2000 character limit reached
Local Jordan-Wigner transformations on the torus
Published 11 Apr 2024 in quant-ph, cond-mat.str-el, math-ph, and math.MP | (2404.07727v1)
Abstract: We present a locality preserving unitary mapping from fermions to qubits on a 2D torus whilst accounting for the mapping of topological sectors. Extending the work of Shukla et al. [Phys. Rev. B 101, 155105], an explicit intertwiner is constructed in the form of a projected entangled pair operator. By encoding the information about the charge sectors (and if applicable the twisted boundary conditions) in ancillary qubit(s), the intertwiner becomes a unitary operator which exchanges boundary conditions and charge sectors.
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