Topological quantum devices: a review

Area of Science:

• Condensed matter physics
• Quantum device functionalities

Background:

• Topology's integration into condensed matter physics deepens understanding of quasiparticle transport.
• This has led to a paradigm shift towards novel quantum devices with enhanced energy and information transfer capabilities.

Purpose of the Study:

• To review recent research progress in topological quantum devices.
• To outline topological spintronic, electronic, and optoelectronic devices.

Main Methods:

• Review of topological spintronic devices based on spin-momentum locking.
• Highlighting topological electronic devices with quantized electron and dissipationless spin conductivity.
• Discussing quantum optoelectronic devices with topology-redefined photoexcitation and emission.

Main Results:

• Topological spintronic devices leverage spin-momentum locking for robust functionalities.
• Topological electronic devices exhibit quantized electron and dissipationless spin conductivity.
• Quantum optoelectronic devices demonstrate topology-enhanced photoexcitation and emission.

Conclusions:

• The field of topological quantum devices is rapidly advancing.
• Significant future developments are anticipated in this nascent field.