Report
Doppler-Enhanced Quantum Magnetometry with thermal Rydberg atoms
| العنوان: | Doppler-Enhanced Quantum Magnetometry with thermal Rydberg atoms |
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| المؤلفون: | Barik, Shovan Kanti, S, Silpa B, Ramana, M Venkat, Dutta, Shovan, Roy, Sanjukta |
| المصدر: | New J. Phys. 26, 073036 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Physics - Atomic Physics, Quantum Physics |
| الوصف: | We report experimental measurements showing how one can combine quantum interference and thermal Doppler shifts at room temperature to detect weak magnetic fields. We pump ${}^{87}$Rb atoms to a highly-excited, Rydberg level using a probe and a coupling laser, leading to narrow transmission peaks of the probe due to destructive interference of transition amplitudes, known as Electromagnetically Induced Transparency (EIT). While it is customary in such setups to use counterpropagating lasers to minimize the effect of Doppler shifts, here we show, on the contrary, that one can harness Doppler shifts in a copropagating arrangement to produce an enhanced response to a magnetic field. In particular, we demonstrate an order-of-magnitude bigger splitting in the transmission spectrum as compared to the counterpropagating case. We explain and generalize our findings with theoretical modelling and simulations based on a Lindblad master equation. Our results pave the way to using quantum effects for magnetometry in readily deployable room-temperature platforms. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1367-2630/ad6179 |
| URL الوصول: | http://arxiv.org/abs/2308.05190 |
| رقم الانضمام: | edsarx.2308.05190 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1367-2630/ad6179 |
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