Details
| Original language | English |
|---|---|
| Pages (from-to) | 660-663 |
| Number of pages | 4 |
| Journal | Canadian journal of physics |
| Volume | 98 |
| Issue number | 7 |
| Early online date | 26 Sept 2019 |
| Publication status | Published - Jul 2020 |
| Externally published | Yes |
Abstract
A quantum electrodynamical theory of Cherenkov radiation emitted by spin-polarized electrons moving in an isotropic medium is developed within the density matrix framework. Special attention is paid to the polarization properties of the emitted photons described by means of Stokes parameters. It is demonstrated that, although the Cherenkov radiation is primarily linearly polarized in the plane containing the direction of observation and the path of the electrons, the photons may have a small component of circular polarization of the order of 3 × 10−6 for electron kinetic energy of 500 keV due to the initial electron spin polarization, whose existence can be confirmed by sensitive measurements in the future.
Keywords
- Cherenkov radiation, Photon polarization, Polarized beam diagnostics, Quantum electrodynamics, Spin polarization
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Canadian journal of physics, Vol. 98, No. 7, 07.2020, p. 660-663.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spin-polarization effects in cherenkov radiation from electrons
AU - Peshkov, A. A.
N1 - Funding information: The author is indebted to S.N. Galyamin for fruitful discussions. This research was funded by the Deutsche Forschungsgemein-schaft (DFG, German Research Foundation) under Germany’s Excellence Strategy — EXC-2123 QuantumFrontiers — 390837967.
PY - 2020/7
Y1 - 2020/7
N2 - A quantum electrodynamical theory of Cherenkov radiation emitted by spin-polarized electrons moving in an isotropic medium is developed within the density matrix framework. Special attention is paid to the polarization properties of the emitted photons described by means of Stokes parameters. It is demonstrated that, although the Cherenkov radiation is primarily linearly polarized in the plane containing the direction of observation and the path of the electrons, the photons may have a small component of circular polarization of the order of 3 × 10−6 for electron kinetic energy of 500 keV due to the initial electron spin polarization, whose existence can be confirmed by sensitive measurements in the future.
AB - A quantum electrodynamical theory of Cherenkov radiation emitted by spin-polarized electrons moving in an isotropic medium is developed within the density matrix framework. Special attention is paid to the polarization properties of the emitted photons described by means of Stokes parameters. It is demonstrated that, although the Cherenkov radiation is primarily linearly polarized in the plane containing the direction of observation and the path of the electrons, the photons may have a small component of circular polarization of the order of 3 × 10−6 for electron kinetic energy of 500 keV due to the initial electron spin polarization, whose existence can be confirmed by sensitive measurements in the future.
KW - Cherenkov radiation
KW - Photon polarization
KW - Polarized beam diagnostics
KW - Quantum electrodynamics
KW - Spin polarization
UR - http://www.scopus.com/inward/record.url?scp=85087334460&partnerID=8YFLogxK
U2 - 10.1139/cjp-2019-0441
DO - 10.1139/cjp-2019-0441
M3 - Article
AN - SCOPUS:85087334460
VL - 98
SP - 660
EP - 663
JO - Canadian journal of physics
JF - Canadian journal of physics
SN - 0008-4204
IS - 7
ER -