The coherence of light is fundamentally tied to the quantum coherence of the emitting particle
Abstract
Coherent emission of light by free charged particles is believed to be successfully captured by classical electromagnetism in all experimental settings. However, recent advances triggered fundamental questions regarding the role of the particle wave function in these processes. Here, we find that even in seemingly classical experimental regimes, light emission is fundamentally tied to the quantum coherence and correlations of the emitting particle. We use quantum electrodynamics to show how the particle’s momentum uncertainty determines the optical coherence of the emitted light. We find that the temporal duration of Cherenkov radiation, envisioned for almost a century as a shock wave of light, is limited by underlying entanglement between the particle and light. Our findings enable new capabilities in electron microscopy for measuring quantum correlations of shaped electrons. Last, we propose new Cherenkov detection schemes, whereby measuring spectral photon autocorrelations can unveil the wave function structure of any charged high-energy particle.
- Authors:
-
- Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
- School of Electrical Engineering, Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel.
- Department of Electrical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
- Publication Date:
- Research Org.:
- Krell Institute, Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1781236
- Alternate Identifier(s):
- OSTI ID: 1816725
- Grant/Contract Number:
- FG02-97ER25308
- Resource Type:
- Published Article
- Journal Name:
- Science Advances
- Additional Journal Information:
- Journal Name: Science Advances Journal Volume: 7 Journal Issue: 18; Journal ID: ISSN 2375-2548
- Publisher:
- American Association for the Advancement of Science (AAAS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Karnieli, Aviv, Rivera, Nicholas, Arie, Ady, and Kaminer, Ido. The coherence of light is fundamentally tied to the quantum coherence of the emitting particle. United States: N. p., 2021.
Web. doi:10.1126/sciadv.abf8096.
Karnieli, Aviv, Rivera, Nicholas, Arie, Ady, & Kaminer, Ido. The coherence of light is fundamentally tied to the quantum coherence of the emitting particle. United States. https://doi.org/10.1126/sciadv.abf8096
Karnieli, Aviv, Rivera, Nicholas, Arie, Ady, and Kaminer, Ido. Fri .
"The coherence of light is fundamentally tied to the quantum coherence of the emitting particle". United States. https://doi.org/10.1126/sciadv.abf8096.
@article{osti_1781236,
title = {The coherence of light is fundamentally tied to the quantum coherence of the emitting particle},
author = {Karnieli, Aviv and Rivera, Nicholas and Arie, Ady and Kaminer, Ido},
abstractNote = {Coherent emission of light by free charged particles is believed to be successfully captured by classical electromagnetism in all experimental settings. However, recent advances triggered fundamental questions regarding the role of the particle wave function in these processes. Here, we find that even in seemingly classical experimental regimes, light emission is fundamentally tied to the quantum coherence and correlations of the emitting particle. We use quantum electrodynamics to show how the particle’s momentum uncertainty determines the optical coherence of the emitted light. We find that the temporal duration of Cherenkov radiation, envisioned for almost a century as a shock wave of light, is limited by underlying entanglement between the particle and light. Our findings enable new capabilities in electron microscopy for measuring quantum correlations of shaped electrons. Last, we propose new Cherenkov detection schemes, whereby measuring spectral photon autocorrelations can unveil the wave function structure of any charged high-energy particle.},
doi = {10.1126/sciadv.abf8096},
journal = {Science Advances},
number = 18,
volume = 7,
place = {United States},
year = {Fri Apr 30 00:00:00 EDT 2021},
month = {Fri Apr 30 00:00:00 EDT 2021}
}
https://doi.org/10.1126/sciadv.abf8096
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