Towards cavity-free ground state cooling of an acoustic-frequency silicon nitride membrane

Autor:	Pluchar, Christian M., Agrawal, Aman, Schenk, Edward, Wilson, Dalziel J.
Rok vydání:	2020
Předmět:	Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Physics - Applied Physics Physics - Optics
Druh dokumentu:	Working Paper
DOI:	10.1364/AO.394388
Popis:	We demonstrate feedback cooling of a millimeter-scale, 40 kHz SiN membrane from room temperature to 5 mK (3000 phonons) using a Michelson interferometer, and discuss the challenges to ground state cooling without an optical cavity. This advance appears within reach of current membrane technology, positioning it as a compelling alternative to levitated systems for quantum sensing and fundamental weak force measurements. Comment: To be published in the Applied Optics special issue: James C. Wyant College of Optical Sciences
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2004.13187 Zobrazit plný text záznamu View this record from Arxiv