Lefschetz thimbles and quantum phases in zero-dimensional bosonic models

Abstract In this paper, by analyzing the underlyingLefschetz-thimble structure, we investigate quantum phases (or quantum critical points) in zero-dimensional scalar field theories with complex actions. Using first principles, we derive the thimble equations of these models for various values of the...

Full description

Bibliographic Details
Main Authors: R. Bharathkumar, Anosh Joseph
Format: Article
Language:English
Published: SpringerOpen 2020-10-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-020-08493-8