QED with heavy ions: On the way from strong to supercritical fields

Standard

QED with heavy ions: On the way from strong to supercritical fields. / Shabaev, V. M.; Bondarev, A. I.; Glazov, D. A.; Kozhedub, Y. S.; Maltsev, I. A.; Malyshev, A. V.; Popov, R. V.; Tumakov, D. A.; Tupitsyn, I. I.

In: Proceedings of Science, Vol. 353, 052, 18.02.2020.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{6c5b53b4e7d34beb87cd53c8b755714c,

title = "QED with heavy ions: On the way from strong to supercritical fields",

abstract = "The current status of tests of quantum electrodynamics with heavy ions is reviewed. The theoretical predictions for the Lamb shift and the hyperfine splitting in heavy ions are compared with available experimental data. Recent achievements and future prospects in studies of the g factor with highly charged ions are also reported. These studies can provide precise determination of the fundamental constants and tests of QED within and beyond the Furry picture at the strong-coupling regime. Theoretical calculations of the electron-positron pair creation probabilities in low-energy heavy-ion collisions are also considered. Special attention is paid to tests of QED in supercritical-field regime, which can be accessed in slow collisions of two bare nuclei with the total charge number larger than the critical value, Zcrit ≈ 173. In the supercritical field, the initially neutral vacuum can spontaneously decay into the charged vacuum and two positrons. It is demonstrated that this fundamental phenomenon can be observed via impact-sensitive measurements of the pair-production probabilities.",

keywords = "Electron-positron pair creation, Fundamental constants, Hyperfine splittings, Precise determinations, quantum electrodynamics, Sensitive measurement, Strong-coupling regime, Theoretical calculations",

author = "Shabaev, {V. M.} and Bondarev, {A. I.} and Glazov, {D. A.} and Kozhedub, {Y. S.} and Maltsev, {I. A.} and Malyshev, {A. V.} and Popov, {R. V.} and Tumakov, {D. A.} and Tupitsyn, {I. I.}",

year = "2020",

month = feb,

day = "18",

language = "English",

volume = "353",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "2019 International Conference on Precision Physics and Fundamental Physical Constants, FFK 2019, FFK-2019 ; Conference date: 09-06-2019 Through 14-06-2019",

}

RIS

TY - JOUR

T1 - QED with heavy ions: On the way from strong to supercritical fields

AU - Shabaev, V. M.

AU - Bondarev, A. I.

AU - Glazov, D. A.

AU - Kozhedub, Y. S.

AU - Maltsev, I. A.

AU - Malyshev, A. V.

AU - Popov, R. V.

AU - Tumakov, D. A.

AU - Tupitsyn, I. I.

PY - 2020/2/18

Y1 - 2020/2/18

N2 - The current status of tests of quantum electrodynamics with heavy ions is reviewed. The theoretical predictions for the Lamb shift and the hyperfine splitting in heavy ions are compared with available experimental data. Recent achievements and future prospects in studies of the g factor with highly charged ions are also reported. These studies can provide precise determination of the fundamental constants and tests of QED within and beyond the Furry picture at the strong-coupling regime. Theoretical calculations of the electron-positron pair creation probabilities in low-energy heavy-ion collisions are also considered. Special attention is paid to tests of QED in supercritical-field regime, which can be accessed in slow collisions of two bare nuclei with the total charge number larger than the critical value, Zcrit ≈ 173. In the supercritical field, the initially neutral vacuum can spontaneously decay into the charged vacuum and two positrons. It is demonstrated that this fundamental phenomenon can be observed via impact-sensitive measurements of the pair-production probabilities.

AB - The current status of tests of quantum electrodynamics with heavy ions is reviewed. The theoretical predictions for the Lamb shift and the hyperfine splitting in heavy ions are compared with available experimental data. Recent achievements and future prospects in studies of the g factor with highly charged ions are also reported. These studies can provide precise determination of the fundamental constants and tests of QED within and beyond the Furry picture at the strong-coupling regime. Theoretical calculations of the electron-positron pair creation probabilities in low-energy heavy-ion collisions are also considered. Special attention is paid to tests of QED in supercritical-field regime, which can be accessed in slow collisions of two bare nuclei with the total charge number larger than the critical value, Zcrit ≈ 173. In the supercritical field, the initially neutral vacuum can spontaneously decay into the charged vacuum and two positrons. It is demonstrated that this fundamental phenomenon can be observed via impact-sensitive measurements of the pair-production probabilities.

KW - Electron-positron pair creation

KW - Fundamental constants

KW - Hyperfine splittings

KW - Precise determinations

KW - quantum electrodynamics

KW - Sensitive measurement

KW - Strong-coupling regime

KW - Theoretical calculations

UR - http://www.scopus.com/inward/record.url?scp=85081117050&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85081117050

VL - 353

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

M1 - 052

T2 - 2019 International Conference on Precision Physics and Fundamental Physical Constants, FFK 2019

Y2 - 9 June 2019 through 14 June 2019

ER -

ID: 52336670