Dark and bright solitons in a Bose-Einstein condensate with a Feshbach resonance

Yuce C., Kilic A.

PHYSICA SCRIPTA, cilt.75, sa.2, ss.157-159, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75 Sayı: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1088/0031-8949/75/2/007
  • Dergi Adı: PHYSICA SCRIPTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.157-159
  • Anadolu Üniversitesi Adresli: Hayır

Özet

Both dark and bright solitons are constructed exactly for a Bose - Einstein condensation with a time-dependent scattering length in an expulsive parabolic potential. It is shown analytically how the size of the cloud and the sharp peak of the condensate changes via the Feshbach resonance. It is also found that the atom loss due to three-body recombination can be controlled with the help of Feshbach resonance. The exact calculation is performed to compare the rate of the atom loss between the system with time-dependent scattering length in an expulsive parabolic potential and the system with constant scattering length.