Cooling many particles at once
Abstract
We propose a mechanism for the collective cooling of the common and individual phonon modes of a large number N of trapped particles to very low temperatures by applying red-detuned laser fields and coupling them resonantly to the quantized field inside an optical resonator. The dynamics is described by what appears to be rate equations, but where some of the major quantities are coherences and not populations. The coherences arise from the cooperative behavior of the system and provide cooling rates of the same order of magnitude as the cavity decay rate kappa. This constitutes a significant speed-up compared to other cooling mechanisms since kappa can be as large as N times the single-particle cavity or laser coupling constant.Keywords
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