Photons paired with phonons

Photons refrigerating phonons

Generation of paired photons with controllable waveforms.

We describe experiments and theory showing the generation of counterpropagating paired photons with coherence times of about 50 ns and waveforms that are controllable at a rudimentary level. Using cw lasers, electromagnetically induced transparency and cold 87Rb atoms we generate paired photons into opposing single-mode optical fibers at a rate of approximately 12 000 pairs per second.

Photons, phonons, and plasmons with orbital angular momentum in plasmas

Exact eigen modes with orbital angular momentum (OAM) in the complex media of unmagnetized homogeneous plasmas are studied. Three exact eigen modes with OAM are derived, i.e., photons, phonons, and plasmons. The OAM of different plasma components are closely related to the charge polarities. For photons, the OAM of electrons and ions are of the same magnitude but opposite direction, and the tot...

Optomechanical quantum information processing with photons and phonons.

We describe how strong resonant interactions in multimode optomechanical systems can be used to induce controlled nonlinear couplings between single photons and phonons. Combined with linear mapping schemes between photons and phonons, these techniques provide a universal building block for various classical and quantum information processing applications. Our approach is especially suited for ...

Magnons and their interactions with phonons and photons

2014 A review is given of the theory of spin waves and of the principal physical effects associated with spin,waves. It is shown that the boundary condition mx = my = 0 at the surface permits the excitation of spin waves by a uniform rf field. These excitations have been observed by Waring and Jarrett and by Seavey and Tannenwald. LE JOURNAL DE PHYSIQUE ET LE RADIUM TOME 20, FÉVRIER 1959, A mag...