Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1866998 | Physics Letters A | 2012 | 4 Pages |
The nonlinear dynamics of a Bose–Einstein condensate (BEC) of dipolar excitons in two-layer graphene is studied. It is demonstrated that a steady turbulent state is formed in this system. A comparison between the dynamics of the exciton BEC in two-layer graphene and those in GaAs/AlGaAs coupled quantum wells shows that turbulence is a general effect in a BEC.
► The nonlinear dynamics of a Bose–Einstein condensate (BEC) of dipolar excitons in two-layer graphene is considered. ► The formation of a steady turbulent state in the system of dipolar excitons in two-layer graphene is demonstrated. ► Estimated the dipolar exciton lifetime in two-layer graphene by taking into account the electron–hole Coulomb attraction. ► A comparison of the dynamics of the exciton BEC in two-layer graphene and in coupled quantum wells is given. ► Demonstrated that turbulence is a general effect in a BEC.