Self-Maintaining Defect/Energetic Droplets from Two Interacting Bose-Einstein Condensates

• Authors: V. Dzhunushaliev
• Languages of publication: EN

Abstracts

EN

We consider two interacting Bose-Einstein condensates with different kinds of the potential energy of interaction of the condensates: (a) the standard potential, (b) the potential has a positive three-body and a negative two-body scattering terms, and (c) the potential has a positive four-body and a negative three-body scattering terms for the first Bose-Einstein condensate and a positive three-body and a negative two-body scattering terms for the second Bose-Einstein condensate. It is shown that in these cases there exist stationary regular spherically symmetric solutions. Physically such solution is either a defect or an energetic droplet created by the condensates. The defect is a cavity filled with one Bose-Einstein condensate on the background of another Bose-Einstein condensate. The droplet is an object with zero energy density at the infinity. For (a) and (b) cases the obtained objects are supported by a constant external trapping potential and for (c) case the droplet is a self-maintaining object without any external potential. The possibility of construction of an elementary logic qubit device on the basis of this droplet is discussed.

Keywords

EN

03.75.Lm; 03.75.Nt

Discipline

• 03.75.Nt: Other Bose-Einstein condensation phenomena
• 03.75.Lm: Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations(see also 74.50.+r Tunneling phenomena; Josephson effects in superconductivity)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 4
• Pages: 629-635

Dates

published

2013-10

received

2012-12-27

(unknown)

2013-06-24

Contributors

author

V. Dzhunushaliev

• Dept. Theor. and Nucl. Phys., KazNU, Almaty, 010008, Kazakhstan

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Identifiers

DOI

10.12693/APhysPolA.124.629