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Theoretical Physics

Artist’s impression of a warp bubble collapse (AI)

Gravitational Waves from Failed Warp Drives: A New Frontier in Space Exploration

Comparison between CMB data resolution collected by Planck and SPT-3G

Cosmologists Grapple with Growing Tension in Understanding Universe’s Expansion

Dynamical friction. The panels depict sparse areas of the universe with dark colour and dense areas with light colour. The upper panels show the density around a galaxy if the galaxy's gravity bends (left) or does not bend (right) the trajectories of dark matter particles. The lower panel shows the difference between them, or how the galaxy affects the distribution of dark matter. The arrows represent the acceleration caused by the overdensity behind the galaxy, from which the friction on the centre of the galaxy is deducted. Since the arrows have different directions and strengths in different areas, the tidal forces are able to change the shape of a galaxy.

Lopsided galaxies shed light on the speed of dark matter

Researchers have discovered Pines' demon, a collection of electrons in a metal that behaves like a massless wave.

Demon Hunting: Physicists confirm 67-year-old prediction of massless, neutral composite particle

Vacuum chamber containing the atom chip

Paradoxical quantum phenomenon measured for the first time

When a quantum liquid is heated, crystalline structures can appear.

Quantum liquid becomes solid when heated

A new collaboration aims to push the boundaries of knowledge about the fundamental character of four-dimensional space-time. (Composite: Rhiannon Montelius. Image Sources: Unsplash and PxHere.)

Unlocking the Secrets of a 4D Cosmos

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