ECCC-Report TR10-143https://eccc.weizmann.ac.il/report/2010/143Comments and Revisions published for TR10-143en-usSun, 19 Sep 2010 16:35:22 +0200
Paper TR10-143
| Quantum One-Way Communication is Exponentially Stronger Than Classical Communication |
Bo'az Klartag,
Oded Regev
https://eccc.weizmann.ac.il/report/2010/143In STOC 1999, Raz presented a (partial) function for which there is a quantum protocol
communicating only $O(\log n)$ qubits, but for which any classical (randomized, bounded-error) protocol requires $\poly(n)$ bits of communication. That quantum protocol requires two rounds of communication. Ever since Raz's paper it was open whether the same exponential separation can be achieved with a quantum protocol that uses only one round of communication. Here we settle this question in the affirmative.
Sun, 19 Sep 2010 16:35:22 +0200https://eccc.weizmann.ac.il/report/2010/143