Fixed wrong 1mr+ update.

[phys/heatbath.git] / sim-1mr+.hpp

diff --git a/sim-1mr+.hpp b/sim-1mr+.hpp
index 2b141498f03d8e29e610f0939f6536da3ba1ea57..e46a9ea89066ab6982510fc60ef679078b168586 100644 (file)
--- a/sim-1mr+.hpp
+++ b/sim-1mr+.hpp
@@ -47,18 +47,18 @@ void sim::updatePhi (const int& x)
 
   for (int nu=0; nu<4; nu++)
     V += conf[ (*nb)[x*4+nu] ].phi;
-
+  
   const double V2diff = pow(real(V), 2) - pow(imag(V), 2);
   const double Vprod = real(V)*imag(V);
   conf[x].phi = complex<double> ( + real(conf[x].phi) * V2diff + 2 * imag(conf[x].phi) * Vprod,
                                  - imag(conf[x].phi) * V2diff + 2 * real(conf[x].phi) * Vprod ) / norm(V);
-  
+
   const double r = exp( - M * norm(conf[x].phi)
                        - 1./M * norm(V)
                        + 2 * real( conf[x].phi * conj(V) ) );
   
   conf[x].phi = sqrt(std::log( 1./(1-r) )) / sqrt(M)
-    * polar( 1.0, arg(conf[x].phi) )
+    * polar( 1.0, gsl_rng_uniform(rangsl) * 2*M_PI )
     + V / M;
 }