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Electronic Notes in Theoretical Computer Science (ENTCS)
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This paper presents a game semantics for a simply-typed @l-calculus with qbits constants and associated quantum operations. The resulting language is expressive enough to encode any quantum circuit. The language uses a notion of extended variable, similar to that seen in functional languages with pattern matching, but adapted to the needs of dealing with tensor products. The game semantics is constructed from classical game semantics using quantum interventions as questions and measurements results as answers. A soundness result for the semantics is given.