تقرير
Wide-field SU(1,1) interferometer
| العنوان: | Wide-field SU(1,1) interferometer |
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| المؤلفون: | Frascella, G., Mikhailov, E. E., Takanashi, N., Zakharov, R. V., Tikhonova, O. V., Chekhova, M. V. |
| سنة النشر: | 2019 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | An ${\rm SU(1,1)}$ interferometer uses a sequence of two optical parametric amplifiers for achieving sub-shot-noise sensitivity to a phase shift introduced in between. We present the first realization of a wide-field ${\rm SU(1,1)}$ interferometer, where the use of a focusing element enables spatially multimode operation within a broad angle. Over this angle, the interference phase is found to be flat. This property is important for the high sensitivity to the phase front disturbance. Further, $-4.3\pm0.7$ dB quadrature squeezing, an essential requirement to the high sensitivity, is experimentally demonstrated for plane-wave modes inside the interferometer. Such an interferometer is useful not only for quantum metrology, but also in remote sensing, enhanced sub-shot-noise imaging, and quantum information processing. Comment: 4 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1364/OPTICA.6.001233 |
| URL الوصول: | http://arxiv.org/abs/1905.03143 |
| رقم الأكسشن: | edsarx.1905.03143 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1364/OPTICA.6.001233 |
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