Two-Mode Variational Monte Carlo Study of Quasiparticle Excitations in Cuprate Superconductors
Fei Tan, Qiang-Hua Wang
DOI 10.1103/PhysRevLett.100.117004 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Recent measurements of quasiparticles in hole-doped cuprates revealed highly unusual features: (i) the doping-independent Fermi velocity, (ii) two energy scales in the quasiparticle spectral function, and (iii) a suppression of the low-energy spectral weight near the zone center. We explain these important facts by a novel two-mode variational Monte Carlo (VMC) study of the t−J model, which resolves a long-standing issue of the sum rule for quasiparticle spectral weights in VMC studies. The electron-doped case is also discussed.
Similar papers
Two-mode variational Monte Carlo study of Quasiparticle excitations in cuprates
similarity 0.91Fei Tan & Qiang-Hua Wang · 2007 · arXiv:0709.3870
Source status unknown — claims are unverified
Quasiparticles and c-axis coherent hopping in high-Tc superconductors
similarity 0.91P. S. Cornaglia et al.
Source status unknown — claims are unverified
A Variational Monte Carlo Study of the Current Carried by a Quasiparticle
similarity 0.91Cody P Nave et al. · 2005 · arXiv:cond-mat/0510001
Source status unknown — claims are unverified
Interacting Random Dirac Fermions in Superconducting Cuprates
similarity 0.90D. V. Khveshchenko et al.
Source status unknown — claims are unverified
Quasiparticle energies for a two-band interlayer-coupling model of a high-Tc superconductor
similarity 0.90W. A. Raine & W. N. Mathews, Jr.
Source status unknown — claims are unverified
Quasiparticle scattering rate in overdoped superconducting cuprates
similarity 0.90George Kastrinakis
Source status unknown — claims are unverified