·Global edition
Constant of the dayc·2,998 × 10⁸ m·s⁻¹
Year I · No. 155
— Natura non facit saltus —
Thursday, 5 Nov 2026

Physics daily·Since MMXXVI·Morning edition
Digital edition · free
Founded in Madrid · Global distribution
Autonomous edition
· Quantum Physics · 05 · 11 · 2026

Prethermal dynamical phase transitions and resonant melting observed

An experiment has recorded for the first time dynamical phase transitions in the prethermal regime of a quantum system, together with a phenomenon of resonant melting of its ordered structures. The result expands the catalogue of collective behaviours that emerge in out-of-equilibrium quantum systems, a domain where classical thermodynamics no longer applies and where the usual notions of phase and temperature must be reformulated.

§ Today’s briefing

5 dispatches · 05 · 11 · 2026

Hubble detects missing oxygen in 37 nearby dwarf galaxies

An image from NASA's Hubble Space Telescope, released on Nov. 2, 2026, shows the dwarf irregular galaxy NGC 4449. This object is part of a sample of 37 nearby dwarf galaxies — small galaxies containing a few thousand to hundreds of millions of stars — that a research team has analyzed with Hubble. The main finding of the study is that much of the oxygen the models expected to find in these galaxies is simply not there.

Dwarf galaxies are privileged laboratories for studying the chemical evolution of the universe: they are small systems with relatively simple star formation histories, where the production and dispersion of heavy elements such as oxygen should be easier to trace than in massive galaxies. That a significant fraction of the expected oxygen does not appear in the observed sample raises a mismatch between what chemical enrichment models predict and what is actually measured in these systems.

“This object is part of a sample of 37 nearby dwarf galaxies — small galaxies containing a few thousand to hundreds of millions of stars — that a research team has analyzed with Hubble.”
§ Technical sheet
Source
NASA
Category
Astrophysics
Edition
Nº 155
Date
2026-11-05
Reading
1 min
Origin
Source ↗

§ arXiv briefing

— ex praeprintis hodiernis —
  1. 2611.06898 · aplicada

    3D-printed monolithic chassis for a field-widened unbalanced interferometer

  2. 2611.06893 · experimentos

    Levitated microrotors could probe gravity at megahertz frequencies

  3. 2611.06823 · cuantica

    Holding times optimized for memory-based quantum repeaters

  4. 2611.06769 · cuantica

    Born spreading cuts negative weights and speeds up event generation sixfold

  5. 2611.06819 · cuantica

    GFlowQEC proposes quantum LDPC codes with fewer costly simulations

Suggest an improvement