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In a tight spot, spin and charge separate

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Gregory A. Fiete, Physics 4, 30 (2011) – Published April 11, 2011
Photons (bosons) confined in a hollow waveguide containing an atomic gas could show spin-charge separation, which is more commonly associated with one-dimensional fermions.
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Generation of light bullets

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Frank W. Wise, Physics 3, 107 (2010) – Published December 20, 2010
Light pulses injected into an array of waveguides form solitons in time and space.
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Phonon lasers gain a sound foundation

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Jacob B. Khurgin, Physics 3, 16 (2010) – Published February 22, 2010
Two groups have made progress in building laserlike devices that emit phonons rather than photons.