Taming non-compositionality using new binders

  • Authors:
  • Frédéric Prost

  • Affiliations:
  • LIG, Grenoble, France

  • Venue:
  • UC'07 Proceedings of the 6th international conference on Unconventional Computation
  • Year:
  • 2007

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Abstract

We propose an extension of the traditional Λ-calculus in which terms are used to control an outside computing device (quantum computer, DNA computer...). We introduce two new binders: v and ρ. In v x.M, x denotes an abstract resource of the outside computing device, whereas in ρx.M, x denotes a concrete resource. These two binders have different properties (in terms of a-conversion, scope extrusion, convertibility) than the ones of standard Λ-binder. We illustrate the potential benefits of our approach with a study of a quantum computing language in which these new binders prove meaningful. We introduce a typing system for this quantum computing framework in which linearity is only required for concrete quantum bits offering a greater expressiveness than previous propositions.