Atıf İçin Kopyala
Kaya T.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, cilt.24, ss.5457-5468, 2010 (SCI İndekslerine Giren Dergi)
-
Cilt numarası:
24
Konu:
27
-
Basım Tarihi:
2010
-
Doi Numarası:
10.1142/s0217979210056736
-
Dergi Adı:
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
-
Sayfa Sayısı:
ss.5457-5468
Özet
In this work we present a semi-classical transfer matrix method to study one-dimensional modified quantum transverse-field Ising model. Both average magnetization per spin along the z-direction and along the x-direction are calculated in this picture. It is predicted that the t > 1 case is the corresponding effective ferromagnetic phase ( = 1) at sufficiently high H-z whereas t < 1 case is an effective paramagnetic phase ( = 0). Consequently, it is concluded that t = H-z/K = 1, here H-z is the transverse field along the z-axis and K is the coupling strength, which corresponds to quantum ferromagnetic-paramagnetic phase transition. In other words, the same result of the sophisticated quantum field theoretical calculation is predicted unexpectedly in the naive semiclassical picture.