Stability of Charge Density Waves in Electron–Phonon Systems

With mathematical rigor, we demonstrate that electron–phonon interactions enhance the stability of charge density waves in low-temperature phases of many-electron systems. Our proof method involves an appropriate application of the Pirogov–Sinai theory to electron–phonon systems. Combining our findi...

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Bibliographic Details
Published in:Journal of statistical physics 2024-03, Vol.191 (3), Article 36
Main Author: Miyao, Tadahiro
Format: Article
Language:English
Subjects:
Mathematical and Computational Physics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Physics
Statistical Physics and Dynamical Systems
Theoretical
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Summary:With mathematical rigor, we demonstrate that electron–phonon interactions enhance the stability of charge density waves in low-temperature phases of many-electron systems. Our proof method involves an appropriate application of the Pirogov–Sinai theory to electron–phonon systems. Combining our findings with existing results, we obtain rigorous information regarding the low-temperature phase diagram for half-filled electron–phonon systems.
ISSN:1572-9613
1572-9613
DOI:10.1007/s10955-024-03250-7