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Collapse and revival in inter-band oscillations of a two-band Bose-Hubbard model
inter-band oscillations two-band Bose-Hubbard model
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2010/3/10
We study the effect of a many-body interaction on inter-band oscillations in a two-band Bose-Hubbard model with external Stark force. Weak and strong inter-band oscillations are observed, where the la...
Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures
Shubnikov-de Haas Oscillations Digital Magnetic Heterostructures
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2010/10/21
In this paper we theoretically investigate the magnetic-field and temperature dependence of the Shubnikov-de Haas oscillations in group II-VI modulation-doped Digital Magnetic Heterostructures. We sel...
Radial and Nonradial Oscillations of 63 Her (HD155514 = HR6391)
Stars: 63 Her pulsations evolution
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2010/4/13
An attempt has been made toward explaining the observed frequencies in 63 Her. A sequence of evolutionary models have been calculated up to a point where stellar parameters match the observed luminosi...