Quantum physics news, articles and features | Page 5 | New Scientist

Skip to content

Why it might be impossible to build a practical quantum computer

Physics

Why it might be impossible to build a practical quantum computer

After “quantum supremacy”, the next step is scaling up and mastering the errors that dog qubits. But some researchers reckon the noise might always to be too high for useful quantum computers

Features

Coloured transmission electron micrograph (TEM) of chloroplasts from the yellow portion of a yellow/green variegated Coleus blumei plant. Chloroplasts are the sites of photosynthesis, the process that synthesises carbohydrates from carbon dioxide and water using sunlight. The structure of a variegated chloroplast is slightly different from that of a normal green chloroplast. The granal stacks, formed from parallel thylakoids (membranes, bright lines), that contain the chlorophyll pigments are less ordered in the variegated chloroplast. The pigments themselves are also slightly different. Magnification: x14,300 when printed at 10cm wide.

Physics

From photosynthesis to navigation, life may exploit quantum effects

Features

What putting big things in quantum states can tell us about reality

Physics

What putting big things in quantum states can tell us about reality

Features

KRJ9F0 Quantum-Gravity-Photon-Race

Physics

Why is it so difficult to find a viable quantum theory of gravity?

Features

Is quantum theory really as random as it seems?

Physics

Is quantum theory really as random as it seems?

Features

Can quantum effects in the brain explain consciousness?

Physics

Can quantum effects in the brain explain consciousness?

Features

R42MA6 Advance of Quantum Wave

Physics

Quantum Darwinism: Can evolutionary theory explain objective reality?

Features

Do we distil reality from the quantum fog or does it exist without us?

Physics

Do we distil reality from the quantum fog or does it exist without us?

Features

This is what makes the quantum world so strange and confusing

Physics

This is what makes the quantum world so strange and confusing

Features

Q1: Photograph of the silicon quantum circuit being connected to a circuit board in preparation for measurement. (credit: Serwan Asaad)

Technology

Using microwave beams could let quantum computers be small but mighty

A decades-old theory to simplify silicon quantum processors has been shown to work, potentially paving the way for vastly more powerful quantum devices

News

Physics

Google researchers made a time crystal inside a quantum computer

News

Technology

Google demonstrates vital step towards large-scale quantum computers

News

Technology

China beats Google to claim the world's most powerful quantum computer

News

Technology

Quantum data link established between two distant Chinese cities

News