AT&T Quantum Computing Seminar


QUANTUM COMPUTATION
AND
QUANTUM ERROR CORRECTION

The next talk in our series will be:

Title:

Orthogonal Geometry and Quantum Error Correction

Speaker:

Robert Calderbank

Place:

AT&T Laboratories
600 Mountain Avenue
Murray Hill, NJ
Murray Hill Building, Room: 2D-101

Time:

2:00 p.m.
Wednesday, November 27, 1996
Thanks to everyone for registering early AND arriving early.

ABSTRACT:

Quantum effects are seldom evident in today's electronic devices since the quantum states of many millions of atoms are averaged together blurring their discreteness. But in quantum computing the foundations of quantum mechanics are finding direct and visible application in information processing. The unreasonable effectiveness of quantum computing is founded on coherent quantum superposition or entanglement which allows a large number of calculations to be performed simultaneously. This coherence is lost as a quantum system interacts with its environment and an important challenge today is to devise means of preserving it. A quantum error correcting code is a way of encoding quantum states into qubits so that error or decoherence in a small number of individual qubits has little or no effect on the encoded data. This talk will describe a beautiful group theoretic framework that simplifies the presentation of known quantum error correcting codes and greatly facilitates the construction of new examples.

contact:


dimacs-www@dimacs.rutgers.edu
Document last modified on December 4, 1996