ut3_squash_tails

t3toolbox.backend.ut3_operations.ut3_squash_tails(data)

def ut3_squash_tails(data: UT3Data) -> UT3Data:

Sum the leading/trailing TT bonds down to rank 1 (preserves the tensor), updating those edge masks to rank 1. Operates on the full .data tuple.

Parameters:

data (UT3Data)

Return type:

UT3Data