Dipolar droplet bound in a trapped Bose-Einstein condensate

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Young, Luis E.-S. [UNESP]
Adhikari, S. K. [UNESP]

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We study the statics and dynamics of a dipolar Bose-Einstein condensate (BEC) droplet bound by interspecies contact interaction in a trapped nondipolar BEC. Our findings are demonstrated in terms of stability plots of a dipolar 164Dy droplet bound in a trapped nondipolar 87Rb BEC with a variable number of 164Dy atoms and interspecies scattering length. A trapped nondipolar BEC of a fixed number of atoms can bind only a dipolar droplet containing fewer atoms than a critical number for the interspecies scattering length between two critical values. The shape and size (statics) as well as the small breathing oscillation (dynamics) of the dipolar BEC droplet are studied using numerical and variational solutions of a mean-field model. We also suggest an experimental procedure for achieving such a 164Dy droplet by relaxing the trap on the 164Dy BEC in a trapped binary 87Rb-164Dy mixture. © 2013 American Physical Society.



Bose-Einstein condensates, Contact interaction, Critical numbers, Critical value, Experimental procedure, Fixed numbers, Mean field models, Scattering length, Shape and size, Variable number, Variational solutions, Atoms, Dynamics, Rubidium, Statistical mechanics, Drops

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Physical Review A - Atomic, Molecular, and Optical Physics, v. 87, n. 1, 2013.