Access
To read this story in full you will need to login or make a payment (see right).
News and Views
Nature 438, 431-432 (24 November 2005) | doi:10.1038/438431a; Published online 23 November 2005
Quantum computing: A bit chilly
Leonard J. Schulman1
Abstract
A quantum computer needs a constant supply of 'qubits' in a known state. A nuclear magnetic resonance experiment that cools qubits by pumping entropy into a heat bath is a step closer to that goal.
On page 470 of this issue, Baugh et al.1 demonstrate progress on one item in a long list of requirements for a functional quantum computer2, 3 — ensuring a continuous supply of the basic carriers of quantum information (quantum bits, or qubits) in known states. The experiment was small-scale, involving just three qubits and slight cooling to prepare them, but it potentially shows the way to preparing larger numbers of qubits in well-defined states.
To read this story in full you will need to login or make a payment (see right).
MORE ARTICLES LIKE THIS
These links to content published by NPG are automatically generated.
NEWS AND VIEWS
Quantum computing Against the odds of imperfectionNature Physics News and Views (01 Dec 2005)
Shannon's theorem revisitedNature News and Views (10 Feb 1994)
RESEARCH
Experimental implementation of heat-bath algorithmic cooling using solid-state nuclear magnetic resonanceNature Letters to Editor (24 Nov 2005)
Experimental realization of Shor's quantum factoring algorithm using nuclear magnetic resonanceNature Letters to Editor (20 Dec 2001)
Realization of the Cirac?Zoller controlled-NOT quantum gateNature Letters to Editor (27 Mar 2003)