Hydrogen and Antihydrogen Weave into a New Particle ✛

Original: "Hiding in Plain Sight, the electroweak $$\eta_W$$"
arXiv:2509.15912 · 2025-09-19 · CC BY 4.0 · 1 min
Scientists have shown that a strange state in the Standard Model is made of familiar atoms.

Hydrogen and its antipode — antihydrogen, discovered by Paul Dirac in 1931, annihilate each other on contact, flashing radiation. But in the quantum world, something else is possible. If two such antipodes are bound into a common structure, they don't perish but form a new object — a quantum 'vortex'.

The basis is the ability of space in the Standard Model to bend and form stable knots. Thanks to this, водород and antihydrogen with opposite mirror properties (like left and right) combine into one state. No new particle is needed — everything is built from ordinary atoms.

This blurs the line between particle physics and atomic physics. And the most thrilling part: such 'vortices' could be the key to the nature of dark matter — the invisible substance that governs galaxies.

Under normal conditions, hydrogen and antihydrogen instantly turn into energy. But in this state, they coexist without annihilation.

In science fiction, antimatter is explosive fuel. Yet this work suggests that antimatter can peacefully coexist with ordinary matter.

\eta_W = -\frac{i}{\sqrt{2}} \left( \Psi_H^{1s,0} - \Psi_{\bar{H}}^{1s,0} \right)
Defines the state ηW as an antisymmetric superposition of the wave functions of hydrogen and antihydrogen.
\phi_H = \frac{1}{\sqrt{2}} \left( \Psi_H^{1s,0} + \Psi_{\bar{H}}^{1s,0} \right)
Defines the CP-even partner of ηW.
Scientists
Niels BohrPascual JordanWerner HeisenbergEmmy NoetherWolfgang PauliEnrico Fermi
Concepts
pseudogap hidden particle decay topological surface states insulating state antihydrogen state pair density wave electron pairing Standard Model neutron eta meson electron energy state phantom dark energy electron liquid hidden quantum entanglement false vacuum new physics two level system wigner crystal