Lattice surgery is reformulated as colimits in chain complexes and Hopf algebra (co)multiplication, enabling automated low-overhead logical measurements on quantum LDPC codes and an algebraic theory of boundaries in quantum double models.
We now relate the above cell complexes to chain complexes by way of functors
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Homology, Hopf Algebras and Quantum Code Surgery
Lattice surgery is reformulated as colimits in chain complexes and Hopf algebra (co)multiplication, enabling automated low-overhead logical measurements on quantum LDPC codes and an algebraic theory of boundaries in quantum double models.