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Physicist Ethan Siegel argues that quantum fields have a strong claim to physical reality because they carry energy, producing measurable effects across the universe. Writing on Big Think, he places the question in the wider debate over what counts as real in quantum physics, such as whether the wavefunction or eigenstates exist independently of measurement.

A discussion led by Amit Dubey is examining whether artificial intelligence combined with quantum computing could pose a threat to humanity. The conversation touches on how quantum machines might dramatically accelerate AI capabilities, and what safeguards would be needed. Interest in the topic reflects broader public debate about advanced AI safety and the unpredictability of emerging quantum technologies.

Russian influence and security policy have become a central theme in Latvia's election campaign, with parties staking out positions on ties to Moscow and regional defence. In related European defence news, German drone maker Quantum Systems has acquired an aircraft developer, expanding its aerospace capabilities amid growing demand for military drones in the region.

Cloudflare announced on Tuesday that it plans to issue quantum-proof TLS certificates, becoming one of the first certificate authorities to adopt cryptography designed to withstand attacks from quantum computers. The move addresses fears that future quantum machines could break today's encryption, exposing data collected now and decrypted later. Observers see it as a significant step in the industry's transition to post-quantum security.

A new study suggests that decoherence—the process by which quantum systems lose coherence through interaction with their environment—suppresses quantum tunneling on cosmological scales. The finding could reshape how physicists model early-universe dynamics, where tunneling played a role in events such as vacuum transitions. Researchers say the work bridges quantum and gravitational physics, though details of the study's methodology and peer review status remain limited.

Shor's algorithm, a quantum algorithm for finding the prime factors of an integer, was developed in 1994 by American mathematician Peter Shor. Its theoretical existence has driven a global shift toward post-quantum cryptography, as a sufficiently powerful quantum computer running it could break widely used encryption methods such as RSA that protect much of today's digital communication.

The American Physical Society has highlighted new research using quantum light to probe how solvents influence molecular behaviour. The technique reportedly allows scientists to observe solvent effects on molecules with greater sensitivity than conventional light-based methods. Details of the study, its authors and its specific findings have not been widely reported yet, so it remains unclear how significant the advance is for chemistry and materials research.

Charles Black is leading research at the Co-design Center for Quantum Advantage (C2QA) focused on building scalable quantum computing systems. The effort is part of a US national quantum initiative aimed at overcoming hardware barriers that currently limit the size and reliability of quantum computers. Further details of the research's findings and timeline have not been disclosed.

Researchers report a structural guide to unusual magnetism in quantum materials, a finding that could help explain how atomic arrangement produces exotic magnetic behaviour. The work may aid the design of future quantum technologies, though detailed results and the institutions involved were not specified in available reports.