Pai, Ramesh V. ; Pandit, Rahul (2003) The one-dimensional extended Bose-Hubbard model Proceedings of the Indian Academy of Sciences - Chemical Sciences, 115 (5-6). pp. 721-726. ISSN 0253-4134
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Official URL: http://www.ias.ac.in/chemsci/Pdf-OctDec2003/Pc3360...
Related URL: http://dx.doi.org/10.1007/BF02708262
Abstract
We use the finite-size, density-matrix-renormalization-group(DMRG) method to obtain the zero-temperature phase diagram of the one-dimensional, extended Bose-Hubbard model, for mean boson density ρ=1, in the U-V plane (U and V are respectively, onsite and nearest-neighbour repulsive interactions between bosons). The phase diagram includes superfluid (SF), bosonic-Mott-insulator(MI), and mass-density-wave (MDW) phases. We determine the natures of the quantum phase transitions between these phases.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Boson Systems; Quantum Statistical Theory; Ground State; Elementary Excitations; Other Topics in Quantum Fluids and Solids; Liquid and Solid Helium |
| ID Code: | 33735 |
| Deposited On: | 30 Mar 2011 12:36 |
| Last Modified: | 17 May 2016 16:38 |
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