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Qadence: a differentiable interface for digital-analog programs

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arxiv 2401.09915 v1 pith:SATFJUOA submitted 2024-01-18 quant-ph cs.LGcs.PLcs.SE

Qadence: a differentiable interface for digital-analog programs

Dominik Seitz , Niklas Heim , Jo\~ao P. Moutinho , Roland Guichard , Vytautas Abramavicius , Aleksander Wennersteen , Gert-Jan Both , Anton Quelle
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Caroline de Groot Gergana V. Velikova Vincent E. Elfving Mario Dagrada
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classification quant-ph cs.LGcs.PLcs.SE
keywords quantumdaqcdigital-analoginterfaceprogramsqadencenativeparadigm
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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