Breaking Communication Barriers: Terahertz Topological Insulators for Chip Integrated Wireless Networks

The relentless growth in data-intensive applications has driven the demand for ultra–high- bandwidth, low-latency communication systems that surpass the limitations of conventional electronic interconnects. Terahertz (THz) wireless technology, operating within the 0.1–10 THz frequency band, has emerged as a promising candidate for enabling chip- integrated wireless networks. However, severe propagation losses, scattering, and fabrication-induced imperfections hinder its practical implementation. This study investigates the integration of topological insulators (TIs) and topological photonic structures to overcome these challenges by exploiting their topologically protected surface and edge states for robust THz wave propagation. The proposed platform enables defect- immune, low-loss THz signal transport and efficient chip- to-chip communication through on-chip topological waveguides and antennas. Simulation and theoretical analyses demonstrate that such architectures can significantly enhance signal integrity, reduce crosstalk, and support terabit-per-second (Tbps) data rates in highly miniaturized environments. The convergence of THz technology and topological photonics establishes a pathway toward next-generation chip-scale wireless networks and energy-efficient high-performance computing systems, breaking fundamental communication barriers at the nanoscale.