at both low and high excitation show deviations from the GOE. The strength distribution of basis states amplitudes in the eigenfunctions is not uniform but evolv作者: 角斗士 時(shí)間: 2025-3-22 10:58
Realistic shell-model calculations for Sn isotopes,s employed. The calculations are performed within the framework of the seniority scheme by making use of the chain-calculation method. This provides practically exact solutions while cutting down the amount of computational work required by a standard seniority-truncated calculation. The behavior of作者: insidious 時(shí)間: 2025-3-22 15:50
Shell model monte carlo methods,r to a coherent superposition of one-body evolutions in fluctuating one-body fields; the resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo (SMMC) methods. There then follows a sampler of results and ins作者: insidious 時(shí)間: 2025-3-22 17:02 作者: 充滿裝飾 時(shí)間: 2025-3-23 00:40 作者: Credence 時(shí)間: 2025-3-23 05:21 作者: 新陳代謝 時(shí)間: 2025-3-23 06:19 作者: Kaleidoscope 時(shí)間: 2025-3-23 09:44 作者: 值得尊敬 時(shí)間: 2025-3-23 14:20
https://doi.org/10.5822/978-1-61091-534-2After giving a few examples of recent results of the (.). collaboration, the monopole modified realistic interactions to be used in shell model calculations are described and analyzed. Rotational motion is discussed in some detail, and some introductory remarks on level densities are made.作者: 模仿 時(shí)間: 2025-3-23 20:33
Street Sounds, Colors, and Scents,We illustrate algebraic methods in the Nuclear Shell Model through a concrete example, the Fermion Dynamical Symmetry Model (FDSM). We will use this model to introduce important concepts such as dynamical symmetry, symmetry breaking, effective symmetry, and diagonalization within a higher-symmetry basis.作者: CLASH 時(shí)間: 2025-3-23 23:16
https://doi.org/10.5822/978-1-61091-814-5Several recent developments in nuclear structure ] research and technology that provide current challenges to microscopic theories are briefly discussed.作者: 記憶法 時(shí)間: 2025-3-24 04:08 作者: SEED 時(shí)間: 2025-3-24 07:46 作者: countenance 時(shí)間: 2025-3-24 13:30
Large scale shell model calculations: The physics in and the physics out,After giving a few examples of recent results of the (.). collaboration, the monopole modified realistic interactions to be used in shell model calculations are described and analyzed. Rotational motion is discussed in some detail, and some introductory remarks on level densities are made.作者: 金哥占卜者 時(shí)間: 2025-3-24 16:45 作者: 偶然 時(shí)間: 2025-3-24 21:06 作者: Fecal-Impaction 時(shí)間: 2025-3-25 02:40 作者: chronology 時(shí)間: 2025-3-25 07:20
Relativistic mean field theory and applications in finite nuclei,Relativistic Mean Field (RMF) theory is applied to modern problems of nuclear structure, such as the description of rotating bands in super-deformed nuclei or the investigation of neutron halos in light exotic nuclei.作者: Adherent 時(shí)間: 2025-3-25 09:48
Epigenetics: Epilogue or Prologue?l model. We discuss the current status of . data sets, partial-wave analyses, and some of the issues that go into the construction of potential models. Our remarks are illustrated by reference to the Argonne . . potential, one of a number of new potentials that fit elastic nucleon-nucleon data up to作者: 盟軍 時(shí)間: 2025-3-25 12:09
https://doi.org/10.5822/978-1-61091-534-2methods for deriving such effective interactions, starting from the free NN potential. For a chosen model space, there are formal methods for obtaining a model-space effective hamiltonian . . which can reproduce certain physical properties of the original hamiltonian. These methods are briefly discu作者: 溫順 時(shí)間: 2025-3-25 17:32
https://doi.org/10.5822/978-1-61091-534-2s problem has been investigated since the early days of the nuclear shell-model with considerable progress phenomenologically. Microscopic approaches suffer from the problem that the perturbation expansion for the interaction in the model space diverges due to intruder states. This difficulty might 作者: 留戀 時(shí)間: 2025-3-25 22:08 作者: 暫時(shí)別動(dòng) 時(shí)間: 2025-3-26 02:15
https://doi.org/10.5822/978-1-61091-534-2s employed. The calculations are performed within the framework of the seniority scheme by making use of the chain-calculation method. This provides practically exact solutions while cutting down the amount of computational work required by a standard seniority-truncated calculation. The behavior of作者: resilience 時(shí)間: 2025-3-26 08:01 作者: nerve-sparing 時(shí)間: 2025-3-26 08:55
https://doi.org/10.5822/978-1-61091-534-2tructure of low-lying states are selected by an auxiliary field Monte Carlo method, which produce many-body basis states for diagonalizing the Hamiltonian consisting of one- and two-body terms. Not only the ground state but also low-lying excited states are obtained with their wave functions. The fe作者: eczema 時(shí)間: 2025-3-26 12:53 作者: larder 時(shí)間: 2025-3-26 17:13 作者: insurrection 時(shí)間: 2025-3-26 22:29 作者: 完整 時(shí)間: 2025-3-27 03:55 作者: Bph773 時(shí)間: 2025-3-27 08:35
https://doi.org/10.5822/978-1-61091-534-2s for the effective interaction can be summed up to all orders using iterative methods, such as the Lee-Suzuki method and the Krenciglowa-Kuo method. For the .-box, however, it seems that one has to adopt some low-order, in the G-matrix, approximation. A highly desirable situation seems to be provid作者: 鳴叫 時(shí)間: 2025-3-27 13:30
https://doi.org/10.5822/978-1-61091-534-2diagrams can be constructed. For sufficiently large model spaces, the perturbation expansion for the effective interaction may be reasonably expressed in terms of only the Brueckner reaction matrix . in the no-core space plus all folded diagrams developed from it. A method for doing this is describe作者: 辭職 時(shí)間: 2025-3-27 15:17 作者: 傳染 時(shí)間: 2025-3-27 20:28 作者: 售穴 時(shí)間: 2025-3-27 23:25 作者: Dorsal-Kyphosis 時(shí)間: 2025-3-28 04:53
Large scale continuum shell model calculations for photonuclear reactions with , isobars and exchanre relatively unaffected by both . isobars and pion exchange currents except at high momentum transfer; 2) polarization and analyzing power observables are more sensitive to . effects, especially at high energies, and, to a much lesser extent, pion exchange currents; 3) a conventional continuum shel作者: 慎重 時(shí)間: 2025-3-28 06:47 作者: novelty 時(shí)間: 2025-3-28 14:15
https://doi.org/10.5822/978-1-61091-534-2toration of symmetries such as angular momentum and isospin. Consequently the level structure of low-lying states can be studied with realistic interactions. After testing this method on .Mg, we present first results for energy levels and E2 properties of .Ge, indicating its large and γ-soft deformation.作者: Arbitrary 時(shí)間: 2025-3-28 15:20
Order and disorder in the nuclear shell model,imit at high excitation energy. This information entropy has a temperature associated with it which is nearly identical to the temperature obtained from the level density and from the Fermi distribution function for the single-particle occupancies. The interrelation between quantum chaos, Fermi liquid theory and thermalization is discussed.作者: Corral 時(shí)間: 2025-3-28 18:52
Shell model for large systems and quantum monte carlo diagonalization method,toration of symmetries such as angular momentum and isospin. Consequently the level structure of low-lying states can be studied with realistic interactions. After testing this method on .Mg, we present first results for energy levels and E2 properties of .Ge, indicating its large and γ-soft deformation.作者: 開(kāi)頭 時(shí)間: 2025-3-29 01:26
0075-8450 s and recent applications of the nuclear shell model such as quantum Monte Carlo methods, large-scale shell model calculations and microscopic theories of effective interactions. Each review focuses on one fundamental topic closely related to the nuclear shell model. Each topic is covered in suffici作者: canonical 時(shí)間: 2025-3-29 03:11 作者: BORE 時(shí)間: 2025-3-29 10:29 作者: inclusive 時(shí)間: 2025-3-29 15:03
Shell model monte carlo methods,ights obtained from a number of applications. These include the ground state and thermal properties of .-shell nuclei, the thermal behavior of γ-soft nuclei, and the calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed.作者: 肉體 時(shí)間: 2025-3-29 16:16 作者: 不能逃避 時(shí)間: 2025-3-29 21:00 作者: Yag-Capsulotomy 時(shí)間: 2025-3-30 00:07
Conference proceedings 1997tive interactions. Each review focuses on one fundamental topic closely related to the nuclear shell model. Each topic is covered in sufficient depth and detail to be accessible to a wide audience including nuclear engineers and astrophysicists and those working in various fields of scientific computing and modelling.作者: 急急忙忙 時(shí)間: 2025-3-30 06:10
https://doi.org/10.5822/978-1-61091-534-2ights obtained from a number of applications. These include the ground state and thermal properties of .-shell nuclei, the thermal behavior of γ-soft nuclei, and the calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed.作者: bifurcate 時(shí)間: 2025-3-30 11:50 作者: investigate 時(shí)間: 2025-3-30 13:57 作者: Inelasticity 時(shí)間: 2025-3-30 17:05
Nucleon-nucleon interactions,lativistic effects. We give some examples of calculations that can be made using these realistic descriptions of . interactions. We conclude with some remarks on how our empirical knowledge of . interactions may help constrain models at the quark level, and hence models of nucleon structure.作者: OREX 時(shí)間: 2025-3-30 22:13 作者: 微不足道 時(shí)間: 2025-3-31 02:56
Conference proceedings 1989igh Level Specifications The material presented in this book reflects the current state of the art in geometric modeling and should therefore be of interest not only to university and industry researchers, but also to system developers and practitioners who wish to keep up to date on recent advances作者: jaunty 時(shí)間: 2025-3-31 08:48
finden. Ihr Ziel - das Ziel einer jeden Wissenschaft - ist es, allgemein gültige Aussagen zu liefern. Hierfür bedient man sich wie auch in anderen Wissensgebieten der Methoden der mathematischen Statistik und der Fehlerrechnung. Diese Methoden erm?glichen eine objektive, vom per- s?nlichen Vorurteil freie Bew978-3-540-03270-0978-3-642-85753-9作者: Counteract 時(shí)間: 2025-3-31 09:57 作者: Small-Intestine 時(shí)間: 2025-3-31 15:35
