Modulational instability criteria for two-component Bose-Einstein condensates

Yannis Kourakis; P K Shukla; M. Marklund; L. Stenflo

doi:10.1140/epjb/e2005-00271-7

Modulational instability criteria for two-component Bose-Einstein condensates

Yannis Kourakis
, P K Shukla
, M. Marklund
, L. Stenflo

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

The stability of colliding Bose-Einstein condensates is investigated. A set of coupled Gross-Pitaevskii equations is thus considered, and analyzed via a perturbative approach. No assumption is made on the signs ( or magnitudes) of the relevant parameters like the scattering lengths and the coupling coefficients. The formalism is therefore valid for asymmetric as well as symmetric coupled condensate wave states. A new set of explicit criteria is derived and analyzed. An extended instability region, in addition to an enhanced instability growth rate, is predicted for unstable two component bosons, as compared to the individual ( uncoupled) state.

Original language	English
Pages (from-to)	381-384
Number of pages	4
Journal	European Physical Journal B
Volume	46
Issue number	3
DOIs	https://doi.org/10.1140/epjb/e2005-00271-7
Publication status	Published - Aug 2005

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1140/epjb/e2005-00271-7

Cite this

@article{98c19680bffa42c9ba9e24f86677c7bf,

title = "Modulational instability criteria for two-component Bose-Einstein condensates",

abstract = "The stability of colliding Bose-Einstein condensates is investigated. A set of coupled Gross-Pitaevskii equations is thus considered, and analyzed via a perturbative approach. No assumption is made on the signs ( or magnitudes) of the relevant parameters like the scattering lengths and the coupling coefficients. The formalism is therefore valid for asymmetric as well as symmetric coupled condensate wave states. A new set of explicit criteria is derived and analyzed. An extended instability region, in addition to an enhanced instability growth rate, is predicted for unstable two component bosons, as compared to the individual ( uncoupled) state.",

author = "Yannis Kourakis and Shukla, \{P K\} and M. Marklund and L. Stenflo",

year = "2005",

month = aug,

doi = "10.1140/epjb/e2005-00271-7",

language = "English",

volume = "46",

pages = "381--384",

journal = "European Physical Journal B",

issn = "1434-6036",

publisher = "Springer New York",

number = "3",

}

TY - JOUR

T1 - Modulational instability criteria for two-component Bose-Einstein condensates

AU - Kourakis, Yannis

AU - Shukla, P K

AU - Marklund, M.

AU - Stenflo, L.

PY - 2005/8

Y1 - 2005/8

N2 - The stability of colliding Bose-Einstein condensates is investigated. A set of coupled Gross-Pitaevskii equations is thus considered, and analyzed via a perturbative approach. No assumption is made on the signs ( or magnitudes) of the relevant parameters like the scattering lengths and the coupling coefficients. The formalism is therefore valid for asymmetric as well as symmetric coupled condensate wave states. A new set of explicit criteria is derived and analyzed. An extended instability region, in addition to an enhanced instability growth rate, is predicted for unstable two component bosons, as compared to the individual ( uncoupled) state.

AB - The stability of colliding Bose-Einstein condensates is investigated. A set of coupled Gross-Pitaevskii equations is thus considered, and analyzed via a perturbative approach. No assumption is made on the signs ( or magnitudes) of the relevant parameters like the scattering lengths and the coupling coefficients. The formalism is therefore valid for asymmetric as well as symmetric coupled condensate wave states. A new set of explicit criteria is derived and analyzed. An extended instability region, in addition to an enhanced instability growth rate, is predicted for unstable two component bosons, as compared to the individual ( uncoupled) state.

U2 - 10.1140/epjb/e2005-00271-7

DO - 10.1140/epjb/e2005-00271-7

M3 - Article

SN - 1434-6036

VL - 46

SP - 381

EP - 384

JO - European Physical Journal B

JF - European Physical Journal B

IS - 3

ER -

Modulational instability criteria for two-component Bose-Einstein condensates

Abstract

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this