%Definitions of static variables declared in global_declarations.m



global	id2 = eye(2);

global	ze2 = zeros(2);



global	sigx=[0,1;1,0];



global	sigy=[0,-i;i,0];



global	sigz=[1,0;0,-1];



global	sig1x=kron(id2,sigx);

global	sig1y=kron(id2,sigy);

global	sig1z=kron(id2,sigz);



global	sigx1=kron(sigx,id2);

global	sigy1=kron(sigy,id2);

global	sigz1=kron(sigz,id2);



global	sigxx = kron(sigx,sigx);

global	sigxy = kron(sigx,sigy);

global	sigxz = kron(sigx,sigz);



global	sigyx = kron(sigy,sigx);

global	sigyy = kron(sigy,sigy);

global	sigyz = kron(sigy,sigz);



global	sigzx = kron(sigz,sigx);

global	sigzy = kron(sigz,sigy);

global	sigzz = kron(sigz,sigz);



global	uni2ort = [1,0, 0, i;

0,i, 1, 0;

0,i,-1, 0;

1,0, 0,-i]/sqrt(2);



global  ex_op = [1,0,0,0;

0,0,1,0;

0,1,0,0;

0,0,0,1];