Author(s): Klaus Richter

Theorists find a persistent signature of a chaotic quantum system’s initial state, implying a memory effect—called a quantum birthmark—that resists thermodynamic equilibration.

[Physics 19, 125] Published Thu Sep 10, 2026

Author(s): Michael Schirber

A crystal with special geometric properties can be optically driven to produce an output beam with any desired polarization.

[Physics 19, s113] Published Thu Sep 10, 2026

Author(s): Charles Day

Researchers crushed and heated ice between diamond anvils to confirm the existence of a phase of ice that could be present in the warm mantles of ice giants.

[Physics 19, s111] Published Wed Sep 09, 2026