The Comment by Wolfgang Ketterle (Ref.[1]) purports to present a viable model of superradiance in condensates. However, Ref.[1] is not able to explain the red/blue pump detuning asymmetry that was first observed recently by us (Ref.[2]). It is clear from our original paper (Ref.[3]) that the rate-equation-based theories of Ref.[1] are incomplete since they only model the final growth stage of the process when a red-detuned pump is used. Our theoretical framework (Ref.[3]), on the other hand, also treats the initial growth stage of superradiance and is therefore also capable of explaining the genesis of the red/blue detuning asymmetry (Ref.[2]). This is the key message of our response, which we frame in terms of reference to the specific points raised in Ref. [1].
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