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Long-Time Memory and Ternary Logic Gate Using a Multistable Cavity Magnonic System.

Rui-Chang Shen1, Yi-Pu Wang1, Jie Li1

  • 1Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China.

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Summary
This summary is machine-generated.

Researchers demonstrated tristability in a cavity magnonic system, enabling history-dependent memory storage. This breakthrough paves the way for advanced information processing using cavity magnonics.

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Area of Science:

  • Nonlinear dynamics
  • Quantum optics
  • Cavity magnonics

Background:

  • Multistability in nonlinear dynamical systems offers potential for memory and switching applications.
  • Cavity magnonics integrates microwave photons and magnons for novel quantum functionalities.

Purpose of the Study:

  • To experimentally realize and investigate tristability in a three-mode cavity magnonic system.
  • To explore the potential of this tristable system for information storage and ternary logic operations.

Main Methods:

  • Utilizing a three-mode cavity magnonic system with Kerr nonlinearity.
  • Analyzing the frequency shift of cavity magnon polaritons under specific driving conditions.
  • Characterizing the system's memory retention and demonstrating ternary logic gate functionality.

Main Results:

  • Experimental realization of tristability with three distinct stable states.
  • Demonstration of history-dependent state selection for information storage, with memory times up to 5.11 seconds.
  • Successful implementation of a ternary logic gate with good on-off characteristics.

Conclusions:

  • The demonstrated tristability in cavity magnonics provides a robust platform for information storage.
  • This hybrid system shows promise for developing novel cavity magnonics-based computing and memory devices.