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Detuning-Controlled Internal Oscillations in an Exciton-Polariton Condensate
N S Voronova1, A A Elistratov2, Yu E Lozovik3,4,5
1National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia.
Physical Review Letters
|November 14, 2015
Summary
We found that energy detuning in polariton condensates causes phase oscillations between exciton and photon components. This leads to a transition from Rabi-like to Josephson-like dynamics, impacting quantum system behavior.
Area of Science:
- Quantum Optics
- Condensed Matter Physics
- Mesoscopic Physics
Background:
- Polariton gases exhibit quantum phenomena like Rabi oscillations.
- Understanding exciton-photon coupling is crucial for quantum technologies.
Purpose of the Study:
- To theoretically investigate exciton-photon oscillatory dynamics in polariton condensates.
- To analyze the effect of energy detuning on phase dynamics.
Main Methods:
- Theoretical analysis of exciton-photon dynamics.
- Modeling homogenous polariton gas with energy detuning.
Main Results:
- Nonzero detuning induces oscillations in the relative phase of photon and exciton wave functions.
- Different initial conditions lead to varied phase behaviors.
- A crossover from Rabi-like to Josephson-like oscillations is predicted.
Conclusions:
- Energy detuning fundamentally alters polariton condensate dynamics.
- Phase oscillations are a key signature of detuning effects.
- The predicted crossover offers new avenues for controlling quantum states.
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