Estudo explora relógios quânticos que marcam o tempo em múltiplas velocidades

18 de maio de 2026

Reportado por IA

Físicos publicaram uma pesquisa propondo que um único relógio poderia marcar o tempo tanto mais rápido quanto mais devagar ao mesmo tempo devido a efeitos quânticos. O trabalho combina relatividade e mecânica quântica de uma forma inovadora. Pesquisadores afirmam que avanços na tecnologia de relógios atômicos podem permitir, em breve, que a ideia seja testada em laboratório.

Um artigo publicado em 20 de abril de 2026 no Physical Review Letters descreve a possibilidade de relógios existirem em superposição quântica. O professor assistente Igor Pikovski, do Stevens Institute of Technology, liderou o estudo com colaboradores da Colorado State University e do National Institute of Standards and Technology. A pesquisa baseia-se em ideias anteriores de mais de uma década atrás que, anteriormente, eram sutis demais para serem observadas.

MIT builds terahertz microscope to observe quantum motions in superconductors

18 de março de 2026 Reportado por IA Imagem gerada 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 março 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.

Tecnologia

Physicists reverse quantum time flow to charge batteries

Tecnologia

University of Vienna tests indefinite causal order in quantum experiment

Tecnologia

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

01 de maio 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.

quinta-feira, 14 de maio de 2026, 19:59h