On the quantum link for transport of logic states

Md Mijanur Rahman, Pankaj Kumar Choudhury

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A novel approach for representing logic states in the quantum nodes and transferring the states from one node to another is proposed. Both transmit and receive nodes consist of a rubidium atom (87Rb) placed at the center of a two-mode cavity. Representation of logic states by two subspaces of the space of 87Rb atom hyperfine states eliminates the need for the transmitting node to change logic state during logic transfer through Raman process. The atom is excited by simultaneous application of two laser beams - one for each subspace. Based on the logic state, the atom emits a photon of appropriate frequency and polarization through Raman process within the corresponding subspace. The emitted photon leaks out of the cavity, reaches the receiving node, and initiates logic dependent transitions there. A simulation platform is developed through the system Hamiltonians for transmit and receive nodes followed by the formulation of the time evolution of the density matrices for the nodes. The efficacy of the simulation approach is emphasized.

Original languageEnglish
Pages (from-to)660-665
Number of pages6
JournalOptik
Volume122
Issue number8
DOIs
Publication statusPublished - Apr 2011

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logic
Atoms
Photons
Rubidium
Hamiltonians
atoms
Laser beams
cavities
photons
Polarization
rubidium
platforms
simulation
laser beams
formulations
polarization

Keywords

  • Nanophotonics
  • Quantum communications
  • Quantum networks

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

On the quantum link for transport of logic states. / Rahman, Md Mijanur; Choudhury, Pankaj Kumar.

In: Optik, Vol. 122, No. 8, 04.2011, p. 660-665.

Research output: Contribution to journalArticle

Rahman, Md Mijanur ; Choudhury, Pankaj Kumar. / On the quantum link for transport of logic states. In: Optik. 2011 ; Vol. 122, No. 8. pp. 660-665.
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