51¶¯Âþ

quantum physics

Physics

'Dark photon' theory of light aims to tear up a century of physics

One of the most famous findings in physics could be wrong – the double-slit experiment was long thought to confirm that light can be a wave, but its results can be fully explained using only quantum particles

51¶¯Âþ

Technology

Hackers could 'vandalise' quantum computers without people noticing

51¶¯Âþ

Physics

Ultra-secure quantum data sent over existing internet cables

51¶¯Âþ

Technology

We can build quantum computers using the rules of special relativity

51¶¯Âþ

Technology

Quantum batteries could make quantum computers more efficient

51¶¯Âþ

Physics

LHC breaks the record for heaviest antimatter nucleus ever seen

51¶¯Âþ

Technology

Quantum GPS can help planes navigate when regular GPS is jammed

51¶¯Âþ

Technology

A classic hacking technique works on some quantum computers

51¶¯Âþ

Abstract prism of light references quantum properties

Video

Five physicists discuss the achievements and future of quantum theory

Video

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.

Physics

Quantum theory at 100: Let’s celebrate its power and provocation

Quantum theory started with a bout of hay fever, and went on to transform our view of the universe – but its legacy isn't complete

Leader

Physics

Why I still love reckoning with the quantum gravity problem

Comment

Physics

Where exactly does the quantum world end and concrete reality begin?

Features

Physics

Could the ancient Greeks have invented quantum theory?

Features

Physics

What exactly would a full-scale quantum computer be useful for?

Features

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop