Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
From Feynman's ratchet to time crystalline molecular motors
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).ORCID iD: 0000-0003-3408-5834
Number of Authors: 42023 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 159, no 6, article id 061101Article in journal (Refereed) Published
Abstract [en]

Cats have an instinctive ability to use the connection governing parallel transport in the space of shapes to land safely on their feet. Here, we argue that the concept of connection, which is extensively used in general relativity and other parts of theoretical physics, also explains the impressive performance of molecular motors by enabling molecules to evade the conclusions of Feynman's ratchet-and-pawl analysis. First, we demonstrate the emergence of directed rotational motion from shape changes, which is independent of angular momentum. Then, we computationally design knotted polyalanine molecules and demonstrate the organization of individual atom thermal vibrations into collective rotational motion, which is independent of angular momentum. The motion occurs effortlessly even in ambient water and can be further enhanced through spontaneous symmetry breaking, rendering the molecule an effective theory time crystal. Our findings can be experimentally verified via nuclear magnetic resonance measurements and hold practical potential for molecular motor design and engineering.

Place, publisher, year, edition, pages
2023. Vol. 159, no 6, article id 061101
National Category
Atom and Molecular Physics and Optics Other Physics Topics
Identifiers
URN: urn:nbn:se:su:diva-220887DOI: 10.1063/5.0160431ISI: 001044514400003PubMedID: 37551806Scopus ID: 2-s2.0-85166783892OAI: oai:DiVA.org:su-220887DiVA, id: diva2:1798214
Available from: 2023-09-18 Created: 2023-09-18 Last updated: 2023-09-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records

Niemi, Antti

Search in DiVA

By author/editor
Niemi, Antti
By organisation
Nordic Institute for Theoretical Physics (Nordita)
In the same journal
Journal of Chemical Physics
Atom and Molecular Physics and OpticsOther Physics Topics

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 20 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf