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Volumn 66, Issue 2, 2008, Pages 271-278

Non-perturbative renormalization-group approach to lattice models

Author keywords

[No Author keywords available]

Indexed keywords

BRILLOUIN ZONES; CONTINUUM MODELS; FINITE NUMBERS; FLOW EQUATIONS; HYPERCUBIC LATTICES; LATTICE MODELS; NUMERICAL SOLUTIONS; PERTURBATIVE RENORMALIZATION; RECIPROCAL LATTICES;

EID: 57849134518     PISSN: 14346028     EISSN: 14346036     Source Type: Journal    
DOI: 10.1140/epjb/e2008-00417-1     Document Type: Article
Times cited : (22)

References (22)
  • 5
    • 57849147827 scopus 로고    scopus 로고
    • e-print arXiv:cond-mat/0702365
    • B. Delamotte, e-print arXiv:cond-mat/0702365
    • Delamotte, B.1
  • 6
    • 57849088392 scopus 로고    scopus 로고
    • The derivative expansion is a good approximation to the vertices only when the external momenta are smaller than the lowest mass in the problem. For massless theories, it therefore provides information only about the vertices at vanishing momenta
    • The derivative expansion is a good approximation to the vertices only when the external momenta are smaller than the lowest mass in the problem. For massless theories, it therefore provides information only about the vertices at vanishing momenta
  • 15
    • 40749109824 scopus 로고    scopus 로고
    • Europhys. Lett. 2007 80 50007 An example is given by the Mott-superfluid transition of interacting lattice bosons at commensurate density (integer number of bosons per site). In the absence of a lattice*the ground state is always superfluid regardless of the strength of the interactions between bosonNPRG s. studies of interacting bosons in the continuum have recently been reported in
    • An example is given by the Mott-superfluid transition of interacting lattice bosons at commensurate density (integer number of bosons per site). In the absence of a lattice, the ground state is always superfluid regardless of the strength of the interactions between bosons. NPRG studies of interacting bosons in the continuum have recently been reported in C. Wetterich, Phys. Rev. B 77, 064504 (2008); N. Dupuis, K. Sengupta, Europhys. Lett. 80, 50007 (2007)
    • (2008) Phys. Rev. B , vol.77 , pp. 064504
    • Wetterich, C.1    Dupuis, N.2    Sengupta, K.3
  • 20
    • 57849152173 scopus 로고    scopus 로고
    • See e.g. Appendix A in reference Blaizot07
    • See e.g. Appendix A in reference Blaizot07
  • 21
    • 84864175818 scopus 로고    scopus 로고
    • 0) and the parameters of the underlying lattice model is usually unknown
    • 0) and the parameters of the underlying lattice model is usually unknown
  • 22
    • 84864174487 scopus 로고    scopus 로고
    • 0(t=0)$ and λ̃(t=0) based on the continuum model flow equations run backwards in "time" from t=-16 (green lines in Figs. 2 and 3) are given by 75 and 0.38, respectively
    • 0(t=0)$ and λ̃(t=0) based on the continuum model flow equations run backwards in "time" from t=-16 (green lines in Figs. 2 and 3) are given by 75 and 0.38, respectively


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.