Entanglement can increase asymptotic rates of zero-error classical communication over classical channels

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• William Matthews (IQC, Waterloo)
• Tuesday 21 September 2010, 14:00-15:00
• MR14, Centre for Mathematical Sciences.

If you have a question about this talk, please contact Ashley Montanaro.

It is known that the number of different classical messages which can be communicated with a single use of a classical channel with zero probability of decoding error can sometimes be increased by using entanglement shared between sender and receiver. It has been an open question to determine whether entanglement can ever offer an advantage in terms of the zero-error communication rates achievable in the limit of many channel uses. In this paper we show, by explicit examples, that entanglement can indeed increase asymptotic zero-error capacity. Interestingly, in our examples the quantum protocols are based on the root systems of the exceptional Lie groups E7 and E8.

This talk is part of the CQIF Seminar series.

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