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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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Non-Thermal Quantum Engine in Transmon Qubits.

Cleverson Cherubim1, Frederico Brito1, Sebastian Deffner2

  • 1Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, 13560-970 São Carlos, SP, Brazil.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a quantum engine using transmon qubits. This study provides crucial insights into quantum thermodynamics and engine efficiency for quantum technologies.

Keywords:
nonequilibrium systemsquantum heat enginesquantum thermodynamics

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Area of Science:

  • Quantum thermodynamics
  • Quantum engineering

Background:

  • Quantum technologies require understanding quantum-scale thermodynamic processes.
  • Quantum processes differ from macroscopic thermodynamics, operating far from equilibrium and influenced by fluctuations.
  • Experimental data is vital for a comprehensive thermodynamic framework.

Purpose of the Study:

  • To theoretically propose a realistic quantum engine.
  • To utilize transmon qubits as the working substance for the engine.
  • To analyze the engine's dynamics and efficiency.

Main Methods:

  • Theoretical proposal of a quantum engine.
  • Analytical solution of the engine's dynamics.
  • Calculation of the engine's efficiency.

Main Results:

  • A theoretically proposed, experimentally realistic quantum engine.
  • Analytical solutions for the engine's dynamics.
  • Calculated efficiency of the transmon qubit quantum engine.

Conclusions:

  • The study provides a theoretical framework for a quantum engine.
  • Highlights the role of transmon qubits in quantum thermodynamic processes.
  • Offers insights into the efficiency of quantum engines for future technologies.