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We want to calculate the derivatives of the Kinetic Energy respect to a variational parameter of the wavefunction:

(B.4) 
using B.3 we have that:
and

(B.6) 
For the pairing determinant the terms we have to evaluate will be:
So to evaluate the gradient of the local energy we need only to know these vectors:

(B.7) 
Next: Pairing determinant
Up: Kinetic Energy
Previous: Kinetic Energy
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Claudio Attaccalite
20051107