Language-Integrated Quantum Operations: A Software Architecture for Quantum Computing

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• Dave Wecker, Microsoft Research, Redmond
• Tuesday 30 April 2013, 10:00-11:30
• Auditorium, Microsoft Research Ltd, 21 Station Road, Cambridge, CB1 2FB.

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Compilers and computer-aided design tools will be essential for quantum computing. At this event, Dave Wecker will present a computer-aided design flow, called LIQ Ui|⟩, which transforms a high-level language program, representing a quantum algorithm, into a technology-specific implementation. He’ll trace the significant steps in this flow and illustrate the transformations to the representation of the quantum program.

Dave will also describe, in detail, the low-level quantum language and the quantum simulator within this design flow. LIQ Ui|⟩ is an attempt to remedy many of the difficulties in quantum programming and simulation (namely difficulties in debugging, visualization, and exponential growth in memory), as well as make it possible for a wider audience to design, implement, and test quantum algorithms. It provides a functional language (based on F#) that is efficient for programming and allows a combination of classical and quantum operations. In addition, this advanced memory model allows simulation of a large numbers of qubits, and also uses parallel hardware for processing efficiency. Dave will demonstrate the capabilities of LIQ Ui|⋅⟩ and simulate several quantum algorithms. Shor’s algorithm has been fully implemented in LIQ Ui|⋅⟩; we can factor numbers from 15 to 8189 on a standard desktop and display the corresponding circuit diagrams.

This talk is part of the Microsoft Research Cambridge, public talks series.

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