Classical and quantum communication without a shared reference frame

Bartlett, Stephen D.; Rudolph, Terry; Spekkens, R. W.

Classical and quantum communication without a shared reference frame

Authors

Bartlett, Stephen D.

Rudolph, Terry

Spekkens, R. W.

Description

We show that communication without a shared reference frame is possible using entangled states. Both classical and quantum information can be communicated with perfect fidelity without a shared reference frame at a rate that asymptotically approaches one classical bit or one encoded qubit per transmitted qubit. We present an optical scheme to communicate classical bits without a shared reference frame using entangled photon pairs and linear optical Bell state measurements.
4 pages, published version