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quantum gravity

Technology

Microsoft has a new quantum computer – but does it actually work?

Researchers at Microsoft say they have created so-called topological qubits, which would be exceptionally resistant to errors, but their claim has been met with scepticism

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When did time begin? Hint: It wasn’t at the big bang

Space

When did time begin? Hint: It wasn’t at the big bang

Features

Technology

China launches hunt for ways to protect data from quantum computers

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Futuristic battery

Technology

Quantum batteries charge faster the larger they are

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Quantum computer circuitry illustration. Conventional computers store information as 'bits', with each transistor holding either a 1 or a 0. Quantum computers use quantum bits, or qubits, which operate according to two principles of quantum physics. One of the principles, supposition, allows a qubit to store a 1 and a 0 at the same time. This means two qubits can hold four values at once. The second principle, entanglement, means that the state of one qubit can depend on the state of another. As you expand the number of qubits, the machine becomes exponentially more powerful.

Technology

Why AI firms should follow the example of quantum computing research

Leader

Technology

Cybersecurity experts fear Elon Musk's DOGE may enable quantum hackers

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Technology

Why quantum computers are being held back by geopolitical tussles

Analysis

Technology

How the megaquop machine could usher in a new era of quantum computing

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Quantum computers have finally arrived, but will they ever be useful?

Technology

Quantum computers have finally arrived, but will they ever be useful?

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Technology

How PsiQuantum plans to build world's largest quantum computer by 2027

With an investment of AU$1 billion, PsiQuantum is planning to build a photonic quantum computer with a million qubits, far larger than any in existence today - and the firm says it will be ready in just two years

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Physics

The 100-year-old symmetry theorem that is still changing physics today

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Physics

Experiment with 37 dimensions shows how strange quantum physics can be

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Technology

Quantum-inspired algorithm could enable better weather forecasts

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Physics

A new kind of hidden black hole may explain the mystery of dark energy

Features

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