Ground state properties of the periodic Anderson model with electron–phonon interactions
نویسندگان
چکیده
The periodic Anderson model (PAM) is a fundamental describing heavy fermion systems’ behavior. In this paper, we investigate the PAM in presence of electron–phonon interactions. By utilizing novel analytical methodology based on operator inequalities, demonstrate that ground state at half-filling unique and spin–singlet state. Additionally, establish exhibits short-range antiferromagnetism.
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ژورنال
عنوان ژورنال: Annals of Physics
سال: 2023
ISSN: ['1096-035X', '0003-4916']
DOI: https://doi.org/10.1016/j.aop.2023.169381