Internal state cooling of an atom with thermal light

Autor:	Younes, Amanda, Putnam, Randall, Hamilton, Paul, Campbell, Wesley C.
Rok vydání:	2024
Předmět:	Quantum Physics Physics - Atomic Physics
Druh dokumentu:	Working Paper
Popis:	A near-minimal instance of optical cooling is experimentally presented wherein the internal-state entropy of a single atom is reduced more than twofold by illuminating it with broadband, incoherent light. Since the rate of optical pumping by a thermal state increases monotonically with its temperature, the cooling power in this scenario increases with higher thermal occupation, an example of a phenomenon known as cooling by heating. In contrast to optical pumping by coherent, narrow-band laser light, here we perform the same task with fiber-coupled, broadband sunlight, the brightest laboratory-accessible source of continuous blackbody radiation. Comment: 4 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2411.04733 Zobrazit plný text záznamu View this record from Arxiv