Persistent Directional Current at Equilibrium in Nonreciprocal Many-Body Near Field Electromagnetic Heat Transfer

Linxiao Zhu, Shanhui Fan

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

We consider the consequence of nonreciprocity in near-field heat transfer by studying systems consisting of magneto-optical nanoparticles. We demonstrate that, in thermal equilibrium, a nonreciprocal many-body system in heat transfer can support a persistent directional heat current, without violating the second law of thermodynamics. Such a persistent directional heat current cannot occur in reciprocal systems, and can only arise in many-body systems in heat transfer. The use of nonreciprocity therefore points to a new regime of near-field heat transfer for the control of heat flow in the nanoscale.

Original languageEnglish (US)
Article number134303
JournalPhysical review letters
Volume117
Issue number13
DOIs
StatePublished - Sep 23 2016

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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