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Quantum teleportation of four-dimensional qudits

Author(s): Al-Amri, M (Al-Amri, M.); Evers, J (Evers, Joerg); Zubairy, MS (Zubairy, M. Suhail) Source: PHYSICAL REVIEW A, 82 (2): Art. No. 022329 AUG 25 2010

A protocol for the teleportation of arbitrary quantum states of four-dimensional qudits is presented. The qudit to be teleported is encoded in the combined state of two ensembles of atoms placed in a cavity at the sender's side. The receiver uses a similar setup, with his atoms prepared in a particular initial state. The teleportation protocol then consists of adiabatic mapping of the ensemble states onto photonic degrees of freedom, which are then directed onto a specific beam splitter and detection setup. For part of the measurement outcome, the qudit state is fully transferred to the receiver. Other detection events lead to partial teleportation or failed teleportation attempts. The interpretation of the different detection outcomes and possible ways of improving the full teleportation probability are discussed.

Author(s):  Al-Amri, M (Al-Amri, M.); Evers, J (Evers, Joerg); Zubairy, MS (Zubairy, M. Suhail)
Source:  PHYSICAL REVIEW A, 82 (2): Art. No. 022329 AUG 25 2010
Language:  English
Document Type:  Article
KeyWords Plus:  PODOLSKY-ROSEN CHANNELS; EXPERIMENTAL REALIZATION; RYDBERG BLOCKADE; STATE TRANSFER; ATOMIC QUBITS; LIGHT; MEMORY; ENTANGLEMENT; MATTER
Addresses:  Al-Amri, M.] KACST, Natl Ctr Math & Phys, Riyadh 11442, Saudi Arabia; [Al-Amri, M.; Evers, Joerg; Zubairy, M. Suhail] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany; [Al-Amri, M.; Evers, Joerg; Zubairy, M. Suhail] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA; [Al-Amri, M.; Evers, Joerg; Zubairy, M. Suhail] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
Reprint Address:  Al-Amri, M, KACST, Natl Ctr Math & Phys, POB 6086, Riyadh 11442, Saudi Arabia.
Funding Agency:  King Abdul Aziz City for Science and Technology - Qatar National Research Fund - Alexander von Humboldt Foundation
Publisher:  AMER PHYSICAL SOC
Publisher Address:  ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN:  1050-2947
29-char Source Abbrev.:  PHYS REV A
ISO Source Abbrev.:  Phys. Rev. A
Subject Category:  Optics; Physics, Atomic, Molecular & Chemical
ISI Document Delivery No.:  642OM
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