Quantum Entanglement in Plasmonic Waveguides with Near-Zero Mode Indices
We investigate the quantum entanglement between two quantum dots (QDs) in a plasmonic waveguide with a near-zero mode index, considering the dependence of concurrence on interdot distance, QD waveguide frequency detuning, and coupling strength ratio. High concurrence is achieved for a wide range of interdot distances due to the near-zero mode index, which largely relaxes the strict requirement of interdot distance in conventional dielectric waveguides or metal nanowires. The proposed QD waveguide system with near-zero phase variation along the waveguide near the mode cutoff frequency shows very promising potential in quantum optics and quantum information processing.
X. R. Jin et al., "Quantum Entanglement in Plasmonic Waveguides with Near-Zero Mode Indices," Optics Letters, Optical Society of America, Jan 2013.
The definitive version is available at http://dx.doi.org/10.1364/OL.38.004078
Mechanical and Aerospace Engineering
Article - Journal
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