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Format of the Input:
Each spin glass sample consists of
- parameters determining the spin glass model.
- the specific sample.
The input of the parameters
Parameters have to be specified in the way <PARAMETER> : <VALUE>.
Available are:
- type
- size
- name
- type: You can choose between
- pm: two dimensional Edwards Anderson (EA) spin glass with
+/-1 distribution and periodic boundary conditions.
- gauss: two dimensional EA spin
glass with arbitrary continuous
distributions and periodic boundary
conditions.
Please use the fixed point format (e.g., 0.9876 is right,
while 9.876e-01 is wrong.)
- pm3: three dimensional Edwards
Anderson spin glass with +/-1 distribution and periodic boundary conditions.
- gauss3: three dimensional Edwards
Anderson spin glass with arbitrary continuous distribution and periodic boundary conditions.
- sk: Sherrington-Kirkpatrick
spin-glass model with arbitrary
distribution for the couplings. This model
is computed by an exact
branch-and-bound code using semidefinite
programming. It has been provided to
us by Franz
Rendl (Alpen-Adria
Universitaet, Klagenfurt),
Giovanni Rinaldi (IASI-CNR,
Rome), and
Angelika Wiegele (Alpen-Adria
Universitaet, Klagenfurt), see also http://biqmac.uni-klu.ac.at
- size determines the linear size of the grid, i.e. size
= L for an LxLxL grid. In case of the sk model it is the total number of spins.
- name of the sample. The value can be any line of
characters (including blanks). Please don't use ' " `.
These three lines can appear in any order. Blank lines anywhere
in the mail are ignored by the mail reading script. You can include comment
lines into your mail. These comment lines have to start with #
The input of the spin glass sample
Please note for the grid types:
We number the spins linearly for each grid layer. As an example, a two-dimensional
spin glass of size 3 looks like this:
| | | -(1)---(2)---(3)-- | | | -(4)---(5)---(6)-- | | | -(7)---(8)---(9)-- | | |
For the sk model, the order of the spins is arbitrary.
The format for the couplings is:
<SPIN_i> <SPIN_j> <COUPLING>
The first two integers determines two spins interacting via a coupling
of strength <COUPLING>. The numbers are separated by an arbitrary
number of blanks (or tabs). The order of the couplings is arbitrary.
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