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Quantum synchronization in nanoscale heat engines.

Noufal Jaseem1, Michal Hajdušek2,3, Vlatko Vedral2,4

  • 1Department of Physics, Indian Institute of Technology-Bombay, Powai, Mumbai 400076, India.

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Quantum synchronization in nanoscale heat engines reveals a stable limit cycle. Synchronization limits steady-state power, linking quantum thermodynamics and phase coherence.

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Area of Science:

  • Quantum thermodynamics
  • Quantum synchronization
  • Nanoscale heat engines

Background:

  • Synchronization is common in classical systems, prompting study in quantum systems.
  • Existing research on quantum synchronization lacks clear links to quantum technology applications.

Purpose of the Study:

  • To establish nanoscale heat engines as a platform for studying quantum synchronization.
  • To demonstrate the relationship between heat engine power and synchronization properties.
  • To connect quantum synchronization with quantum thermodynamics and phase coherence.

Main Methods:

  • Theoretical analysis of coherently driven nanoscale heat engines.
  • Investigation of stable limit cycles in quantum synchronization.
  • Mathematical proof linking steady-state power to phase-locking properties.

Main Results:

  • Nanoscale heat engines naturally exhibit stable quantum synchronization and limit cycles.
  • Quantum synchronization imposes an upper bound on the steady-state power of heat engines.
  • Finite steady-state power is achieved if and only if the synchronization measure is non-zero.
  • Engine efficiency determines bath temperatures at which synchronization disappears.

Conclusions:

  • Quantum synchronization is a fundamental property of nanoscale heat engines.
  • Synchronization acts as a mechanism for stable phase coherence in quantum thermodynamics.
  • This work bridges quantum synchronization with practical quantum technology applications.