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Updated: Sep 9, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

Topological phonon blockade and its transfer via dark-mode engineering.

Deng-Gao Lai¹, Adam Miranowicz^2,3, Franco Nori^2,4

¹RIKEN Center for Quantum Computing (RQC), 2-1 Hirosawa, RIKEN Wako-shi, Saitama, Japan. denggaolai@foxmail.com.

Nature Communications

|August 29, 2025

Summary

Researchers developed a novel method for controlling topological phonon transfer and blockade using dark-mode engineering and synthetic magnetism. This breakthrough allows on-demand switching between phonon blockade and transfer, enhancing quantum information processing.

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Area of Science:

Quantum physics
Condensed matter physics
Topological materials

Background:

Unidirectional topological behavior is sensitive to dark modes, which can block phonon transfer.
Existing methods struggle to control topological operations in the presence of dark modes.

Purpose of the Study:

To demonstrate a method for achieving versatile nonreciprocal topological phonon transfer and blockade.
To overcome the limitations imposed by dark modes in topological systems.

Main Methods:

Utilizing dark-mode engineering and synthetic magnetism.
Precisely controlling transitions between dark-mode nonbreaking and breaking regimes.

Main Results:

Achieved on-demand switching between topological phonon blockade and transfer.
Demonstrated topological phonon blockade in the dark-mode nonbreaking regime and transfer in the breaking regime.
Showcased the potential for scalable network-based topological phonon transfer in quantum optomechanical networks.

Conclusions:

Dark-mode engineering offers a versatile solution for controlling topological phonon dynamics.
The proposed mechanism advances the development of scalable quantum information processors and topological quantum resources.