Title: Maxewll’s demon and quantum computers
Michel Devoret
Yale University

When: 20 june 2017, 12h30

Where: Sala de conferencias, módulo 00, facultad de ciencias


Can we prolong the coherence of a two-state manifold in a complex quantum system beyond the coherence of its longest-lived component? This question is the starting point in the construction of a scalable quantum computer. It translates in the search for processes that operate as some sort of Maxwell’s demon, reliably correcting the errors resulting from the coupling between qubits and their environment. The presentation will review recent experiments that tested the dynamical protection, by Josephson circuits, of a logical qubit memory based on superpositions of particular coherent states of a superconducting resonator.