Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Debierre, V."'
Autor:
Debierre, V., Lassalle, E.
Fermi's golden rule describes the decay dynamics of unstable quantum systems coupled to a reservoir, and predicts a linear decay in time. Although it arises at relatively short times, the Fermi regime does not take hold in the earliest stages of the
Externí odkaz:
http://arxiv.org/abs/2008.12565
Autor:
Debierre, V., Sikora, B., Cakir, H., Oreshkina, N. S., Yerokhin, V. A., Keitel, C. H., Harman, Z.
Publikováno v:
Phys. Rev. A 103, 030802 (2021)
A critical set of two-loop QED corrections to the $g$ factor of hydrogenlike ions is calculated without expansion in the nuclear binding field. These corrections are due to the polarization of the external magnetic field by the quantum vacuum, which
Externí odkaz:
http://arxiv.org/abs/2007.12244
Autor:
Cakir, H., Oreshkina, N. S., Valuev, I. A., Debierre, V., Yerokhin, V. A., Keitel, C. H., Harman, Z.
A means to extract the fine-structure constant $\alpha$ from precision spectroscopic data on one-electron ions is presented. We show that in an appropriately weighted difference of the bound-electron $g$ factor and the ground state energy, nuclear st
Externí odkaz:
http://arxiv.org/abs/2006.14261
The use of high-precision measurements of the $g$ factor of few-electron ions and its isotope shifts is put forward as a probe for physics beyond the Standard Model. The contribution of a hypothetical fifth fundamental force to the $g$ factor is calc
Externí odkaz:
http://arxiv.org/abs/1901.06959
Autor:
Sikora, B., Cakir, H., Michel, N., Debierre, V., Oreshkina, N. S., Belov, N. A., Yerokhin, V. A., Keitel, C. H., Harman, Z.
Publikováno v:
Phys. Rev. D 97, 111301 (2018)
A theoretical description of the $g$ factor of a muon bound in a nuclear potential is presented. One-loop self-energy and multi-loop vacuum polarization corrections are calculated, taking into account the interaction with the binding potential exactl
Externí odkaz:
http://arxiv.org/abs/1801.02501
Publikováno v:
Phys.Rev.A 96 (2017) 032702
The long-range interaction of excited neutral atoms has a number of interesting and surprising properties, such as the prevalence of long-range, oscillatory tails, and the emergence of numerically large can der Waals C_6 coefficients. Furthermore, th
Externí odkaz:
http://arxiv.org/abs/1709.07713
Autor:
Debierre, V., Harman, Z.
Publikováno v:
Phys. Rev. A 96, 043835 (2017)
The Mollow spectrum for the light scattered by a driven two-level atom is derived in the resolvent operator formalism. The derivation is based on the construction of a master equation from the resolvent operator of the atom-field system. We show that
Externí odkaz:
http://arxiv.org/abs/1709.00347
Autor:
Jentschura, U. D., Debierre, V.
Publikováno v:
Phys.Rev.A 95 (2017) 042506
A quantum electrodynamic calculation of the interaction of an excited-state atom with a ground-state atom is performed. For an excited reference state and a lower-lying virtual state, the contribution to the interaction energy naturally splits into a
Externí odkaz:
http://arxiv.org/abs/1705.06321
Publikováno v:
Phys.Rev.Lett. 118 (2017) 123001
We report on a quantum electrodynamic (QED) investigation of the interaction between a ground state atom with another atom in an excited state. General expressions, applicable to any atom, are indicated for the long-range tails which are due to virtu
Externí odkaz:
http://arxiv.org/abs/1704.08151
Publikováno v:
Phys.Rev.A 95 (2017) 022704
The interaction of two excited hydrogen atoms in metastable states constitutes a theoretically interesting problem because of the quasi-degenerate 2P_{1/2} levels which are removed from the 2S states only by the Lamb shift. The total Hamiltonian of t
Externí odkaz:
http://arxiv.org/abs/1701.08813