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

Bilge, SEMA; Altanhan, T

doi:10.1088/0953-8984/12/8/326

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

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Bilge S., Altanhan T.

JOURNAL OF PHYSICS-CONDENSED MATTER, vol.12, no.8, pp.1837-1843, 2000 (SCI-Expanded)

Publication Type: Article / Article
Volume: 12 Issue: 8
Publication Date: 2000
Doi Number: 10.1088/0953-8984/12/8/326
Journal Name: JOURNAL OF PHYSICS-CONDENSED MATTER
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.1837-1843
Gazi University Affiliated: No

Abstract

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.