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Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel
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Autonomous rotor heat engine.

Alexandre Roulet1, Stefan Nimmrichter1, Juan Miguel Arrazola1

  • 1Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore.

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Summary
This summary is machine-generated.

This study introduces a realistic autonomous heat engine model inspired by piston engines. Quantum thermodynamics analysis reveals lower efficiency in the quantum regime due to additional noise.

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Area of Science:

  • Thermodynamics
  • Quantum Mechanics
  • Engineering

Background:

  • Heat engines convert thermal energy to mechanical motion.
  • Generalizing thermodynamics to the quantum regime is an active research area.
  • Quantum heat engines promise enhanced performance over classical counterparts.

Purpose of the Study:

  • Propose a realistic autonomous heat engine model.
  • Serve as a test bed for quantum effects in thermodynamics.
  • Analyze and compare classical and quantum thermodynamic performance.

Main Methods:

  • Model inspired by piston engines using closed-system Hamiltonians and weak bath coupling.
  • Analytical derivation of classical regime performance via nonlinear Langevin equations.
  • Numerical simulations of the master equation for the quantum regime.

Main Results:

  • Analytical and numerical performance analysis across various parameter regimes.
  • Classical regime performance derived using nonlinear Langevin equations.
  • Quantum regime exhibits consistently lower efficiency due to additional noise.

Conclusions:

  • The proposed model serves as a practical test bed for quantum thermodynamics.
  • Quantum noise negatively impacts heat engine efficiency.
  • Further research needed to overcome quantum limitations in heat engine performance.