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Some connections between ground states and temperature states of thermodynamical systems

✍ Scribed by M. Sirugue; D. Testard


Book ID
105387555
Publisher
Springer
Year
1971
Tongue
English
Weight
730 KB
Volume
22
Category
Article
ISSN
0010-3616

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Ground-state degeneracy and low-temperat
✍ A. Honecker; O. Derzhko; J. Richter πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 318 KB

Highly frustrated lattices yield a completely flat lowest single-electron band. Remarkably, exact manybody ground states can be constructed for the repulsive Hubbard model and the t2J model by filling this flat band with localized electron states. This construction leads to a macroscopic ground-stat