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Xanadu Integrates PennyLane and Catalyst with the Munich Quantum Toolkit

Xanadu’s PennyLane and its Catalyst compiler are now integrated with the Munich Quantum Toolkit — bringing advanced quantum compilation directly into one of the most widely used quantum programming frameworks, with just a single line of code.

Xanadu logo with PennyLane and Catalyst beside a compiler plugin connected to the MQT logo.

Xanadu, one of the world’s leading quantum computing companies, has announced the integration of PennyLane and its Catalyst compiler with the Munich Quantum Toolkit (MQT), co-developed and maintained by MQSC and Technical University of Munich.

The integration connects PennyLane’s intuitive Python interface with MQT’s high-performance compilation, optimization, and verification tools. Users can now tap into these capabilities automatically — without changing their existing code structure. A single additional line in a PennyLane program is all it takes to unlock the full compilation pipeline running underneath.

As quantum programs grow in complexity alongside hardware, efficient compilation is becoming a critical bottleneck. This collaboration addresses that directly: PennyLane handles the user-facing interface, while Catalyst and MQT share the heavy lifting for compilation — drawing on decades of mature classical compiler technology now adapted for quantum.

For the full announcement, see the official press release.

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