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Title: Nanoscale transfer of angular momentum mediated by the Casimir torque

Abstract

Casimir interactions play an important role in the dynamics of nanoscale objects. Here, we investigate the noncontact transfer of angular momentum at the nanoscale through the analysis of the Casimir torque acting on a chain of rotating nanoparticles. We show that this interaction, which arises from the vacuum and thermal fluctuations of the electromagnetic field, enables an efficient transfer of angular momentum between the elements of the chain. Working within the framework of fluctuational electrodynamics, we derive analytical expressions for the Casimir torque acting on each nanoparticle in the chain, which we use to study the synchronization of chains with different geometries and to predict unexpected dynamics, including a “rattleback”-like behavior. Our results provide insights into the Casimir torque and how it can be exploited to achieve efficient noncontact transfer of angular momentum at the nanoscale, and therefore have important implications for the control and manipulation of nanomechanical devices.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of New Mexico, Albuquerque, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1544683
Report Number(s):
LA-UR-18-29153
Journal ID: ISSN 2399-3650
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Communications Physics
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Journal ID: ISSN 2399-3650
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Sanders, Steven, de Melo Kort-Kamp, Wilton Junior, Dalvit, Diego Alejandro Roberto, and Manjavacas, Alejandro. Nanoscale transfer of angular momentum mediated by the Casimir torque. United States: N. p., 2019. Web. doi:10.1038/s42005-019-0163-3.
Sanders, Steven, de Melo Kort-Kamp, Wilton Junior, Dalvit, Diego Alejandro Roberto, & Manjavacas, Alejandro. Nanoscale transfer of angular momentum mediated by the Casimir torque. United States. doi:https://doi.org/10.1038/s42005-019-0163-3
Sanders, Steven, de Melo Kort-Kamp, Wilton Junior, Dalvit, Diego Alejandro Roberto, and Manjavacas, Alejandro. Tue . "Nanoscale transfer of angular momentum mediated by the Casimir torque". United States. doi:https://doi.org/10.1038/s42005-019-0163-3. https://www.osti.gov/servlets/purl/1544683.
@article{osti_1544683,
title = {Nanoscale transfer of angular momentum mediated by the Casimir torque},
author = {Sanders, Steven and de Melo Kort-Kamp, Wilton Junior and Dalvit, Diego Alejandro Roberto and Manjavacas, Alejandro},
abstractNote = {Casimir interactions play an important role in the dynamics of nanoscale objects. Here, we investigate the noncontact transfer of angular momentum at the nanoscale through the analysis of the Casimir torque acting on a chain of rotating nanoparticles. We show that this interaction, which arises from the vacuum and thermal fluctuations of the electromagnetic field, enables an efficient transfer of angular momentum between the elements of the chain. Working within the framework of fluctuational electrodynamics, we derive analytical expressions for the Casimir torque acting on each nanoparticle in the chain, which we use to study the synchronization of chains with different geometries and to predict unexpected dynamics, including a “rattleback”-like behavior. Our results provide insights into the Casimir torque and how it can be exploited to achieve efficient noncontact transfer of angular momentum at the nanoscale, and therefore have important implications for the control and manipulation of nanomechanical devices.},
doi = {10.1038/s42005-019-0163-3},
journal = {Communications Physics},
number = 1,
volume = 2,
place = {United States},
year = {2019},
month = {6}
}

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