Ernesto was born and grew up in Rio de Janeiro, where he graduated in physics from Pontifícia Universidade Católica (PUC-Rio) in 1996. In 1998 he completed a Master''s degree in quantum optics at Universidade Federal do Rio de Janeiro (UFRJ), working with Paulo Américo Maia Neto on the dynamical Casimir effect. He got his PhD in quantum information and foundations of quantum mechanics from the University of Oxford in 2002, with Lucien Hardy as thesis advisor.

Talks by Ernesto Galvao

Closed time-like curves in measurement-based quantum computation

Ernesto Galvao Universidade Federal Fluminense
Many results have been recently obtained regarding the power of hypothetical closed time-like curves (CTC’s) in quantum computation. Most of them have been derived using Deutsch’s influential model for quantum CTCs [D. Deutsch, Phys. Rev. D 44, 3197 (1991)]. Deutsch’s model demands self-consistency for the time-travelling system, but in the absence of (hypothetical) physical CTCs, it cannot be tested experimentally. In this paper we show how the one-way model of measurement-based quantum computation (MBQC) can be used to test Deutsch’s model for CTCs.