entanglement.h

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00001 /*
00002  * Functions for calculating quantifying entanglement. 
00003  * 
00004  * 
00005  * Robert Johansson <robert@riken.jp>
00006  *
00007  * $Id: entanglement_8h-source.html,v 1.1.1.1 2008-09-03 09:36:41 rob Exp $
00008  */
00009 
00010 #ifndef ENTANGLEMENT_H
00011 #define ENTANGLEMENT_H
00012 
00013 #include <gsl/gsl_matrix.h>
00014 
00015 #include "quantum_system.h"
00016 #include "density_matrix.h"
00017 
00018 double entanglement_concurrence(quantum_system *qs, gsl_matrix_complex *rho);
00019 double entanglement_log_neg(gsl_matrix_complex *rho);
00020 double entanglement_neumann_entropy(gsl_matrix_complex *rho);
00021         
00022 
00023 #endif
00024 

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