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Observation of coherent coupling between super- and subradiant states of an ensemble of cold atoms collectively coupled to a single propagating optical mode
Riccardo Pennetta, Daniel Lechner, Martin Blaha +3
We discuss the evolution of the quantum state of an ensemble of atoms that are coupled via a single propagating optical mode. We theoretically show that the quantum state of N atom…
Collective radiative dynamics of an ensemble of cold atoms coupled to an optical waveguide
Riccardo Pennetta, Martin Blaha, Aisling Johnson +4
We experimentally and theoretically investigate collective radiative effects in an ensemble of cold atoms coupled to a single-mode optical nanofiber. Our analysis unveils the micro…
Atomic spin-controlled non-reciprocal Raman amplification of fibre-guided light
Sebastian Pucher, Christian Liedl, Shuwei Jin +2
In a non-reciprocal optical amplifier, gain depends on whether the light propagates forwards or backwards through the device. Typically, one requires either the magneto-optical eff…
Bragg condition for scattering into a guided optical mode
B. Olmos, C. Liedl, I. Lesanovsky +1
We theoretically investigate light scattering from an array of atoms into the guided modes of a waveguide. We show that the scattering of a plane wave laser field into the waveguid…