Constant-sized correlations are sufficient to self-test maximally entangled states with unbounded dimension

Honghao Fu

Joint Center for Quantum Information and Computer Science, Institute for Advanced Computer Studies and Department of Computer Science, University of Maryland, College Park, MD 20742, USA

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Abstract

Let $p$ be an odd prime and let $r$ be the smallest generator of the multiplicative group $\mathbb{Z}_p^\ast$. We show that there exists a correlation of size $\Theta(r^2)$ that self-tests a maximally entangled state of local dimension $p-1$. The construction of the correlation uses the embedding procedure proposed by Slofstra ($\textit{Forum of Mathematics, Pi.}$ ($2019$)). Since there are infinitely many prime numbers whose smallest multiplicative generator is in the set $\{2,3,5\}$ (D.R. Heath-Brown $\textit{The Quarterly Journal of Mathematics}$ ($1986$) and M. Murty $\textit{The Mathematical Intelligencer}$ ($1988$)), our result implies that constant-sized correlations are sufficient for self-testing of maximally entangled states with unbounded local dimension.

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[1] Ranyiliu Chen, Laura Mančinska, and Jurij Volčič, "All real projective measurements can be self-tested", Nature Physics (2024).

[2] Sean A. Adamson and Petros Wallden, "Practical parallel self-testing of Bell states via magic rectangles", Physical Review A 105 3, 032456 (2022).

[3] Thomas Vidick, "Almost synchronous quantum correlations", Journal of Mathematical Physics 63 2, 022201 (2022).

[4] Jurij Volčič, "Constant-sized self-tests for maximally entangled states and single projective measurements", Quantum 8, 1292 (2024).

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[7] Harshank Shrotriya, Kishor Bharti, and Leong-Chuan Kwek, "Robust semi-device-independent certification of all pure bipartite maximally entangled states via quantum steering", Physical Review Research 3 3, 033093 (2021).

[8] Zhengfeng Ji, Debbie Leung, and Thomas Vidick, "A three-player coherent state embezzlement game", arXiv:1802.04926, (2018).

[9] Anand Natarajan and Tina Zhang, "Quantum free games", arXiv:2302.04322, (2023).

[10] Honghao Fu, "Constant-sized correlations are sufficient to self-test maximally entangled states with unbounded dimension", Quantum 6, 614 (2022).

[11] Zhengfeng Ji, Debbie Leung, and Thomas Vidick, "A three-player coherent state embezzlement game", Quantum 4, 349 (2020).

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