Minimum cbits for remote preperation and measurement of a qubit

Preprint
Publisher Website
Google Scholar
  • 20 June 2000
Abstract
Quantum teleportation requires 2 cbits to be sent from Alice to Bob in order to transmit an {\em unknown} qubit provided they share an entangled EPR pair. Classical teleportation requires 2.19 cbits to be sent from Alice to Bob in order to simulate a {\em known} qubit provided they share local hidden variables. We show that there is a simple scheme which requires 1 cbit to be sent from Alice to Bob for simulating a {\em known} qubit at a remote place provided they share an entangled EPR pair. This suggests that the classical teleportation should be compared with the present scheme for comparing the cbit cost (1.19 cbits more) and the use of entanglement versus local hidden variables.

This publication has 0 references indexed in Scilit: