Dispersion of the Strongly Correlated Electron System near the Fermi Level Typeset Using Revt E X
نویسنده
چکیده
The reason for the appearance of two distinct bands in the photoemission of the single CuO 2 plane Bi 2 Sr 2−x La x CuO 6+δ near the Fermi level is discussed on the basis of the self-consistent solution of the two-dimensional t-J model.
منابع مشابه
Electronic Structure of Fibonacci Si Δ-doped Gaas Typeset Using Revt E X 1
We study the electronic structure of a new type of Fibonacci superlattice based on Si δ-doped GaAs. Assuming that δ-doped layers are equally spaced, quasiperiodicity is introduced by selecting two different donor concentrations and arranging them according to the Fibonacci series along the growth direction. The one-electron potential due to δ-doping is obtained by means of the Thomas-Fermi appr...
متن کاملTypeset Using Revt E X 1
The cross sections for the processes γν → γγν, γγ → γνν̄ and νν̄ → γγγ are calculated for a range of center of mass energies from belowme to considerably above me, but much less than mW . This enables us to treat the neutrino– electron coupling as a four–Fermi interaction and results in amplitudes which are electron box diagrams with three real photons and one virtual photon at their vertices. Th...
متن کاملProgress in Monte Carlo Calculations of Fermi Systems: Normal Liquid 3 He Typeset Using Revt E X
The application of the diffusion Monte Carlo method to a strongly interacting Fermi system as normal liquid 3 He is explored. We show that the fixed-node method together with the released-node technique and a systematic method to analytically improve the nodal surface constitute an efficient strategy to improve the calculation up to a desired accuracy. This methodology shows un-ambiguously that...
متن کامل! and Crossed Processes at Energies below M W Typeset Using Revt E X 1
The cross sections for the processes ! , ! and ! are calculated for a range of center of mass energies from below m e to considerably above m e , but much less than m W. This enables us to treat the neutrino{ electron coupling as a four{Fermi interaction and results in amplitudes which are electron box diagrams with three real photons and one virtual photon at their vertices. These calculations...
متن کاملNeutrino decoupling in the early Universe.
A calculation of neutrino decoupling in the early Universe, including full Fermi-Dirac statistics and electron mass dependence in the weak reaction rates, is presented. We nd that after decoupling, the electron neutrinos contribute 0.83% more to the relativistic energy density than in the standard scenario, where neutrinos are assumed not to share the heating from e annihilation. The correspond...
متن کامل