# Will Quantum Topology Redesign Semiconductor Technology?

## TL;DR

Quantum topology could revolutionize semiconductor technology by enabling energy-efficient, robust electronic states for next-generation devices.

## Contribution

The paper explores how non-Hermitian topological materials can address semiconductor industry challenges and enable new functionalities.

## Key findings

- Non-Hermitian systems exhibit phenomena like the skin effect, observed in semiconductor quantum Hall devices.
- Topological materials offer robust, energy-efficient electronic states resilient to disorder and perturbations.
- Integrating these principles may lead to fault-tolerant quantum computing and ultra-sensitive sensing platforms.

## Abstract

Semiconductors underpin modern technology, enabling applications from power electronics and photovoltaics to communications and medical diagnostics. However, the industry faces pressing challenges, including shortages of critical raw materials and the unsustainable nature of conventional fabrication processes. Recent developments in quantum computing and topological quantum materials offer a transformative path forward. In particular, materials exhibiting non-Hermitian physics and topological protection, such as topological insulators and superconductors, enable robust, energy-efficient electronic states. These states are resilient to disorder and local perturbations, positioning them as ideal candidates for next-generation quantum devices. Non-Hermitian systems, which break traditional Hermitian constraints, have revealed phenomena like the skin effect, wherein eigenstates accumulate at boundaries, violating bulk-boundary correspondence. This effect has recently been observed in semiconductor-based quantum Hall devices, marking a significant milestone in condensed matter physics. By integrating these non-Hermitian topological principles into semiconductor technology, researchers can unlock new functionalities for fault-tolerant quantum computing, low-power electronics, and ultra-sensitive sensing platforms. This convergence of topology, quantum physics, and semiconductor engineering may redefine the future of electronic and photonic devices.