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arXiv · 2401.09915

Qadence: a differentiable interface for digital-analog programs

Dominik Seitz·Niklas Heim·João P. Moutinho·Roland Guichard·Vytautas Abramavicius·Aleksander Wennersteen·Gert-Jan Both·Anton Quelle·Caroline de Groot·Gergana V. Velikova·Vincent E. Elfving·Mario Dagrada
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Abstract

Digital-analog quantum computing (DAQC) is an alternative paradigm for universal quantum computation combining digital single-qubit gates with global analog operations acting on a register of interacting qubits. Currently, no available open-source software is tailored to express, differentiate, and execute programs within the DAQC paradigm. In this work, we address this shortfall by presenting Qadence, a high-level programming interface for building complex digital-analog quantum programs developed at Pasqal. Thanks to its flexible interface, native differentiability, and focus on real-device execution, Qadence aims at advancing research on variational quantum algorithms built for native DAQC platforms such as Rydberg atom arrays.

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Dominik Seitz, Niklas Heim, João P. Moutinho, Roland Guichard, Vytautas Abramavicius, Aleksander Wennersteen, Gert-Jan Both, Anton Quelle, Caroline de Groot, Gergana V. Velikova, Vincent E. Elfving, Mario Dagrada. 2024-01-18. Qadence: a differentiable interface for digital-analog programs. https://arxiv.org/abs/2401.09915

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