English

Generating W states with braiding operators

Quantum Physics 2020-11-18 v2 High Energy Physics - Theory Mathematical Physics math.MP Exactly Solvable and Integrable Systems

Abstract

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 Wn_n state in a (2n1)(2n-1)-qubit space.

Keywords

Cite

@article{arxiv.2007.05660,
  title  = {Generating W states with braiding operators},
  author = {Pramod Padmanabhan and Fumihiko Sugino and Diego Trancanelli},
  journal= {arXiv preprint arXiv:2007.05660},
  year   = {2020}
}

Comments

13 pages, Published version

R2 v1 2026-06-23T17:02:10.958Z