Okumura, M and Onishi, H and Yamada, S and Machida, M (2010) Anomalous non-equilibrium electron transport in one-dimensional quantum nano wire at half-filling: time dependent density renormalization group study. Journal of Physics: Conference Series, 248 (1). 012031.
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Official URL: http://stacks.iop.org/1742-6596/248/i=1/a=012031
We study non-equilibrium properties of one-dimensional Hubbard model by the density-matrix renormalization-group method. First, we demonstrate stability of "doublon", which characterized by double occupation on a site due to the integrability of the model. Next, we present a kind of anomalous transport caused by the doublons created under strong non-equilibrium conditions in an optical lattice system regarded as an ideal testbed to investigate fundamental properties of the Hubbard model. Finally, we give a result on development of the pair correlation function in a strong non-equilibrium condition. This can be understood as a development of coherence among many excited doublons.
|Deposited By:||Prof. Alexey Ivanov|
|Deposited On:||01 Nov 2011 23:25|
|Last Modified:||02 Nov 2011 00:47|
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