Multi-qutrit exact synthesis

Fuente: arXiv
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Autori principali: Kalra, Amolak Ratan, Saikia, Manimugdha, Valluri, Dinesh, Winnick, Sam, Yard, Jon
Natura: Preprint
Pubblicazione: 2024
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author Kalra, Amolak Ratan
Saikia, Manimugdha
Valluri, Dinesh
Winnick, Sam
Yard, Jon
author_facet Kalra, Amolak Ratan
Saikia, Manimugdha
Valluri, Dinesh
Winnick, Sam
Yard, Jon
contents We present an exact synthesis algorithm for qutrit unitaries in $\mathcal{U}_{3^n}(\mathbb{Z}[1/3,e^{2πi/3}])$ over the Clifford$+T$ gate set with at most one ancilla. This extends the already known result of qutrit metaplectic gates being a subset of Clifford$+T$ gate set with one ancilla. As an intermediary step, we construct an algorithm to convert 3-level unitaries into multiply-controlled gates, analogous to Gray codes converting 2-level unitaries into multiply-controlled gates. Finally, using catalytic embeddings, we present an algorithm to exactly synthesize unitaries $\mathcal{U}_{3^n}(\mathbb{Z}[1/3,e^{2πi/9}])$ over the Clifford$+T$ gate set with at most 2 ancillas. This, in particular, gives an exact synthesis algorithm of single-qutrit Clifford$+\mathcal{D}$ over the multi-qutrit Clifford$+T$ gate set with at most two ancillas.
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id arxiv_https___arxiv_org_abs_2405_08147
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Multi-qutrit exact synthesis
Kalra, Amolak Ratan
Saikia, Manimugdha
Valluri, Dinesh
Winnick, Sam
Yard, Jon
Quantum Physics
We present an exact synthesis algorithm for qutrit unitaries in $\mathcal{U}_{3^n}(\mathbb{Z}[1/3,e^{2πi/3}])$ over the Clifford$+T$ gate set with at most one ancilla. This extends the already known result of qutrit metaplectic gates being a subset of Clifford$+T$ gate set with one ancilla. As an intermediary step, we construct an algorithm to convert 3-level unitaries into multiply-controlled gates, analogous to Gray codes converting 2-level unitaries into multiply-controlled gates. Finally, using catalytic embeddings, we present an algorithm to exactly synthesize unitaries $\mathcal{U}_{3^n}(\mathbb{Z}[1/3,e^{2πi/9}])$ over the Clifford$+T$ gate set with at most 2 ancillas. This, in particular, gives an exact synthesis algorithm of single-qutrit Clifford$+\mathcal{D}$ over the multi-qutrit Clifford$+T$ gate set with at most two ancillas.
title Multi-qutrit exact synthesis
topic Quantum Physics
url https://arxiv.org/abs/2405.08147