Exotic superconductivity through bosons in a dynamical cluster approximation

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dynamical Cluster Approximation

The dynamical cluster approximation (DCA) is a method which systematically incorporates nonlocal corrections to the dynamical mean-field approximation. Here we present a pedagogical discussion of the DCA by describing it as a ̊-derivable coarse-graining approximation in k-space, which maps an infinite lattice problem onto a periodic finite-sized cluster embedded in a self-consistently determine...

متن کامل

Dynamical cluster approximation employing the fluctuation exchange approximation as a cluster solver

We employ the dynamical cluster approximation ~DCA! in conjunction with the fluctuation exchange approximation ~FLEX! to study the Hubbard model. The DCA is a technique to systematically restore the momentum conservation at the internal vertices of Feynman diagrams relinquished in the dynamical mean field approximation. The FLEX is a perturbative diagrammatic approach in which classes of Feynma...

متن کامل

Light exotic Higgs bosons at the LHC

Most models of new physics contain extended Higgs sectors with multiple Higgs bosons. The observation of an additional Higgs boson, besides the ∼ 125 GeV ‘hobs’, will thus serve as an irrefutable evidence of physics beyond the Standard Model (SM). However, even when fairly light, these additional Higgs bosons may have escaped detection at the Large Electron-Positron (LEP) collider, the Tevatron...

متن کامل

Exotic nuclei in a microscopic cluster model

We present a microscopic description of light exotic nuclei (typically A ≤ 40), based on the cluster assumption. Approximate solutions of the Schrödinger equations are derived in the Generator Coordinate Method. We first give a general presentation of the model, which is applied to twoand three-cluster systems. Application to the 5H nucleus shows that the 5H lifetime could be larger than the 4H...

متن کامل

Dynamical cluster approximation: Nonlocal dynamics of correlated electron systems

We recently introduced the dynamical cluster approximation ~DCA!, a technique that includes short-ranged dynamical correlations in addition to the local dynamics of the dynamical mean-field approximation while preserving causality. The technique is based on an iterative self-consistency scheme on a finite-size periodic cluster. The dynamical mean-field approximation ~exact result! is obtained b...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review B

سال: 2015

ISSN: 1098-0121,1550-235X

DOI: 10.1103/physrevb.92.184505