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Title of Journal: J Low Temp Phys

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Abbravation: Journal of Low Temperature Physics

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Springer US

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1573-7357

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Critical Velocities in TwoComponent Superfluid Bo

Authors: L Yu Kravchenko D V Fil
Publish Date: 2007/11/21
Volume: 150, Issue: 3-4, Pages: 612-617
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Abstract

On the ground of the Landau criterion we study the behavior of critical velocities in a superfluid twocomponent Bose gas It is found that under motion of the components with different velocities the velocity of each component should not be lower than a minimum phase velocity of elementary excitations s − The Landau criterion yields a relation between the critical velocities of the components v c1 v c2 The velocity of one or even both components may exceed s − The maximum value of the critical velocity of a given component can be reached when the other component does not move The approach is generalized for a twocomponent condensate confined in a cylindrical harmonic potential

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  2. High-Field Transitions in ErFe 11 Ti and HoFe 11 Ti Single Crystals
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  6. Statistics of Quantum Turbulence in Superfluid He
  7. Adsorption of Helium Atoms on Two-Dimensional Substrates
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  19. Self-similar Singularities in the Kinetics of Condensation
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