Teleportation seen from space-time
Abstract
Formal similarity between Minkowski tetrads and Bell bases allows to think of metric tensors in terms of quantum teleportation protocols. The role of null tetrads for quantum information processing is different. They define qubits resistant to a special kind of noise that occurs if coding and decoding of quantum information is performed in different reference frames. These examples show that mutual links between quantum information and the 2-spinor calculus may be nontrivial and worthy of further studies.
Cite
@article{arxiv.0803.3289,
title = {Teleportation seen from space-time},
author = {Marek Czachor},
journal= {arXiv preprint arXiv:0803.3289},
year = {2008}
}
Comments
v1 is a preliminary progress report; in v2 notation in eq. (24) corrected, and a comment on (24) added. Typos in (3), (16), (39) corrected. v3 is extended by sections on relativistic qubits and PND's, and fuller bibliography of the subject; v4 is resubmitted to Class. Quant. Grav. with suggested modifications included