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Degeneracy of the ground states at half-filling and the existence of the η-pairing off-diagonal long-range order in the negative-U Hubbard models

✍ Scribed by Guang-Shan Tian

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📜 SIMILAR VOLUMES

Off-diagonal long-range order, η-pairing

✍ Lawrence J. Dunne; John N. Murrell; Erkki J. Brändas 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 210 KB 👁 1 views

It is argued that Yang's -paired wave function is the electronic ground state of high T cuprate superconductors.