搜索结果: 1-15 共查到“物理学 pairing”相关记录22条 . 查询时间(0.078 秒)
Pseudogap phenomenon in an ultracold Fermi gas with a p-wave pairing interaction
Pseudogap phenomenon in an ultracold Fermi gas with a p-wave pairing interaction
2012/2/27
We investigate single-particle properties of a one-component Fermi gas with a tunable p-wave interaction. Including pairing fluctuations associated with this anisotropic interaction within a $T$-matri...
Explaining cuprates' anti-nodal kink features on the basis of a model of electron pairing
superconductivity physics electron pairing high-temperature superconductivity
2011/12/15
We provide an explanation of anti-nodal pseudogap features of cuprates on the basis of a proposed electron pairing model, and recognize the bosonic modes responsible for electron pairings leading to t...
To address the issue of electron correlation driven superconductivity in graphene, we perform a systematic quantum Monte Carlo study of the pairing correlation in thet-U-VHubbard model on a honeycomb ...
The Heine-Stieltjes correspondence and the polynomial approach to the standard pairing problem
Heine-Stieltjes correspondence polynomial approach to the standard
2011/7/20
A new approach for solving the Bethe ansatz (Gaudin-Richardson) equations of the standard pairing problem is established based on the Heine-Stieltjes correspondence.
Anomalous pairing vibration in neutron-rich Sn isotopes beyond the N=82 magic number
neutron-rich Sn Anomalous pairing vibration
2011/7/20
Two-neutron transfer associated with the pair correlation in superfluid neutron-rich nuclei is studied with focus on low-lying $0^+$ states in Sn isotopes beyond the N=82 magic number.
Thomas-Fermi approximation to pairing in finite Fermi systems. The weak coupling regime
Thomas-Fermi approximation to pairing Fermi systems weak coupling regime
2011/7/20
We present a new semiclassical theory for describing pairing in finite Fermi systems. It is based on taking the $\hbar \to 0$, i.e. Thomas-Fermi, limit of the gap equation written in the basis of the ...
The Heine-Stieltjes correspondence and the polynomial approach to the standard pairing problem
The Heine-Stieltjes correspondence the polynomial the standard pairing problem Nuclear Theory
2011/7/28
Abstract: A new approach for solving the Bethe ansatz (Gaudin-Richardson) equations of the standard pairing problem is established based on the Heine-Stieltjes correspondence. For $k$ pairs of valence...
Metallic nanograins: spatially nonuniform pairing induced by quantum confinement
Metallic nanograins: spatially nonuniform quantum confinement
2010/11/24
It is well-known that the formation of discrete electron levels strongly influences the pairing in metallic nanograins. Here we focus on another effect of quantum confinement in superconducting grains...
Magnetic field dependence of pairing interaction in ferromagnetic superconductors with triplet pairing
Magnetic field dependence of pairing interaction ferromagnetic superconductors triplet pairing
2010/11/23
It is developed a microscopic description of superconductivity in ferromagnetic materials with
triplet pairing triggered by the exchange of magnetic fluctuations. Instead widely used paramagnon model...
Population imbalance and pairing in the BCS-BEC crossover of three-component ultracold fermions
Population imbalance three-component ultracold fermions
2010/11/17
We investigate the phase diagram and the BCS-BEC crossover of a homogeneous three-component
ultracold Fermi gas with a U(3) invariant attractive interaction. We show that the system at
sufficiently ...
Coexistence of pairing gaps in three-component Fermi gases
Coexistence of pairing gaps three-component Fermi gases
2010/11/25
We study a three-component superfluid Fermi gas in a spherically symmetric harmonic trap using the Bogoliubov-deGennes method. We predict a coexistence phase in which two pairing field order parameter...
Pairing Fluctuations Determine Low Energy Electronic Spectra in Cuprate Superconductors
Low Energy Electronic Spectra Cuprate Superconductors
2010/11/24
High-temperature superconductivity in hole-doped cuprates, accompanied by a ‘pseudogap phase’ as well as other strange phenomena, con-tinues to be an outstanding question in condensed matter physics f...
The Tamm-Dancoff Approximation as the boson limit of the Richardson-Gaudin equations for pairing
Tamm-Dancoff Approximation Richardson-Gaudin equations
2011/1/6
A connection is made between the exact eigen states of the BCS Hamiltonian and the predictions made by the Tamm-Dancoff Approximation. This connection is made by means of a parametrised algebra, which...
Unified BCS-like model of pairing and alpha-correlations
Unified BCS-like model of pairing alpha-correlations
2011/1/7
We construct a BCS-like model that combines nucleonic pairing cor-relations and possible quartic correlations of alpha-type in a single vari-ational wave function and derive corresponding gap equation...
Application of the extended pairing model to heavy isotopes
Application extended pairing model heavy isotopes
2011/1/7
Relative binding energies (RBEs) within three isotopic chains (100−130Sn, 152−181Yb, and
181−202Pb) have been studied using the exactly solvable extended pairing model (EPM) [1]. Th...