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Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
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Gradient Echo Quantum Memory in Warm Atomic Vapor
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Fast and efficient wireless power transfer via transitionless quantum driving.

Koushik Paul1, Amarendra K Sarma2

  • 1Department of Physics, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.

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This study introduces a fast wireless power transfer (WPT) method using transitionless quantum driving (TQD). The technique significantly speeds up power transfer and is robust against variations and losses.

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Area of Science:

  • Quantum physics
  • Electrical engineering
  • Wireless power transfer

Background:

  • Adiabatic techniques can drive systems beyond classical limits.
  • Wireless power transfer (WPT) is crucial for modern electronics.
  • Existing WPT methods face limitations in speed and efficiency.

Purpose of the Study:

  • To present a robust and efficient method for fast wireless power transfer.
  • To apply transitionless quantum driving (TQD) for enhanced WPT.
  • To demonstrate TQD's effectiveness in overcoming adiabatic limitations for WPT.

Main Methods:

  • Utilizing the transitionless quantum driving (TQD) algorithm.
  • Applying TQD for power transfer between two coils.
  • Analyzing the robustness of the TQD-based WPT scheme.

Main Results:

  • Achieved significantly faster power transfer compared to adiabatic methods.
  • Demonstrated robustness against variations in coupling strength and distance.
  • Showed reasonable immunity to intrinsic losses in the coils.

Conclusions:

  • Transitionless quantum driving (TQD) offers a highly efficient and fast WPT solution.
  • The proposed TQD-based WPT scheme is practical for real-world applications.
  • TQD provides a powerful tool for advancing wireless power transfer technology.