Ginzburg–Landau approach to the Gross–Neveu model: success and failure
Year: 2024
Type: article
Abstract: The phase diagram of the Gross–Neveu model in 1+1 dimensions is studied using Ginzburg–Landau expansion. It predicts several features of the exact phase diagram correctly even at low orders. It is shown that increasing the order of the expansion improves the accuracy of the crystal phase except for very small temperatures, where the expansion completely fails regardless of the order of the expansion. The source of this behaviour seems to be related to the Silver-Blaze phenomenon.
Source: The European Physical Journal C
Authors: Lalita Choudhary, Anees Ahmed
Institution: Malaviya National Institute of Technology Jaipur
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4403177105