Radiation Glitches in Quantum Computing: Overview

Quantum computing exploits quantum bits or qubits to perform computations beyond classical limits. However, radiation-induced errors, specifically single-event upsets caused by cosmic rays and background radiation, impose a fundamental constraint on qubit stability. Studies published in Nature Communications (2023) show qubit error rates increase by up to 0.1% per hour under cosmic radiation exposure. This degradation affects coherence times, with superconducting qubits’ decoherence reduced from 100 microseconds to 70 microseconds as per Physical Review Letters (2023). Such glitches limit the practical deployment and scalability of quantum systems.

Technical Nature of Radiation-Induced Errors

Radiation glitches stem from high-energy particles interacting with quantum hardware, causing transient faults known as single-event upsets (SEUs). These SEUs induce bit flips and phase errors in qubits, accelerating decoherence and operational errors. Shielding materials like lead or boron carbide reduce radiation-induced errors by approximately 40%, according to IEEE Quantum (2024). However, current quantum error correction (QEC) algorithms consume up to 90% of computational resources to mitigate these glitches (IEEE Transactions on Quantum Engineering, 2023), increasing overhead and limiting scalability.

• Superconducting qubits are most vulnerable due to their sensitivity to environmental noise.
• Cosmic rays and terrestrial background radiation are primary error sources.
• Space-based quantum hardware faces amplified radiation challenges, as seen in China’s Micius satellite experiencing 30% reduction in quantum key distribution efficiency (Chinese Academy of Sciences, 2022).

Legal and Institutional Framework Governing Radiation and Quantum Computing in India

No direct constitutional provisions govern quantum computing or radiation-induced errors. However, the Information Technology Act, 2000 regulates cybersecurity aspects relevant to quantum applications. The Atomic Energy Act, 1962 oversees radiation sources affecting quantum hardware environments. The National Quantum Mission (NQM), under the Department of Science and Technology (DST), aligns with India’s Science and Technology Policy, aiming to develop radiation-hardened quantum chips by 2027 (DST Annual Report, 2023).

• DST implements NQM focusing on research, error correction, and hardware resilience.
• Indian Institute of Science (IISc) Bangalore leads in quantum error correction research through its Quantum Information Science and Technology (QIST) division.
• International Telecommunication Union (ITU) sets global standards for quantum communication.
• NASA conducts radiation impact studies on quantum hardware in space, informing terrestrial mitigation strategies.

Economic Implications of Radiation-Induced Errors in Quantum Computing

The global quantum computing market was valued at USD 620 million in 2023 and is projected to reach USD 2.5 billion by 2030, growing at a CAGR of 22% (MarketsandMarkets, 2024). India allocated INR 8,000 crore (~USD 1 billion) under NQM (2023-2030) to boost quantum R&D. Radiation-induced errors increase operational costs by up to 15% due to the overhead of error correction algorithms (IEEE Transactions on Quantum Engineering, 2023), thereby impacting commercial viability and scalability.

• Increased error correction demands raise power consumption and hardware complexity.
• Investment in radiation shielding and hardware innovation is capital intensive.
• Failure to address radiation glitches may delay quantum computing commercialization.

Comparative Analysis: India, China, and the United States

Critical Gaps in Addressing Radiation Glitches

Most quantum computing initiatives emphasize algorithmic error correction but underestimate integrated hardware-level radiation shielding and environment control. This oversight leads to scalability bottlenecks and escalates operational costs. The reliance on software-level mitigation alone is insufficient given the physical nature of radiation-induced errors, necessitating a combined approach.

• Hardware shielding reduces error rates but adds weight and cost.
• Excessive computational resources diverted to error correction reduce usable qubit capacity.
• Environmental controls (cryogenic shielding, vacuum chambers) are costly and complex.

Way Forward: Tackling Radiation Glitches in Quantum Computing

• Accelerate development of radiation-hardened quantum chips integrating shielding materials at the hardware level.
• Enhance quantum error correction codes optimized for radiation-induced error patterns to reduce resource overhead.
• Invest in environmental control systems minimizing background radiation exposure in quantum laboratories.
• Promote international collaboration for space-based quantum communication to share radiation mitigation technologies.
• Align policy frameworks under NQM with atomic energy regulations to ensure safe radiation management around quantum hardware.

Jharkhand & JPSC Relevance

• JPSC Paper: Paper 3 – Science and Technology, Emerging Technologies
• Jharkhand Angle: IISc Bangalore’s collaborative projects with Jharkhand universities for quantum research capacity building.
• Mains Pointer: Highlight local research initiatives, government funding, and the strategic importance of quantum computing for Jharkhand’s IT and industrial sectors.