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Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
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Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
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Environment-Assisted Modulation of Heat Flux in a Bio-Inspired System Based on Collision Model.

Ali Pedram1, Barış Çakmak2, Özgür E Müstecaplıoğlu1,3

  • 1Department of Physics, Koç University, Sarıyer, Istanbul 34450, Türkiye.

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Summary
This summary is machine-generated.

This study shows that a structured environment can enhance energy transfer efficiency in quantum systems. Hierarchical environmental coupling non-trivially influences steady-state heat flux, offering insights for synthetic light-harvesting systems.

Keywords:
collision modelopen quantum systemsquantum thermodynamics

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Area of Science:

  • Quantum mechanics
  • Biophysics
  • Materials science

Background:

  • Photosynthetic complexes exhibit high energy transfer efficiency.
  • Quantum phenomena like coherence and environmental noise are proposed explanations.
  • Biomimetic research aims to replicate these mechanisms in synthetic systems.

Purpose of the Study:

  • To investigate the impact of a hierarchically structured environment on steady-state heat transport.
  • To explore how system-environment and inter-environment couplings affect energy transfer.
  • To understand the role of environmental coherence in heat flux.

Main Methods:

  • Modeling cold and hot baths using identically prepared qubits in thermal states.
  • Employing a collision model to simulate open quantum dynamics.
  • Analyzing the effects of system-environment, inter-environment couplings, and environmental coherence.

Main Results:

  • Coupling with a structured environment enhances energy transfer.
  • Steady-state heat flux shows a non-monotonic and non-trivial relationship with coupling parameters.
  • Hierarchical structure plays a crucial role in modulating heat transport.

Conclusions:

  • Auxiliary hierarchically structured environments can significantly improve energy transfer efficiency.
  • The findings provide a deeper understanding of quantum energy transport mechanisms.
  • This research informs the design of advanced synthetic light-harvesting technologies.