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New beam splitter techniques extend the world of precision experiments with matter waves.
Trions—one electron bound to two holes via Coulomb forces—can be observed in the optical spectra of doped carbon nanotubes.
Evidence for radiation analogous to that predicted near black holes by Hawking has been found in the emission of optical filaments propagating through glass.
Cold atoms in optical cavities can undergo a transition to a liquid-crystalline state in which the positions of the atoms are determined by the photon field.