Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Klepfish, E. G."'
A conserving T-matrix approximation is applied to the two-dimensional attractive Hubbard model in the low-density regime. A set of self-consistent equations is solved in the real-frequency domain to avoid the analytic continuation procedure. By tunin
Externí odkaz:
http://arxiv.org/abs/cond-mat/9802239
Publikováno v:
Nucl.Phys.Proc.Suppl. 60A (1998) 220-234
A brief summary of the formulation of QCD at finite chemical potental, $\mu$, is presented. The failure of the quenched approximation to the problem is reviewed. Results are presented for dynamical simulations of the theory at strong and intermediate
Externí odkaz:
http://arxiv.org/abs/hep-lat/9705042
Publikováno v:
Phys.Rev. D56 (1997) 7063-7072
We study QCD at non-zero quark density, zero temperature, infinite coupling using the Glasgow algorithm. An improved complex zero analysis gives a critical point \mu_c in agreement with that of chiral symmetry restoration computed with strong couplin
Externí odkaz:
http://arxiv.org/abs/hep-lat/9705038
A Quantum Monte Carlo calculation of dynamical spin susceptibility in the half-filled 2D Hubbard model is presented for temperature $T=0.2t$ and an intermediate on-site repulsion $U=4t$. Using the singular value decomposition technique we succeed in
Externí odkaz:
http://arxiv.org/abs/cond-mat/9602135
A finite size scaling is applied to the Yang-Lee zeros of the grand canonical partition function for the 2-D Hubbard model in the complex chemical potential plane. The logarithmic scaling of the imaginary part of the zeros with the system size indica
Externí odkaz:
http://arxiv.org/abs/cond-mat/9503139
The singular value decomposition technique is used to reconstruct the electronic spectral weight function for a half-filled Hubbard model with on-site repulsion $U=4t$ from Quantum Monte Carlo data. A two-band structure for the single-particle excita
Externí odkaz:
http://arxiv.org/abs/cond-mat/9501119
Autor:
Barbour, I. M., Klepfish, E. G.
We present a new technique for a numerical analysis of the phase structure of the 2D Hubbard model as a function of the hole chemical potential. The grand canonical partition function for the model is obtained via Monte Carlo simulations. The depende
Externí odkaz:
http://arxiv.org/abs/hep-lat/9205024
Publikováno v:
Nucl.Phys. B389 (1993) 285-300
The behaviour of the chiral condensate in QCD is investigated by means of a study of the distribution of the zeros of the partition function in the complex quark mass plane. Simulations are performed at fixed temperature on three different spatial vo
Externí odkaz:
http://arxiv.org/abs/hep-lat/9205019
Autor:
Riposo, Julien1 (AUTHOR) julien.riposo@gmail.com, Klepfish, E G1 (AUTHOR)
Publikováno v:
Journal of Asset Management. Mar2023, Vol. 24 Issue 2, p97-107. 11p.
Autor:
Klepfish, E. G., Krasnitz, A.
Publikováno v:
Variational Calculations in Quantum Field Theory: Proceedings of the International Workshop; 1988, p280-293, 14p