تقرير
Quantum beats of a macroscopic polariton condensate in real space
| العنوان: | Quantum beats of a macroscopic polariton condensate in real space |
|---|---|
| المؤلفون: | Cherbunin, R. V., Liubomirov, A., Novokreschenov, D., Kudlis, A., Kavokin, A. V. |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Optics |
| الوصف: | We observe experimentally the harmonic oscillations of a macroscopic many-body wavefunction of the bosonic condensate of exciton-polaritons confined in an elliptical trap. The oscillations are caused by quantum beats between two size-quantized states of the polariton condensate split in energy due to the ellipticity of the trap. The eigen-functions of these states are $p$-shape orbitals tilted with respect to the main and the short axes of the trap. The beats between these states manifest themselves in a macroscopic periodical redistribution of the polariton density in real space. The control of frequency, amplitude and phase of the beats is achieved by sending non-resonant laser pulses to specific spots inside the trap. We visualize the condensate wave-function dynamics on a streak-camera and map them to the Bloch sphere demonstrating the implementation of Hadamard and Pauli-Z operations. The decay time of the observed oscillations is on a nanosecond scale. It exceeds the individual exciton-polariton life-time by two orders of magnitude and the coherence-time of the condensate by one order of magnitude. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.12429 |
| رقم الأكسشن: | edsarx.2407.12429 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |