Number of Repetitious States in One Dimensional Hubbard Model: a Density Matrix Renormalization Group Perspective

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Title	Number of Repetitious States in One Dimensional Hubbard Model: a Density Matrix Renormalization Group Perspective
Authors	Solaimani, M.
ORCID
Keywords	Density matrix renormalization group Repetitious states Reduction of the Hilbert space dimension
Type	Article
Date of Issue	2015
URI	http://essuir.sumdu.edu.ua/handle/123456789/44576
Publisher	Sumy State University
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Citation	M. Solaimani, J. Nano- Electron. Phys. 7 No 4, 04101 (2015)
Abstract	In this work we investigate some aspects of density matrix renormalization group (DMRG) method. We intuitively show why DMRG works better for open boundary conditions and why the number of sweeps in a periodic system is greater than an open one. We also describe reduction of the Hilbert space dimension using symmetries. Finally, we show that eliminating the repetitious states may help as much as symmetries to reduce the Hilbert space and thus increase the DMRG speed.
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)