全电冷却光学悬浮纳米粒子

IF 3.8 2区物理与天体物理 Q2 PHYSICS, APPLIED

Physical Review Applied Pub Date : 2024-08-05 DOI:10.1103/physrevapplied.22.024010

Oscar Kremer, Igor Califrer, Daniel Tandeitnik, Jean Pierre von der Weid, Guilherme Temporão, Thiago Guerreiro

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引用次数: 0

摘要

我们实现了一种全电气控制器，用于光学悬浮纳米粒子的三维反馈冷却，能够使质量中心运动达到亚开尔文温度。该控制器基于最优策略，通过延迟位置测量进行状态估计。该方法提供了预冷和解耦纳米粒子横向自由度的简化路径。数值模拟显示，在改进的量子限制检测装置中，所有三个轴都可以冷却到几声子的状态。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

All-electrical cooling of an optically levitated nanoparticle

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All-electrical cooling of an optically levitated nanoparticle

We implement an all-electrical controller for 3D feedback cooling of an optically levitated nanoparticle capable of reaching subkelvin temperatures for the center-of-mass motion. The controller is based on an optimal policy in which state estimation is made by delayed position measurements. The method offers a simplified path for precooling and decoupling the transverse degrees of freedom of the nanoparticle. Numerical simulations show that in an improved setup with quantum limited detection, all three axes can be cooled down to a few-phonon regime.

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来源期刊

Physical Review Applied PHYSICS, APPLIED-

CiteScore

7.80

自引率

8.70%

发文量

760

审稿时长

2.5 months

期刊介绍： Physical Review Applied (PRApplied) publishes high-quality papers that bridge the gap between engineering and physics, and between current and future technologies. PRApplied welcomes papers from both the engineering and physics communities, in academia and industry. PRApplied focuses on topics including: Biophysics, bioelectronics, and biomedical engineering, Device physics, Electronics, Technology to harvest, store, and transmit energy, focusing on renewable energy technologies, Geophysics and space science, Industrial physics, Magnetism and spintronics, Metamaterials, Microfluidics, Nonlinear dynamics and pattern formation in natural or manufactured systems, Nanoscience and nanotechnology, Optics, optoelectronics, photonics, and photonic devices, Quantum information processing, both algorithms and hardware, Soft matter physics, including granular and complex fluids and active matter.