An Isaac Newton Institute Workshop

Entanglement and Transfer of Quantum Information

Easing the Experimental Burden: Global Control, Perpetual Coupling and the Like.

28th September 2004

Authors: Simon Benjamin (Oxford), Sougato Bose (Univ. College London), Brendon Lovett (Oxford), John Reina (Oxford), Adel Bririd (Hitachi Labs Cambridge), Alastair Kay (Cambridge)

Abstract

The most commonly described paradigm for quantum computation involves switching individual qubit-qubit interactions 'on' and 'off' at will. This is of course an enormous challenge for many of the proposed experimental implementations. I will discuss alternative models that may allow one to (a) give up all local manipulations in favour of global control, (b) leave the underlying physical interactions on continuously, or (c) both.

Related papers: quant-ph/0407063 Phys. Rev. Lett. 90, 247901 (2003). Phys. Rev. Lett. 88, 017904 (2002).