Parallel processing of information plays a critical role in accelerating computation. This includes quantum computers, where parallel processing of quantum information will play a critical role in practical quantum advantage. Here, we demonstrate a new type of parallel entangling gates in a trapped-ion quantum computer, that simultaneously provides efficient gate-pulse synthesis and calibration, as well as graph-pattern-agnostic implementation. We demonstrate the resulting reduced execution time in three well-known algorithms, exhibiting disjoint gates, a star graph and a ring graph respectively. For disjoint qubit pairs the execution time of our parallel gates is comparable to that of a single-pair entangling gate resulting in an approximately linear speed up. For all graph patterns our parallel gate fidelities are comparable to the fidelity of a single-pair entangling gate. These advantages motivate architectures featuring multiple medium length ion chains in future quantum computing devices.
@article{arxiv.2604.25993,
title = {Arbitrary parallel entangling gates with independent calibration on a trapped ion quantum computer},
author = {Matthew Diaz and Masoud Mohammadi-Arzanagh and Yingyue Zhu and Mohammad Hafezi and Norbert M. Linke and Alaina M. Green and Arthur Y. Nam},
journal= {arXiv preprint arXiv:2604.25993},
year = {2026}
}