تقرير
Quantum entanglement enables single-shot trajectory sensing for weakly interacting particles
| العنوان: | Quantum entanglement enables single-shot trajectory sensing for weakly interacting particles |
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| المؤلفون: | Chin, Zachary E., Leibrandt, David R., Chuang, Isaac L. |
| سنة النشر: | 2024 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Sensors for mapping the trajectory of an incoming particle find important utility in experimental high energy physics and searches for dark matter. For a quantum sensing protocol that uses projective measurements on a multi-qubit sensor array to infer the trajectory of an incident particle, we show that entanglement can dramatically reduce the particle-sensor interaction strength $\theta$ required for perfect trajectory discrimination. Within an interval of $\theta$ above this reduced threshold, any unentangled sensor requires $\Theta(\log(1/\epsilon))$ repetitions of the protocol to estimate the particle trajectory with $\epsilon$ error probability, whereas an entangled sensor can succeed with zero error in a single shot. Comment: 6 pages (2 figures) + 1 page Supplemental Material |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.05888 |
| رقم الأكسشن: | edsarx.2405.05888 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |