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Oscillating charge currents of one-dimensional Hubbard model in an electric field | | Yong Zheng
; | | Date: |
14 Nov 2020 | | Abstract: | The time evolution properties of charge current for the one-dimensional
Hubbard model in an electric field have been studied in a rigorous manner. We
find that there is a complete and orthonormal set of time-evolution states for
which the charge current can only keep zero or oscillate constantly, differing
from the possible picture of damped or over-damped Bloch oscillations due to
strong correlations. It is also found that, associated with these states, there
is a set of constant phase factors, which are uniquely determined and are very
useful on discussing the long-time evolution behaviors of the system. | | Source: | arXiv, 2011.07220 | | Services: | Forum | Review | PDF | Favorites | |
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