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quantum gravity

Physics

Time can move both forwards and backwards at the quantum scale

Physicists use mathematical assumptions in many situations that forbid time from moving backwards – but that isn’t necessarily a reflection of quantum reality

News

Technology

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

News

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

News

Futuristic battery

Technology

Quantum batteries charge faster the larger they are

News

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

News

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

News

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

Technology

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

Hundreds of quantum computing firms around the world are racing to commercialise these once-exotic devices, but the jury is still out on who is going to pull ahead and produce a machine that actually does something useful

News

Technology

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

News

Physics

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

News

Physics

Experiment with 37 dimensions shows how strange quantum physics can be

News

Technology

Quantum-inspired algorithm could enable better weather forecasts

News

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