Calculates

This is the probability of drawing two particles from a given determinant regardless of order.

Note that the unordered probability is given by the ordered probability as: In addition we have so we have to actually calculate the probability of drawing two given particles in different order.

Type | Intent | Optional | Attributes | Name | ||
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class(PC_FastWeightedParticles_t), | intent(in) | :: | this |
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integer, | intent(in) | :: | nI(nEl) |
The determinant in nI-format and the supergroup index |
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integer, | intent(in) | :: | i_sg |
The determinant in nI-format and the supergroup index |
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integer, | intent(in) | :: | I |
The particles. |
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integer, | intent(in) | :: | J |
The particles. |