A squeezed-state approach for the spin polaron in the t-J model
JOURNAL OF PHYSICS-CONDENSED MATTER, cilt.12, sa.8, ss.1837-1843, 2000 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 12 Sayı: 8
- Basım Tarihi: 2000
- Doi Numarası: 10.1088/0953-8984/12/8/326
- Dergi Adı: JOURNAL OF PHYSICS-CONDENSED MATTER
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1837-1843
- Gazi Üniversitesi Adresli: Hayır
Özet
The ground-state energy of spin polarons is investigated by means of squeezed states. The analytical theory developed by Barentzen for the intermediate-coupling region in the t-J model is improved by a procedure of diagonalization of quadratic terms in the effective Hamiltonian through a squeezing transformation.