PMID- 30239334
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1361-648X (Electronic)
IS  - 0953-8984 (Linking)
VI  - 30
IP  - 45
DP  - 2018 Nov 14
TI  - Probing non-locality of interactions in a Bose-Einstein condensate using 
      solitons.
PG  - 455602
LID - 10.1088/1361-648X/aae33f [doi]
AB  - We consider a Bose-Einstein condensate (BEC) with non-local inter-particle 
      interactions. The local Gross-Pitaevskii (GP) equation is valid for the gas 
      parameter [Formula: see text], but for [Formula: see text], the BEC is described 
      by a modified GP equation (MGPE). We study the exact solutions of the MGPE 
      describing bright and dark solitons. It turns out that the width of these 
      non-local solitons has qualitatively similar behaviour as the modified healing 
      length due to the non-local interactions of the MGPE. We also study the effect of 
      the non-locality and gas parameter (nu) on the stability of the solitons using the 
      Vakhitov-Kolokolov (VK) stability criterion. We show that these soliton solutions 
      are stable according to the VK criterion. Further, the stability of these soliton 
      solutions gets enhanced due to the non-locality of interactions.
FAU - Pendse, Abhijit
AU  - Pendse A
AD  - Indian Institute of Science Education and Research, Pune, Maharashtra 411008, 
      India.
FAU - Bhattacharyay, A
AU  - Bhattacharyay A
LA  - eng
PT  - Journal Article
PL  - England
TA  - J Phys Condens Matter
JT  - Journal of physics. Condensed matter : an Institute of Physics journal
JID - 101165248
EDAT- 2018/09/22 06:00
MHDA- 2018/09/22 06:01
CRDT- 2018/09/22 06:00
PHST- 2018/09/22 06:00 [pubmed]
PHST- 2018/09/22 06:01 [medline]
PHST- 2018/09/22 06:00 [entrez]
AID - 10.1088/1361-648X/aae33f [doi]
PST - ppublish
SO  - J Phys Condens Matter. 2018 Nov 14;30(45):455602. doi: 10.1088/1361-648X/aae33f.