# Qxy

The xy component of $Q$ is defined as: $$Q_{xy} = 3xy/r^2.$$ The equivalent operator in Quanty is created by:

Example.Quanty
OppQxy = NewOperator("Qxy", NF, IndexUp, IndexDn)

The operator could also be defined by:

Example.Quanty
Akm={{2,-2,sqrt(1.5)*I},{2, 2,-sqrt(1.5)*I}}
OppQxy=NewOperator("CF",NF,indexup,indexdn,Akm)