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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.
Physical Review Letters
|November 12, 2021
Summary
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.
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.
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