Quantum Systems

Researchers are reporting advances in quantum energy teleportation, a protocol allowing energy extraction using quantum correlations, and discussions are turning to possible applications beyond physics, including market mechanisms and gaming. The idea suggests that energy information could be transferred over short distances in quantum systems, raising questions about how such effects might be harnessed or simulated commercially.

Researchers have described quantum error-correcting codes that remain effective even when qubits are lost or unexpectedly added to a system, a common problem in real quantum hardware. The work suggests more robust protection for quantum information against fluctuating qubit numbers, a persistent obstacle in building reliable quantum computers.

Researchers have proposed a new statistical ensemble describing how fermions reach thermal equilibrium. The work refines how physicists model thermalisation in many-particle quantum systems, where fermions such as electrons obey the Pauli exclusion principle and standard ensembles can fall short. The development is being noted in the physics community as a useful theoretical step, though details of the study and peer reception remain limited.

Discussion is growing around the idea that quantum-like states may play a meaningful role in living systems, overturning the cautionary picture painted by Jurassic Park about mixing nature and technology. Commenters point to potentially illuminating parallels between the living world and the quantum realm, suggesting biology and quantum phenomena could be compatible after all, though the post offers little concrete detail on the underlying research.

A new physics study reports that decoherence — the process by which quantum systems lose coherence through interaction with their environment — suppresses quantum tunneling in a cosmological context. The finding suggests tunneling effects may be far weaker in the early universe than idealized quantum models predict, with potential implications for theories of cosmic inflation and phase transitions in the early cosmos.

The US National Security Agency has announced new post-quantum cryptography measures intended to protect national security systems from future quantum computing threats. The move reflects growing concern that quantum computers could eventually break current encryption, prompting agencies and contractors to begin migrating to quantum-resistant algorithms.

In Latvia, Russia policy has moved to the centre of election campaigning, with parties staking out positions amid continued regional concern over Moscow. Separately, German drone maker Quantum Systems has acquired an aircraft developer, expanding its capabilities in the fast-growing European defence and uncrewed aviation sector. Both stories point to heightened attention on security and the defence industry across Europe.

NATO is looking to expand its investment in quantum technology for defense systems, according to a Forbes report. The move reflects the alliance's broader push to keep pace with emerging technologies that could affect military communications, sensing and computing. Quantum capabilities are increasingly viewed as strategically important amid heightened global security competition.

Researchers report a new method for generating photons that are nearly indistinguishable from one another, a key requirement for quantum communication technologies such as quantum key distribution and quantum networks. The advance is being reported in physics and photonics circles as a step toward more reliable quantum information systems.

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.

The NSA is highlighting that today's cryptographic solutions offer limited protection compared with new quantum-resistant algorithms, which are being developed to withstand attacks from future quantum computers. The message underscores ongoing efforts to migrate government and industry systems to post-quantum encryption before quantum capabilities mature.