Quantinuum launched new open source software as it builds out its quantum computing stack.
The company launched two software components that it has open sourced. The launches include:
- Guppy, an open-source language hosted inside Python. Guppy enables quantum computing programming above the gate level using conditional logic and the ability to incorporate any quantum error correction code.
- Selene, which is an emulator that models realistic, entangled quantum behavior. The goal is to make quantum software research and development easier.
Quantinuum is prepping its software stack for the launch of Helios, the company's next-gen quantum computer. Helios will require a new software stack that can speed up quantum computing use cases.

Guppy and Selene will join TKET, an open-source tool kit for developers and Nexus, a platform to access quantum computing systems. Going forward, Guppy will run software applications on new systems. TKET will be used to optimize Guppy programs. Nexus will be the primary vehicle to accessing Quantinuum hardware, support Guppy and provide access to Selene.
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Key points:
- Guppy treats quantum programs as structured and dynamic software and features common programming constructs.
- Guppy optimizes qubit resource management automatically.
- Selene is designed to help developers build quantum applications when hardware access is limited.
- Selene also supports multiple simulation options including Nvidia GPUs and cuQuantum.
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