English

Asymmetric cloning in quantum information theory

Quantum Physics 2023-10-02 v1

Abstract

This thesis investigates quantum cloning and related quantum entanglement problems using core concepts of representation theory, in particular those associated with the symmetric group. The research explores Schur-Weyl duality and its extensions, which allow efficient representation and manipulation of quantum systems, serving as a valuable tool for quantum information theory. A primary application of Schur-Weyl duality is the quantum cloning problem, which is studied for both the 121 \to 2 and the more general 1N1 \to N cases, providing new insights into the constraints imposed by the no-cloning theorem. The investigation extends to a more general quantum entanglement problem on a complete graph.

Keywords

Cite

@article{arxiv.2309.17229,
  title  = {Asymmetric cloning in quantum information theory},
  author = {Denis Rochette},
  journal= {arXiv preprint arXiv:2309.17229},
  year   = {2023}
}
R2 v1 2026-06-28T12:36:05.165Z