Breaking BEC

Journal of High Energy Physics

A. Kovtun¹  M. Zantedeschi¹ 

[1] Max-Planck-Institut für Physik, Föhringer Ring 6, D-80805, München, Germany;Arnold Sommerfeld Center, Ludwig-Maximilians-Universität, Theresienstraße 37, 80333, München, Germany;

关键词: Nonperturbative Effects;    Global Symmetries;    Field Theories in Lower Dimensions;   

DOI  :  10.1007/JHEP07(2020)212

来源: Springer

【 摘 要 】

In this work quantum corrections to the classical evolution of a relativistic scalar condensate are studied. The problem is approached by means of two different perturbative approaches: the 2-particle-irreducible (2PI) effective action and the expansion in the self-coupling. In the weak coupling regime the decoherence of the classical state is observed. The corresponding timescale is identified with the quantum break-time.

【 授权许可】

Unknown