Generating W states with braiding operators
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Braiding operators can be used to create entangled states out of product states, thus establishing a correspondence between topological and quantum entanglement. This is well-known for maximally entangled Bell and GHZ states and their equivalent states under Stochastic Local Operations and Classical Communication, but so far a similar result for W states was missing. Here we use generators of extraspecial 2-groups to obtain the W state in a four-qubit space and partition algebras to generate the W state in a three-qubit space. We also present a unitary generalized Yang-Baxter operator that embeds the W$_n$ state in a $(2n-1)$-qubit space.
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Cited by 2 Pith papers
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Hidden Ising models from the generalized Yang-Baxter equation
Introduces a local multi-site spin-1/2 Hamiltonian that is free-fermionic with degeneracy from local conserved quantities, derived from a multi-site generalization of the Yang-Baxter equation using extraspecial 2-groups.
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Symmetries of the Generalized Yang--Baxter Equations
Symmetries of generalized multi-site Yang-Baxter equations depend on site count and frequently outnumber those of the standard equation, heavily constraining inequivalent integrable models.
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