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However, recent results suggest that the thermal conductance of polymers can be enhanced and that their heat transport behaviors may be highly sensitive to nanoscale control. Here we use non-equilibrium molecular dynamics simulations to study the effect of mechanical twist on the steady-state thermal conductance across multi-stranded polyethylene wires. We find that a highly twisted double-helical polyethylene wire can display a thermal conductance up to three times that of its untwisted form, an effect which can be attributed to a structural transition in the strands of the double helix. We also find that in thicker wires composed of many parallel strands, adding just one twist can increase its thermal conductance by over 30%. However, we find that unlike stretching a polymer wire, which causes a monotonic increase in thermal conductance, the effect of twist is highly non-monotonic, and certain amounts of twist can actually decrease the thermal conductance. Finally, we apply the Continuous Chirality Measure (CCM) in an attempt to explore the correlation between heat conductance and chirality. The CCM is found to correlate with twist as expected, but we attribute the observed heat transport behaviors to structural factors other than chirality.<\/jats:p>","DOI":"10.1063\/5.0171680","type":"journal-article","created":{"date-parts":[[2023,11,2]],"date-time":"2023-11-02T10:14:21Z","timestamp":1698920061000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":6,"title":["Heat transport with a twist"],"prefix":"10.1063","volume":"159","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-9735-5839","authenticated-orcid":false,"given":"Ethan","family":"Abraham","sequence":"first","affiliation":[{"name":"Department of Physics and Astronomy, University of Pennsylvania 1 , Philadelphia, Pennsylvania 19104, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1547-0334","authenticated-orcid":false,"given":"Mohammadhasan","family":"Dinpajooh","sequence":"additional","affiliation":[{"name":"Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory 2 , Richland, Washington 99352, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5302-1660","authenticated-orcid":false,"given":"Cl\u00e0udia","family":"Climent","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Pennsylvania 3 , Philadelphia, Pennsylvania 19104, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8431-0967","authenticated-orcid":false,"given":"Abraham","family":"Nitzan","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Pennsylvania 3 , Philadelphia, Pennsylvania 19104, USA"},{"name":"School of Chemistry, Tel Aviv University 4 , Tel Aviv 69978, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2023,11,2]]},"reference":[{"key":"2023111616164994600_c1","doi-asserted-by":"publisher","first-page":"4846","DOI":"10.1073\/pnas.1503449112","volume":"112","year":"2015","journal-title":"Proc. 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