A squeezed-state approach for the spin polaron in the t-J model


Bilge S. , Altanhan T.

JOURNAL OF PHYSICS-CONDENSED MATTER, cilt.12, ss.1837-1843, 2000 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 12 Konu: 8
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1088/0953-8984/12/8/326
  • Dergi Adı: JOURNAL OF PHYSICS-CONDENSED MATTER
  • Sayfa Sayıları: ss.1837-1843

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.