Year: 2019
Type: article
Abstract: The ground state of finite systems that exhibit spontaneous symmetry breaking is typically still symmetric and unique. This paper shows that this symmetric ground state can be constructed by taking a suitable superposition of all symmetry broken states. This is explicitly shown for the ground state of the Lieb-Mattis model, which is a superposition of all possible antiferromagnetic states.
Source: Physical Review Research
Author: Louk Rademaker
Institution: University of Geneva
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
OpenAlex ID: W2973681499