Generation of vortex particles via generalized measurements

Generation of vortex particles via generalized measurements Full article

Journal

European Physical Journal C
ISSN: 1434-6044 , E-ISSN: 1434-6052

Output data

Year: 2022, Volume: 82, Number: 11, Article number : 1008, Pages count : DOI: 10.1140/epjc/s10052-022-10991-w

Authors

Karlovets D.V. ¹ , Baturin S.S. ¹ , Geloni G. ² , Sizykh G.K. ¹ , Serbo V.G. ^1,3,4

Affiliations

1	School of Physics and Engineering, ITMO University, 197101 St., Petersburg, Russian Federation
2	European XFEL, Holzkoppel 4, Schenefeld, 22869, Germany
3	Novosibirsk State University, Novosibirsk, 630090, Russian Federation
4	Sobolev Institute of Mathematics, Novosibirsk, 630090, Russian Federation

Funding (2)

1	Russian Science Foundation	21-42-04412
2	Министерство науки и высшего образования РФ	075-15-2021-1349

The hard X-ray twisted photons and relativistic massive particles with orbital angular momentum – vortex electrons, muons, protons, etc. – have many potential applications in high-energy and nuclear physics. However, such states can be obtained so far mainly via diffraction techniques, not applicable for relativistic energies. Here we show that the vortex states of different particles, including hadrons, ions, and nuclei, can be generated in a large class of processes with two final particles simply by altering a postselection protocol. Thanks to entanglement and to the uncertainty relations, an evolved state of a final particle becomes twisted if the momentum azimuthal angle of the other particle is measured with a large uncertainty. We give several examples, including Cherenkov and undulator radiation, particle collisions with intense laser beams, eμ→ eμ, ep→ ep. This technique can be adapted for ultrarelativistic lepton and hadron beams of linear colliders, and it can also facilitate the development of sources of X-ray and γ-range twisted photons at storage rings and free-electron lasers. © 2022, The Author(s).

Karlovets D.V. , Baturin S.S. , Geloni G. , Sizykh G.K. , Serbo V.G.
Generation of vortex particles via generalized measurements
European Physical Journal C. 2022. V.82. N11. 1008 . DOI: 10.1140/epjc/s10052-022-10991-w WOS Scopus РИНЦ OpenAlex

Submitted:	Aug 25, 2022
Accepted:	Nov 1, 2022
Published print:	Nov 9, 2022
Published online:	Nov 9, 2022

≡ Web of science:	WOS:000885083000003
≡ Scopus:	2-s2.0-85141604890
≡ Elibrary:	51733939
≡ OpenAlex:	W4308663081