Dear Synge,

no I don't have magnetic field in z direction, but looper results always gives a finite Magnetization in the z direction.

also I noticed that if we define the model like this
H=-J \sum_{i,j}S^{x}_{i}S^{x}_{j}-h \sum_{i}S^{z}_{i}
the looper doesn't work, I don't know why?

Thanks,
Zhian.

Message: 3
Date: Wed, 27 Jul 2011 10:04:54 +0900
From: Synge Todo <wistaria@comp-phys.org>
Subject: Re: [ALPS-users] Quantum Monte Carlo for Ising in transverse
       field
To: comp-phys-alps-users@lists.phys.ethz.ch
Message-ID: <17A32C75-B3B0-41ED-9F58-0304E71B8A3F@comp-phys.org>
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On 2011/07/27, at 1:42, zhian asadzadeh wrote:
> @Synge
> I took it from Magnetization density, I think also Magnetization in z direction is not zero,
> ok, thanks I will try that.

Strange.   Do you have a finite magnetic field along the z-axis, too?

Synge