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Title: Entanglement generation between unstable optically active qubits without photodetectors

Abstract

We propose a robust deterministic scheme to generate entanglement at high fidelity without the need for photodetectors even for quantum bits (qubits) with extremely poor optically active states. Our protocol employs stimulated Raman adiabatic passage for population transfer without actually exciting the system. Furthermore, it is found to be effective even if the environmental decoherence rate is of the same order of magnitude as the atom-photon coupling frequency. Our scheme has the potential to solve entanglement generation problems, e.g., in distributed quantum computing.

Authors:
;  [1];  [1];  [2]
  1. Department of Applied Physics/COMP, Aalto University, P. O. Box 14100, FI-00076 AALTO (Finland)
  2. (Finland)
Publication Date:
OSTI Identifier:
22068682
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; COUPLING; PHOTODETECTORS; PHOTONS; POTENTIALS; QUANTUM COMPUTERS; QUANTUM ENTANGLEMENT; QUBITS

Citation Formats

Matsuzaki, Yuichiro, Solinas, Paolo, Moettoenen, Mikko, and Low Temperature Laboratory, Aalto University, P. O. Box 13500, FI-00076 AALTO. Entanglement generation between unstable optically active qubits without photodetectors. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.032338.
Matsuzaki, Yuichiro, Solinas, Paolo, Moettoenen, Mikko, & Low Temperature Laboratory, Aalto University, P. O. Box 13500, FI-00076 AALTO. Entanglement generation between unstable optically active qubits without photodetectors. United States. doi:10.1103/PHYSREVA.84.032338.
Matsuzaki, Yuichiro, Solinas, Paolo, Moettoenen, Mikko, and Low Temperature Laboratory, Aalto University, P. O. Box 13500, FI-00076 AALTO. Thu . "Entanglement generation between unstable optically active qubits without photodetectors". United States. doi:10.1103/PHYSREVA.84.032338.
@article{osti_22068682,
title = {Entanglement generation between unstable optically active qubits without photodetectors},
author = {Matsuzaki, Yuichiro and Solinas, Paolo and Moettoenen, Mikko and Low Temperature Laboratory, Aalto University, P. O. Box 13500, FI-00076 AALTO},
abstractNote = {We propose a robust deterministic scheme to generate entanglement at high fidelity without the need for photodetectors even for quantum bits (qubits) with extremely poor optically active states. Our protocol employs stimulated Raman adiabatic passage for population transfer without actually exciting the system. Furthermore, it is found to be effective even if the environmental decoherence rate is of the same order of magnitude as the atom-photon coupling frequency. Our scheme has the potential to solve entanglement generation problems, e.g., in distributed quantum computing.},
doi = {10.1103/PHYSREVA.84.032338},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}