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arXiv · 0804.1930

Phase separated charge density wave phase in two species extended Bose-Hubbard model

Tapan Mishra·B. K. Sahoo·Ramesh V. Pai
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Abstract

We study the quantum phase transitions in a two component bose-mixture in a one-dimensional optical lattice. The calculations have been performed in the framework of the extended Bose-Hubbard model using the finite size density matrix renormalization group method. We obtain different phase transitions for the system for integer filling. When the inter-species on-site and the nearest neighbor interactions are larger than the intra-species on-site and also the nearest neighbor interactions, the system exhibits a phase separated charge density wave (PSCDW) order that is characterized by the two species being spatially separated and existing in the density wave phases.

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Tapan Mishra, B. K. Sahoo, Ramesh V. Pai. 2008-04-11. Phase separated charge density wave phase in two species extended Bose-Hubbard model. https://doi.org/10.1103/physreva.78.013632

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