In particular, the free energy essentially manifests the spin-charge separated conformal field theories for high-symmetry systems with arbitrary repulsive interaction strength. We also find that the sound velocity of the Fermi gases in the largewlimit coincides with that for the spinless Bose gas, ...
2.9.4 Filling up with electrons; Fermi energy The orbitals are defined as the energy levels of electrons in a solid. This is independent of the number of electrons. To construct an orbital diagram the electrons must be filled into the orbitals. According to the rules two electrons (spin up...
It is shown that mutual scattering of many-particle excitations of various types leads to the emergence of an additional Fermi-liquid singularity in the vicinity of the Fermi level. The conditions under which the Fermi-liquid state with a new energy scale (which is much smaller than the Kondo...
有趣的文章一篇:《Probing a Modified Luttinger Sum Rule in the Strongly Interacting 1D Fermi-Hubbard Model》 大黄猫 研究凝聚态理论 55 人赞同了该文章 熟悉多体物理或者费米液体的小伙伴肯定听说过Luttinger定理,也就是相互作用费米子体系的费米子密度正比于费米面包围的体积,写成公式就是 n=2VFS(2π...
上式中最后一项是常数项(shift of the energy),前两项可以看作是给定自旋的电子所感受到的来自自旋相反电子的有效势场的相互作用。例如:对于自旋向上的电子感受到的势场为: V\left(x\right)=U\left\langle \rho_{\downarrow } \left(x\right)\right\rangle, ...
nasacondaastrophysicshigh-energy-physicsfermigamma-ray-astronomyfermitools Updatedon Jul 21 Python rsnemmen/Fermi-LAT-tutorial Star9 Tutorial for Fermi LAT analysis hands on session: CTA School 2017, Sao Paulo sciencevirtual-machinefermigamma-ray-astronomyfermi-lat-data ...
The zero temperature phase diagram of binary boson-fermion mixtures in two-colour superlattices is investigated. The eigenvalue problem associated with the Bose-Fermi-Hubbard Hamiltonian is solved using an exact numerical diagonalization technique, supplemented by an adaptive basis truncation scheme. The ...
We numerically solve the Bogoliubov-de Gennes equations to model a three-dimensional (3D) gas of ultracold atoms in the superfluid phase flowing through a 1D optical lattice. We find that when the recoil energy is comparable to the Fermi energy, the presence of the periodic potential reduces ...
from zero if particle-hole symmetry is broken. Nevertheless, as observed in polyacetylene16,43, zigzag-terminated graphene44, and nodal-line semimetals11,45,46, topological polarization boundary modes can still frequently lie near the Fermi energy in real materials. ...
While in a 1D system of size Lx the energy difference between states with occupations away from half-filling scales as O(1/Lx), a fixed gap to charged excitations is a unique characteristic of a Mott insulator. Second, we observe the spatial decay of normalised charge correlations with ...