Collective atomic recoil lasing with a partially coherent pump |
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Authors: | Robb G R M Firth W J |
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Institution: | Scottish Universities Physics Alliance (SUPA), Department of Physics, University of Strathclyde, 107 Rottenrow, Glasgow G4 0NG, United Kingdom. |
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Abstract: | We investigate the effect of pump phase noise on the collective backscattering of light by a cold, collisionless atomic gas. We show that for a partially coherent pump field, the growth rate of the backscattered field is reduced relative to that for a coherent pump, but the backscattered intensity can be increased. Our results demonstrate that fluctuations and noise can play a counterintuitive role in nonlocally coupled many-body systems. |
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