Un estudio explora relojes cuánticos que avanzan a múltiples velocidades

18 de mayo de 2026

Reportado por IA

Un grupo de físicos ha publicado una investigación que propone que un mismo reloj podría avanzar tanto más rápido como más lento al mismo tiempo debido a efectos cuánticos. El trabajo combina la relatividad y la mecánica cuántica de una forma novedosa. Los investigadores señalan que los avances en la tecnología de relojes atómicos podrían permitir pronto poner a prueba esta idea en el laboratorio.

Un artículo publicado el 20 de abril de 2026 en Physical Review Letters describe la posibilidad de que existan relojes en superposición cuántica. El profesor adjunto Igor Pikovski, del Stevens Institute of Technology, dirigió el estudio junto con colaboradores de la Colorado State University y del National Institute of Standards and Technology. La investigación se basa en ideas anteriores de hace más de una década que resultaban demasiado sutiles para ser observadas en su momento.

MIT builds terahertz microscope to observe quantum motions in superconductors

18 de marzo de 2026 Reportado por IA Imagen generada por IA

Physicists at MIT have developed a new microscope using terahertz light to directly observe hidden quantum vibrations inside a superconducting material for the first time. The device compresses terahertz light to overcome its wavelength limitations, revealing frictionless electron flows in BSCCO. This breakthrough could advance understanding of superconductivity and terahertz-based communications.

Physicists uncover tiny flaw in time from quantum collapse models

An international team of physicists has found that quantum collapse models, potentially linked to gravity, introduce a minuscule uncertainty in time itself. This sets a fundamental limit on clock precision, though far below current detection levels. The research, published in Physical Review Research, explores ties between quantum mechanics and gravity.

Chinese optical clock reaches 10^{-19} precision level

21 de marzo de 2026 Reportado por IA

Chinese scientists have developed an optical clock with stability and uncertainty both surpassing 10^{-19}, a level achieved by only a handful of top global labs. The achievement, published in Metrologia, could position China to lead efforts in redefining the second.

Tecnología

Physicists reverse quantum time flow to charge batteries

Tecnología

University of Vienna tests indefinite causal order in quantum experiment

Tecnología

Australian scientists demonstrate world's first quantum battery prototype

Quantum systems exhibit memory depending on perspective, scientists find

An international team of researchers has discovered that quantum systems can appear memoryless from one viewpoint while retaining memory from another. The finding, based on Schrödinger and Heisenberg pictures, reveals hidden memory effects in quantum dynamics. This could impact the design of quantum technologies.

Scientists teleport photon state across 270 meters

1 de mayo de 2026 Reportado por IA

An international team of researchers has achieved a milestone in quantum communication by teleporting the polarization state of a single photon between two separate quantum dots over a 270-meter open-air link. The experiment, conducted at Sapienza University of Rome, demonstrates the potential for quantum relays in future quantum networks. The findings were published in Nature Communications.

14 de mayo de 2026 19:59