دورية أكاديمية
Extracting the physical sector of quantum states
| العنوان: | Extracting the physical sector of quantum states |
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| المؤلفون: | D Mogilevtsev, Y S Teo, J Řeháček, Z Hradil, J Tiedau, R Kruse, G Harder, C Silberhorn, L L Sanchez-Soto |
| المصدر: | New Journal of Physics, Vol 19, Iss 9, p 093008 (2017) |
| بيانات النشر: | IOP Publishing, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Science LCC:Physics |
| مصطلحات موضوعية: | quantum information, quantum tomography, quantum measurements, 03.65.Ud, 03.65.Wj, 03.67.-a, Science, Physics, QC1-999 |
| الوصف: | The physical nature of any quantum source guarantees the existence of an effective Hilbert space of finite dimension, the physical sector, in which its state is completely characterized with arbitrarily high accuracy. The extraction of this sector is essential for state tomography. We show that the physical sector of a state, defined in some pre-chosen basis, can be systematically retrieved with a procedure using only data collected from a set of commuting quantum measurement outcomes, with no other assumptions about the source. We demonstrate the versatility and efficiency of the physical-sector extraction by applying it to simulated and experimental data for quantum light sources, as well as quantum systems of finite dimensions. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1367-2630 |
| Relation: | https://doaj.org/toc/1367-2630 |
| DOI: | 10.1088/1367-2630/aa81b3 |
| URL الوصول: | https://doaj.org/article/da669cb4834248e4aa11b40d1406ef1f |
| رقم الأكسشن: | edsdoj.669cb4834248e4aa11b40d1406ef1f |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13672630 |
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| DOI: | 10.1088/1367-2630/aa81b3 |