Band insulator to Mott insulator transition in a bilayer Hubbard model
نویسندگان
چکیده
منابع مشابه
Superfluid to Mott-insulator transition in Bose-Hubbard models.
We study the superfluid-insulator transition in Bose-Hubbard models in one-, two-, and three-dimensional cubic lattices by means of a recently proposed variational wave function. In one dimension, the variational results agree with the expected Berezinskii-Kosterlitz-Thouless scenario of the interaction-driven Mott transition. In two and three dimensions, we find evidence that, across the trans...
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Krzysztof Byczuk, Walter Hofstetter, and Dieter Vollhardt Institute of Theoretical Physics, Warsaw University, Ulica Hoża 69, PL-00-681 Warszawa, Poland Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg, D-86135 Augsburg, Germany Lyman Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138, USA ~Received 2 S...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2007
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.75.193103