Issue 2

22 October 2026 | 5 papers

A trapped-ion processor runs error correction well below threshold
Quantum computers make mistakes. The fix is to spread each piece of information over many qubits, so that errors can be found and corrected.
Conveyor belts for qubits: a blueprint for fast, low-overhead error correction in silicon
Some of the most efficient ways to protect quantum information need qubits that sit far apart to compare notes.
An energy gap that keeps many-level spins squeezed together
Atomic clocks and magnetic sensors become more precise when their atoms are linked so that they act as one.
Building large "cat states" of light on demand, with feedback instead of luck
A cat state of light is a light wave that is in two very different states at once, named after Schrödinger's famous cat.
Who is allowed to forget? Entanglement as the key to erasing a quantum memory cheaply
Wiping a memory always costs a little energy. That is a basic law of physics. Whoever holds a partner particle linked to the memory can wipe it more cheaply than anyone else.