دورية أكاديمية
Weak measurements and quantum-to-classical transitions in free electron–photon interactions
| العنوان: | Weak measurements and quantum-to-classical transitions in free electron–photon interactions |
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| المؤلفون: | Yiming Pan, Eliahu Cohen, Ebrahim Karimi, Avraham Gover, Norbert Schönenberger, Tomáš Chlouba, Kangpeng Wang, Saar Nehemia, Peter Hommelhoff, Ido Kaminer, Yakir Aharonov |
| المصدر: | Light: Science & Applications, Vol 12, Iss 1, Pp 1-11 (2023) |
| بيانات النشر: | Nature Publishing Group, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Applied optics. Photonics LCC:Optics. Light |
| مصطلحات موضوعية: | Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467 |
| الوصف: | Abstract How does the quantum-to-classical transition of measurement occur? This question is vital for both foundations and applications of quantum mechanics. Here, we develop a new measurement-based framework for characterizing the classical and quantum free electron–photon interactions and then experimentally test it. We first analyze the transition from projective to weak measurement in generic light–matter interactions and show that any classical electron-laser-beam interaction can be represented as an outcome of weak measurement. In particular, the appearance of classical point-particle acceleration is an example of an amplified weak value resulting from weak measurement. A universal factor, $$\exp \left(-{\Gamma }^{2}/2\right)$$ exp − Γ 2 / 2 , quantifies the measurement regimes and their transition from quantum to classical, where $$\Gamma$$ Γ corresponds to the ratio between the electron wavepacket size and the optical wavelength. This measurement-based formulation is experimentally verified in both limits of photon-induced near-field electron microscopy and the classical acceleration regime using a DLA. Our results shed new light on the transition from quantum to classical electrodynamics, enabling us to employ the essence of the wave-particle duality of both light and electrons in quantum measurement for exploring and applying many quantum and classical light–matter interactions. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2047-7538 |
| Relation: | https://doaj.org/toc/2047-7538 |
| DOI: | 10.1038/s41377-023-01292-2 |
| URL الوصول: | https://doaj.org/article/46fb08c268364854bec0d2f2fe384fc5 |
| رقم الأكسشن: | edsdoj.46fb08c268364854bec0d2f2fe384fc5 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20477538 |
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| DOI: | 10.1038/s41377-023-01292-2 |