تقرير
Current fluctuations in open quantum systems: Bridging the gap between quantum continuous measurements and full counting statistics
| العنوان: | Current fluctuations in open quantum systems: Bridging the gap between quantum continuous measurements and full counting statistics |
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| المؤلفون: | Landi, Gabriel T., Kewming, Michael J., Mitchison, Mark T., Potts, Patrick P. |
| المصدر: | PRX Quantum 5, 020201 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Statistical Mechanics |
| الوصف: | Continuously measured quantum systems are characterized by an output current, in the form of a stochastic and correlated time series which conveys crucial information about the underlying quantum system. The many tools used to describe current fluctuations are scattered across different communities: quantum opticians often use stochastic master equations, while a prevalent approach in condensed matter physics is provided by full counting statistics. These, however, are simply different sides of the same coin. Our goal with this tutorial is to provide a unified toolbox for describing current fluctuations. This not only provides novel insights, by bringing together different fields in physics, but also yields various analytical and numerical tools for computing quantities of interest. We illustrate our results with various pedagogical examples, and connect them with topical fields of research, such as waiting-time statistics, quantum metrology, thermodynamic uncertainty relations, quantum point contacts and Maxwell's demons. Comment: This is a tutorial paper |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PRXQuantum.5.020201 |
| URL الوصول: | http://arxiv.org/abs/2303.04270 |
| رقم الأكسشن: | edsarx.2303.04270 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PRXQuantum.5.020201 |
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