2 papers
quant-ph2024
Positive bias makes tensor-network contraction tractable
Jiaqing Jiang, Jielun Chen, Norbert Schuch +1
Tensor network contraction is a powerful computational tool in quantum many-body physics, quantum information and quantum chemistry. The complexity of contracting a tensor network…
cond-mat.str-el2024
Fractional domain wall statistics in spin chains with anomalous symmetries
Jose Garre Rubio, Norbert Schuch
We study the statistics of domain wall excitations in quantum spin chains. We focus on systems with finite symmetry groups represented by matrix product unitaries (MPUs), i.e. fini…