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pro vyhledávání: '"Ostlund, S."'
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Autor:
Ostlund, S.
Publikováno v:
Phys.Rev.B76:153101,2007
The strong coupling half-filled Kondo lattice model is an important example of a strongly interacting dense Fermi system for which conventional Fermi gas analysis has thus far failed. We remedy this by deriving an exact transformation that maps the m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703768
Publikováno v:
Phys. Fluids 19, 113303 (2007)
We consider particles suspended in a randomly stirred or turbulent fluid. When effects of the inertia of the particles are significant, an initially uniform scatter of particles can cluster together. We analyse this 'unmixing' effect by calculating t
Externí odkaz:
http://arxiv.org/abs/nlin/0612061
Publikováno v:
Phys. Rev. Lett. 95, 240602 (2005)
We calculate the Lyapunov exponents for particles suspended in a random three-dimensional flow, concentrating on the limit where the viscous damping rate is small compared to the inverse correlation time. In this limit Lyapunov exponents are obtained
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506175
Autor:
Granath, M., Ostlund, S.
Publikováno v:
Phys. Rev. B 68, 205107 (2003)
We consider the orbitally degenerate 3-band Hubbard model with on-site interactions which favor low spin and low orbital angular momentum using standard second order perturbation theory in the large Hubbard-U limit. At even integer filling this model
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309032
Autor:
Granath, M., Ostlund, S.
Publikováno v:
Phys. Rev. B 66, 180501(R) (2002)
We derive a model for the highest occupied molecular orbital band of a C60 crystal which includes on-site electron-electron interactions. The form of the interactions are based on the icosahedral symmetry of the C60 molecule together with a perturbat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0203324
Autor:
Ostlund, S.
This letter discusses the Landau Ginzburg theory of a Josephson junction composed of on one side a pure d-wave superconductor oriented with the $(110)$ axis normal to the junction and on the other side either s-wave or d-wave oriented with $(100)$ no
Externí odkaz:
http://arxiv.org/abs/cond-mat/9810084
Publikováno v:
Phys. Rev. B52, 3662 (1995)
The two-dimensional extended Hubbard model that includes a nearest- neighbor Heisenberg interaction is studied using a mean-field theory where quasiparticles are defined by an U(8) group of canonical transformations. The theory is a generalization of
Externí odkaz:
http://arxiv.org/abs/cond-mat/9411071
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2009 Jul . 106(30), 12512-12517.
Externí odkaz:
https://www.jstor.org/stable/40484167
Akademický článek
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