title: Detuning-Controlled Internal Oscillations in an Exciton-Polariton Condensate.
abstract: We theoretically analyze exciton-photon oscillatory dynamics within a homogenous polariton gas in the presence of energy detuning between the cavity and quantum well modes. Whereas pure Rabi oscillations consist of the particle exchange between the photon and exciton states in the polariton system without any oscillations of the phases of the two subcondensates, we demonstrate that any nonzero detuning results in oscillations of the relative phase of the photon and exciton macroscopic wave functions. Different initial conditions reveal a variety of behaviors of the relative phase between the two condensates, and a crossover from Rabi-like to Josephson-like oscillations is predicted.
authors.affiliation: National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia.
authors.forename: N S
authors.initials: NS
authors.lastname: Voronova
authors.affiliation: Institute for Nanotechnology in Microelectronics RAS, 119334 Moscow, Russia.
authors.forename: A A
authors.initials: AA
authors.lastname: Elistratov
authors.affiliation: Institute for Spectroscopy RAS, 142190 Troitsk, Moscow, Russia.|Moscow Institute of Physics and Technology (State University), 141700 Dolgoprudny, Moscow region, Russia.|Moscow Institute of Electronics and Mathematics, HSE, 101000 Moscow, Russia.
authors.forename: Yu E
authors.initials: YE
authors.lastname: Lozovik