Josephson dynamics for coupled polariton modes under the atom-field interaction in the cavity
We consider a new approach to the problem of Bose-Einstein condensation (BEC) of polaritons for atom-field interaction under the strong coupling regime in the cavity. We investigate the dynamics of two macroscopically populated polariton modes corresponding to the upper and lower branch energy state...
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| Veröffentlicht in: | arXiv.org 2007-09 |
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| creator | Alodjants, A P Arakelian, S M Bagayev, S N Egorov, V S A Yu Leksin |
| description | We consider a new approach to the problem of Bose-Einstein condensation (BEC) of polaritons for atom-field interaction under the strong coupling regime in the cavity. We investigate the dynamics of two macroscopically populated polariton modes corresponding to the upper and lower branch energy states coupled via Kerr-like nonlinearity of atomic medium. We found out the dispersion relations for new type of collective excitations in the system under consideration. Various temporal regimes like linear (nonlinear) Josephson transition and/or Rabi oscillations, macroscopic quantum self-trapping (MQST) dynamics for population imbalance of polariton modes are predicted. We also examine the switching properties for time-averaged population imbalance depending on initial conditions, effective nonlinear parameter of atomic medium and kinetic energy of low-branch polaritons. |
| doi_str_mv | 10.48550/arxiv.0709.3084 |
| format | Article |
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| subjects | Coupled modes Initial conditions Kinetic energy Nonlinearity Physics - Quantum Physics Polaritons |
| title | Josephson dynamics for coupled polariton modes under the atom-field interaction in the cavity |
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