نتایج جستجو برای: normal fermi walker derivative

تعداد نتایج: 652026  

Journal: :General Relativity and Gravitation 2021

In this paper we show how the solar system, galactic, and cosmological scales, are accommodated in a single framework, namely, derivative expansion framework. We construct locally inertial static metric, based on Einstein equations method, which describes Schwarzschild black hole immersed dark matter energy. The leading order metric corresponds to first galaxy, second cosmology. It is shown cap...

Journal: :Fractal and fractional 2022

The Wheeler–DeWitt equation for a flat and compact Friedmann–Lemaître–Robertson–Walker cosmology at the pre-inflation epoch is studied in contexts of standard fractional quantum cosmology. Working within semiclassical regime applying Wentzel-Kramers-Brillouin (WKB) approximation, we show that some fascinating consequences are obtained our simple scenario completely different from their correspo...

2002
H. Müther A. Sedrakian

Isoscalar Cooper pairing in isospin asymmetric nuclear matter occurs between states populating two distinct Fermi-surfaces, each for neutrons and protons. The transition from a BCS-like to the normal (unpaired) state, as the isospin asymmetry is increased, is intervened by superconducting phases which spontaneously break translational and rotational symmetries. One possibility is the formation ...

2013
Y. Pavlyukh A. Rubio J. Berakdar

Y. Pavlyukh,1,* A. Rubio,2 and J. Berakdar1 1Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle, Germany 2Nano-Bio Spectroscopy Group and ETSF Scientific Development Centre, Departamento de Fı́sica de Materiales, Universidad del Paı́s Vasco, CFM CSIC-UPV/EHU-MPC and DIPC, Avenida Tolosa 72, E-20018 San Sebastián, Spain (Received 27 December 2012; revised manuscript recei...

2003
BOB RINK

The Fermi Pasta Ulam chain with periodic boundary conditions admits discrete and continuous symmetries. These symmetries allow one to formulate important restrictions on the Birkhoff normal form of this Hamiltonian system. We derive integrability properties and KAM statements. Hence the combination of symmetry and resonance in the periodic Fermi Pasta Ulam chain explains its quasiperiodic behav...

Journal: :Physical review letters 2006
C Lobo A Recati S Giorgini S Stringari

We study the Fermi gas at unitarity and at T=0 by assuming that, at high polarizations, it is a normal Fermi liquid composed of weakly interacting quasiparticles associated with the minority spin atoms. With a quantum Monte Carlo approach we calculate their effective mass and binding energy, as well as the full equation of state of the normal phase as a function of the concentration x=n downwar...

Journal: :Journal of biomechanics 2010
Milad Masjedi Garth R Johnson

A major requirement to design an implant is to develop our understanding of the applied internal forces during everyday activities. In the absence of any basic apparatus for measuring forces directly, it is essential to rely on modelling. The major aim of this study was therefore to understand the biomechanical function of subjects with the reversed anatomy Bayley-Walker prosthesis, using an in...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید