Extremal Magic States from Symmetric Lattices

Fuente: arXiv
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Auteurs principaux: Ohta, Misaki, Sakurai, Kazuki
Format: Preprint
Publié: 2025
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author Ohta, Misaki
Sakurai, Kazuki
author_facet Ohta, Misaki
Sakurai, Kazuki
contents Magic, a key quantum resource beyond entanglement, remains poorly understood in terms of its structure and classification. In this paper, we demonstrate a striking connection between high-dimensional symmetric lattices and quantum magic states. By mapping vectors from the $E_8$, $BW_{16}$, and $E_6$ lattices into Hilbert space, we construct and classify stabiliser and maximal magic states for two-qubit, three-qubit and one-qutrit systems. In particular, this geometric approach allows us to construct, for the first time, closed-form expressions for the maximal magic states in the three-qubit and one-qutrit systems, and to conjecture their total counts. In the three-qubit case, we further classify the extremal magic states according to their entanglement structure. We also examine the distinctive behaviour of one-qutrit maximal magic states with respect to Clifford orbits. Our findings suggest that deep algebraic and geometric symmetries underlie the structure of extremal magic states.
format Preprint
id arxiv_https___arxiv_org_abs_2506_11725
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Extremal Magic States from Symmetric Lattices
Ohta, Misaki
Sakurai, Kazuki
Quantum Physics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Mathematical Physics
Magic, a key quantum resource beyond entanglement, remains poorly understood in terms of its structure and classification. In this paper, we demonstrate a striking connection between high-dimensional symmetric lattices and quantum magic states. By mapping vectors from the $E_8$, $BW_{16}$, and $E_6$ lattices into Hilbert space, we construct and classify stabiliser and maximal magic states for two-qubit, three-qubit and one-qutrit systems. In particular, this geometric approach allows us to construct, for the first time, closed-form expressions for the maximal magic states in the three-qubit and one-qutrit systems, and to conjecture their total counts. In the three-qubit case, we further classify the extremal magic states according to their entanglement structure. We also examine the distinctive behaviour of one-qutrit maximal magic states with respect to Clifford orbits. Our findings suggest that deep algebraic and geometric symmetries underlie the structure of extremal magic states.
title Extremal Magic States from Symmetric Lattices
topic Quantum Physics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Mathematical Physics
url https://arxiv.org/abs/2506.11725