Work

Secularly growing loop corrections in scalar wave background

Year: 2020

Type: article

Abstract: We consider two-dimensional Yukawa theory in the scalar wave background ϕ(t − x). If one takes as initial state in such a background the scalar vacuum corresponding to ϕ = 0, then loop corrections to a certain part of the Keldysh propagator, corresponding to the anomalous expectation value, grow with time. That is a signal to the fact that under the kick of the ϕ(t − x) wave the scalar field rolls down the effective potential from the ϕ = 0 position to the proper ground state. We show the evidence supporting these observations.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep10(2020)027

Authors: E. T. Akhmedov, O. Diatlyk

Institutions: Moscow Institute of Physics and Technology, Institute for Theoretical and Experimental Physics, National Research University Higher School of Economics

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Russian Foundation for Basic Research, Foundation for the Advancement of Theoretical Physics and Mathematics

Awards: G3838844213, G4711892333, G7399323571