Physicists reverse quantum time flow to charge batteries

10 Mwezi wa nne, 2026

Imeripotiwa na AI

Researchers at Los Alamos National Laboratory have developed a method to effectively reverse time in quantum systems, enabling energy harvesting for potential use in quantum batteries. The technique counteracts the effects of measurements on qubits, making systems appear to run backwards. This could turn measurements into a thermodynamic resource.

Luis Pedro García-Pintos and his colleagues at Los Alamos National Laboratory in New Mexico have found a way to mimic the reversal of time's arrow in quantum systems. By reverse-engineering the changes caused by measurements, they apply fields and control tools to undo these effects. “We apply fields and control tools on the system that can undo what is happening due to the measurements,” García-Pintos said. “If the measurement was going to push my system up, I can make it go back down. Because we’re able to counteract the effective measurements, we can produce trajectories that are more consistent with the process having been backwards than forward.”

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Quantum experiment reverses heat flow in qubits

Researchers in China have demonstrated heat flowing from cold to hot in a quantum system, potentially requiring updates to the second law of thermodynamics. Using a molecule as qubits, the team manipulated quantum information to achieve this reversal. The finding highlights differences between classical and quantum physics.

Researchers build fast-charging quantum battery in quantum computer

5 Mwezi wa pili, 2026 Imeripotiwa na AI

Scientists have created the first quantum battery integrated into a quantum computer using superconducting qubits. This experiment demonstrates faster charging through quantum interactions compared to classical methods. The development could pave the way for more efficient quantum technologies.

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Physicists create most complex time crystal in quantum computer

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University of Vienna tests indefinite causal order in quantum experiment

Physicists at the University of Vienna have conducted an experiment demonstrating a superposition of different temporal orders in quantum events, using entangled photons and a Bell inequality equivalent. The results deviate significantly from classical expectations, suggesting indefinite causal order is a fundamental quantum feature. However, several experimental loopholes remain open.

Researchers unlock efficient shortcut to quantum materials

22 Mwezi wa kwanza, 2026 Imeripotiwa na AI

A team of scientists has developed a new method to manipulate quantum materials using excitons, bypassing the need for intense lasers. This approach, led by the Okinawa Institute of Science and Technology and Stanford University, achieves strong Floquet effects with far less energy, reducing the risk of damaging materials. The findings, published in Nature Physics, open pathways to advanced quantum devices.

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