تقرير
Observation of edge magnetoplasmon squeezing in a quantum Hall conductor
| العنوان: | Observation of edge magnetoplasmon squeezing in a quantum Hall conductor |
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| المؤلفون: | Bartolomei, H., Bisognin, R., Kamata, H., Berroir, J. -M., Bocquillon, E., Ménard, G., Plaçais, B., Cavanna, A., Gennser, U., Jin, Y., Degiovanni, P., Mora, C., Fève, G. |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | Squeezing of the quadratures of the electromagnetic field has been extensively studied in optics and microwaves. However, previous works focused on the generation of squeezed states in a low impedance ($Z_0 \approx 50 \Omega$) environment. We report here on the demonstration of the squeezing of bosonic edge magnetoplasmon modes in a quantum Hall conductor whose characteristic impedance is set by the quantum of resistance ($R_K \approx 25 k \Omega$), offering the possibility of an enhanced coupling to low-dimensional quantum conductors. By applying a combination of dc and ac drives to a quantum point contact, we demonstrate squeezing and observe a noise reduction 18\% below the vacuum fluctuations. This level of squeezing can be improved by using more complex conductors, such as ac driven quantum dots or mesoscopic capacitors. Comment: 6+2 pages, 3+1 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.130.106201 |
| URL الوصول: | http://arxiv.org/abs/2210.04279 |
| رقم الأكسشن: | edsarx.2210.04279 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.130.106201 |
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