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Colloquia
Colloquium
Friday, January 24, 2003
4:00 PM
Physics Building, Room 204
Note special time.

David Divincenzo
[Host: Olivier Pfister]
IBM
"Prospects for Quantum Computation"

ABSTRACT:
A "standard model" for the physical implementation of a quantum computer
was laid out some years ago. It indicated a set of capabilities that
had to be achieved to make quantum processing possible: 1) systems with
wellcharacterized qubits must be constructed. 2) These qubits should be
initializable to the "0" state. 3) It must be possible to control the
one and twoqubit Hamiltonian of the system, so that unitary quantum
logic gates are enacted. 4) Decoherence and imprecision of gate
operations must be kept very low. 5) Reliable measurements of the
quantum state of individual qubits must be possible. In this talk I
will indicate progress towards these goals, after first reviewing why we
want to do quantum computation. 



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