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We present a protocol for the teleportation of the quantum state of a pulseof light onto the collective spin state of an atomic ensemble. The entangledstate of light and atoms employed as a resource in this protocol is created byprobing the collective atomic spin, Larmor precessing in an external magneticfield, off resonantly with a coherent pulse of light. We take here for thefirst time full account of the effects of Larmor precession and show that itgives rise to a qualitatively new type of multimode entangled state of lightand atoms. The protocol is shown to be robust against the dominating sources ofnoise and can be implemented with an atomic ensemble at room temperatureinteracting with free space light. We also provide a scheme to perform thereadout of the Larmor precessing spin state enabling the verification ofsuccessful teleportation as well as the creation of spin squeezing.Comment: 11 pages, 5 figure

Teleportation and spin squeezing utilizing multimode entanglement of light with atoms