Quantum optics phenomena in atomically doped carbon nanotubes |
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Authors: | I V Bondarev |
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Institution: | (1) Physics Department, North Carolina Central University, Durham, NC 27707, USA;(2) Institute for Nuclear Problems, Belarusian State University, Minsk, 220050, Belarus |
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Abstract: | Quantum optics phenomena, including light absorbtion and atomic states entanglement, are discussed for carbon nanotubes doped
with atoms (ions). It has been shown that, similar to semiconductor microcavities and photonic band-gap materials, carbon
nanotubes may qualitatively change the character of the atom-electromagnetic-field interactions, yielding strong atom-field
coupling regime with the formation of quasi-one-dimensional atomic polaritons. These may be observed experimentally via the
effect of the absorption line splitting (Rabi splitting) in the frequency range close to the atomic transition frequency.
A scheme for entangling atomic polaritons is investigated using the photon Green function formalism for quantizing electromagnetic
fields in the presence of quasi-one-dimensional absorbing and dispersing media. Small-diameter metallic nanotubes are shown
to result in sizable amounts of the two-qubit atomic entanglement with no damping for sufficiently long times, thus challenging
novel applications of atomically doped carbon nanotubes in quantum information science.
The text was submitted by the author in English. |
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