✦ LIBER ✦

Pseudogap opening in the 2D Hubbard model within COM (SCBA)

✍ Scribed by Adolfo Avella; Ferdinando Mancini

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 206 KB
Volume: 460-462
Category: Article
ISSN: 0921-4534
DOI: 10.1016/j.physc.2007.03.225

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Tc and pseudogap in the 2-D attractive H

Tc and pseudogap in the 2-D attractive Hubbard model

✍ J.J. Rodríguez-Núñez; S. Schafroth; H. Beck; T. Schneider; M.H. Pedersen; R. Mic 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 155 KB

COM framework for d-wave superconductivi

COM framework for d-wave superconductivity in the 2D Hubbard model

✍ Adolfo Avella; Ferdinando Mancini; Evgeny Plekhanov 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 256 KB

The two-dimensional Hubbard model has been studied within the Composite Operator Method (COM) [1] starting from a basis made of the two Hubbard composite fields in the Nambu representation and computing the residual self-energy in the non-crossing approximation (NCA) [2]. The charge-charge, spinspin

Formation of a pseudogap in the 2D symme

Formation of a pseudogap in the 2D symmetric Anderson lattice model

✍ P.G. McQueen; D.W. Hess; J.W. Serene 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 135 KB

The effective electron-electron interact

The effective electron-electron interaction in the 2D Hubbard model

✍ N. Bulut; D.J. Scalapino 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 333 KB

Spin waves in the 2D Hubbard model beyon

Spin waves in the 2D Hubbard model beyond the RPA

✍ P.J.H. Denteneer; J.M.J. van Leeuwen 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 157 KB

The spin-wave velocity c for the repulsive Hubbard model on a square lattice at half-filling is calculated as the square root of spin stiffness over perpendicular susceptibility using the variational Monte Carlo method with Gutzwiller wave function. For 3 < U/t < 12, c increases by 34--15% compared

Lagrange Approach in Stochastic Quantiza

Lagrange Approach in Stochastic Quantization of the 2D Hubbard Model

✍ A.N. Kalinkin; V.M. Skorikov 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 94 KB

A new method of the generation of Green's function in external local and bilocal fields is proposed for the stochastic quantization of the 2D Hubbard model. The differential equations for Green's functions transform to the system of integral equations and it is solved numerically for a local Hubbard