Quantum Mechanics
Nobel prize in physics 2025 awarded to quantum physicists
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John Clarke, Michel H. Devoret, and John M. Martinis receive the 2025 Nobel Prize in Physics for experiments demonstrating quantum tunneling in macroscopic circuits. Their mid-1980s work laid the foundation for superconducting quantum computers. The laureates expressed great surprise at the award.
Physicists have shown that the key signatures of string theory can arise naturally from a handful of simple rules about particle behavior at extreme energies. Researchers from Caltech, New York University, and a Barcelona institute reached this result using a bootstrap approach that starts with minimal assumptions rather than presupposing strings. The work has been accepted for publication in Physical Review Letters.
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Physicists have published research proposing that a single clock could tick both faster and slower at the same time due to quantum effects. The work combines relativity and quantum mechanics in a novel way. Researchers say advances in atomic clock technology may soon allow the idea to be tested in the lab.
Scientists from Spain and Italy have proposed a model that replaces cosmic inflation with gravitational waves as the key force in the universe's early formation. Published in Physical Review Research, the study suggests gravity and quantum mechanics alone can explain the cosmos's structure. This approach draws on a century-old concept linked to Albert Einstein's work.
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Researchers at the University of Cambridge have discovered a quantum phenomenon in an organic semiconductor, enabling highly efficient light-to-electricity conversion. This breakthrough, involving Mott-Hubbard behavior in the molecule P3TTM, could lead to simpler, cheaper solar panels made from a single material. The finding connects to foundational physics from a century ago and marks the 120th anniversary of physicist Sir Nevill Mott's birth.