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PIRSA:08120019

Quantum boolean functions

APA

Montanaro, A. (2008). Quantum boolean functions. Perimeter Institute for Theoretical Physics. https://pirsa.org/08120019

Ashley Montanaro University of Bristol

Talk numberPIRSA:08120019
Source RepositoryPIRSA

Abstract

In recent years, the analysis of boolean functions has arisen as an important theme in theoretical computer science. In this talk I will discuss an extension of the concept of a boolean function to quantum computation. It turns out that many important classical results in the theory of boolean functions have natural quantum analogues. These include property testing of boolean functions; the Goldreich-Levin algorithm for approximately learning boolean functions; and a theorem of Friedgut, Kalai and Naor on the Fourier spectra of boolean functions. The quantum generalisation of this theorem uses a quantum extension of the hypercontractive inequality of Bonami, Gross and Beckner. This talk is based on joint work with Tobias Osborne.