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Technology

Why haven't we got useful quantum computers yet?

Four years after Google first demonstrated the supremacy of quantum computers over ordinary ones, why aren't these exotic machines being used for practical problems?

News

Physics

Physicists create bizarre quantum Alice rings for the first time

News

IBM Quantum scientist Dr. Maika Takita in the Thomas J Watson Research Center IBM Quantum Lab.

Technology

IBM has just made error correction easier for quantum computers

News

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Physics

Why Isaac Newton's laws still give physicists a lot to think about

Comment

From time crystals to wormholes: When is a quantum simulation real?

Physics

From time crystals to wormholes: When is a quantum simulation real?

Features

Does space-time remember? The search for gravitational memory

Space

Does space-time remember? The search for gravitational memory

Features

Newton’s first law says that objects move at constant speeds until a force affects them

Physics

Newton’s first law appears to break down in the quantum realm

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Five of the biggest unanswered questions about the proton

Physics

Five of the biggest unanswered questions about the proton

Features

Physics

Quantum randomness of empty space can be controlled with a laser

News

Technology

Record-breaking number of qubits entangled in a quantum computer

A group of 51 superconducting qubits have been entangled inside a quantum computer, not just in pairs but in a complex system that entangles each qubit to every other one

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Technology

Quantum twist on common computer algorithm promises useful speed boost

News

Physics

Quantum lidar could help driverless vehicles spot bright objects

News

Space

We must address a key obstacle to our new age of space exploration

Comment

Physics

Rethinking reality: Is the entire universe a single quantum object?

Features