Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-08-21
Physical Review B 80, 115302 (2009).
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
16 pages, 6 figures. accepted in Physical Review B
Scientific paper
The Bose-Einstein condensation (BEC) of magnetoexcitonic polaritons in two-dimensional (2D) electron-hole system embedded in a semiconductor microcavity in a high magnetic field $B$ is predicted. There are two physical realizations of 2D electron-hole system under consideration: a graphene layer and quantum well (QW). A 2D gas of magnetoexcitonic polaritons is considered in a planar harmonic potential trap. Two possible physical realizations of this trapping potential are assumed: inhomogeneous local stress or harmonic electric field potential applied to excitons and a parabolic shape of the semiconductor cavity causing the trapping of microcavity photons. The effective Hamiltonian of the ideal gas of cavity polaritons in a QW and graphene in a high magnetic field and the BEC temperature as functions of magnetic field are obtained. It is shown that the effective polariton mass $M_{\rm eff}$ increases with magnetic field as $B^{1/2}$. The BEC critical temperature $T_{c}^{(0)}$ decreases as $B^{-1/4}$ and increases with the spring constant of the parabolic trap. The Rabi splitting related to the creation of a magnetoexciton in a high magnetic field in graphene and QW is obtained. It is shown that Rabi splitting in graphene can be controlled by the external magnetic field since it is proportional to $B^{-1/4}$, while in a QW the Rabi splitting does not depend on the magnetic field when it is strong.
Berman Oleg L.
Kezerashvili Roman Ya.
Lozovik Yurii E.
No associations
LandOfFree
Bose-Einstein condensation of trapped polaritons in 2D electron-hole systems in a high magnetic field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Bose-Einstein condensation of trapped polaritons in 2D electron-hole systems in a high magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bose-Einstein condensation of trapped polaritons in 2D electron-hole systems in a high magnetic field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-666158