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1.
Synopsis

Earth Wobble Rings True

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Published October 20, 2011
A laser gyroscope measures extremely low-frequency wobbles in the Earth’s rotation.
2.
Viewpoint

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.
3.
Viewpoint

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.
4.
Viewpoint

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.
5.
Focus

Hidden Wave Behavior Revealed

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Phys. Rev. Focus 20, 5 (2007) – Published July 31, 2007
A new technique can detect when electromagnetic waves moving through dense materials exhibit extreme changes in their behavior. It could help with surveying of geological structures or possibly scanning human bodies.