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Open Quantum Systems Decoherence
Quantum Simulation
Topological Quantum Computing
Topological invariants for SPT entanglers
arXiv
Authors: Carolyn Zhang
Year
2022
Paper ID
58655
Status
Preprint
Abstract Read
~2 min
Abstract Words
84
Citations
N/A
Abstract
We develop a framework for classifying locality preserving unitaries (LPUs) with internal, unitary symmetries in d dimensions, based on (d-1) dimensional "flux insertion operators" which are easily computed from the unitary. Using this framework, we obtain formulas for topological invariants of LPUs that prepare, or entangle, symmetry protected topological phases (SPTs). These formulas serve as edge invariants for Floquet topological phases in (d+1) dimensions that "pump" d-dimensional SPTs. For 1D SPT entanglers and certain higher dimensional SPT entanglers, our formulas are completely closed-form.
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- We develop a framework for classifying locality preserving unitaries (LPUs) with internal, unitary symmetries in d dimensions, based on (d-1) dimensional "flux insertion...
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