Raman fingerprints on the Bloch sphere of a spinor Bose–Einstein condensate

@article{Schultz2016RamanFO,
  title={Raman fingerprints on the Bloch sphere of a spinor Bose–Einstein condensate},
  author={Justin Tyler Schultz and A. Hansen and Joseph D. Murphree and Maitreyi Jayaseelan and N. P. Bigelow},
  journal={Journal of Modern Optics},
  year={2016},
  volume={63},
  pages={1759 - 1767}
}
We explore the geometric interpretation of a diabatic, two-photon Raman process as a rotation on the Bloch sphere for a pseudo-spin- system. The spin state of a spin- quantum system can be described by a point on the surface of the Bloch sphere, and its evolution during a Raman pulse is a trajectory on the sphere determined by properties of the optical beams: the pulse area, the relative intensities and phases and the relative frequencies. We experimentally demonstrate key features of this… 

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