Polarized Superfluidity in the Imbalanced Attractive Hubbard Model
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概要
- 論文の詳細を見る
We investigate the attractive Hubbard model in infinite spatial dimensions by means of dynamical mean-field theory. Using a continuous-time Monte Carlo algorithm in the Nambu formalism as an impurity solver, we directly deal with the superfluid phase in the population imbalanced system. By calculating the superfluid order parameter, the magnetization, and the density of states, we discuss how the polarized superfluid state is realized in the attractive Hubbard model at quarter filling. We find that a drastic change in the density of states is induced by spin imbalanced populations in the superfluid state.
- Physical Society of Japanの論文
- 2010-06-15
著者
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Koga Akihisa
Department Of Applied Physics Osaka University
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Philipp Werner
Theoretische Physik, ETH Zurich, Zürich 8093, Switzerland
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Werner Philipp
Theoretische Physik, ETH Zurich, Zürich 8093, Switzerland
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Akihisa Koga
Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
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