Stability window of trapless polariton Bose-Einstein condensates

dc.contributor.authorSabari, S. [UNESP]
dc.contributor.authorKumar, R. Kishor
dc.contributor.authorRadha, R.
dc.contributor.authorMuruganandam, P.
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionGovernment College for Women (A)
dc.contributor.institutionUniversity of Otago
dc.contributor.institutionBharathidasan University
dc.date.accessioned2023-03-01T20:55:41Z
dc.date.available2023-03-01T20:55:41Z
dc.date.issued2022-06-01
dc.description.abstractWe theoretically explore the possibility of stabilizing the trapless polariton Bose-Einstein condensates (pBECs). Exploiting the variational method, we solve the associated nonlinear, complex Gross-Pitaevskii equation and derive the equation of motion for the amplitude and width of the condensate. These variational results described by ordinary differential equations are rewritten to perform a linear stability analysis to generate a stability window in the repulsive domain. A set of coupled nonlinear ordinary differential equations obtained through the variational approach are then solved by numerical simulations through the fourth-order Runge-Kutta method, which are further supported by the split-step Crank-Nicholson method, thereby setting the platform for stable pBECs. In particular, we generate a window containing system parameters in the g1-γeff space within which the system can admit stable condensates. The highlight of the results is that one observes beating effects in the real time evolution of the condensates with attractive interactions much similar to multicomponent BECs, and their periodicity can be varied by manipulating linear and nonlinear loss/gain terms. For repulsive condensates, one notices the stretching of the density.en
dc.description.affiliationInstitute of Theoretical Physics Unesp - Universidade Estadual Paulista
dc.description.affiliationCentre for Nonlinear Science (CeNSc) Department of Physics Government College for Women (A)
dc.description.affiliationDepartment of Physics Centre for Quantum Science Dodd-Walls Centre for Photonic and Quantum Technologies University of Otago
dc.description.affiliationDepartment of Physics Bharathidasan University
dc.description.affiliationUnespInstitute of Theoretical Physics Unesp - Universidade Estadual Paulista
dc.identifierhttp://dx.doi.org/10.1103/PhysRevB.105.224315
dc.identifier.citationPhysical Review B, v. 105, n. 22, 2022.
dc.identifier.doi10.1103/PhysRevB.105.224315
dc.identifier.issn2469-9969
dc.identifier.issn2469-9950
dc.identifier.scopus2-s2.0-85133683856
dc.identifier.urihttp://hdl.handle.net/11449/241296
dc.language.isoeng
dc.relation.ispartofPhysical Review B
dc.sourceScopus
dc.titleStability window of trapless polariton Bose-Einstein condensatesen
dc.typeArtigo
unesp.author.orcid0000-0002-6673-3069 0000-0002-6673-3069[1]
unesp.author.orcid0000-0002-5969-580X[3]
unesp.author.orcid0000-0002-3246-3566[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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