17 November 2021
The one-way flow of time is one of the great mysteries of physics. It might be that we see causes and effects just because our information about reality is incomplete
17 November 2021
Quantum theory is peerless at explaining reality, but assaults our intuitions of how reality should be. It seems likely the fault lies with our intuitions
3 November 2021
We like to think that things are there even when we aren't looking at them. But that belief might soon be overturned thanks to a new test designed to tell us if quantum weirdness persists in macroscopic objects
25 August 2021
Quantum theory can’t be the final answer and some theorists are exploring new ways to formulate physical laws – and yet there is no guarantee that any theory can completely describe the universe
25 August 2021
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
25 August 2021
There is tantalising evidence to suggest that photosynthesis in some bacteria depends on quantum coherence and birds’ amazing feats of navigation rely on entanglement
25 August 2021
In principle, there should be no limit on how large objects can get and still display quantum behaviour like superpositions. Physicists testing the idea hope to reveal clues about quantum gravity
25 August 2021
The way we calculate the properties of subatomic particles with quantum theory goes haywire when it comes to hypothetical particles of gravity, but there may be a clever workaround
25 August 2021
The maths suggests the reality we get from quantum probabilities is random, but there might be some hidden determinism at play – or perhaps the present can influence the past
25 August 2021
New research reveals hints of quantum states in tiny proteins called microtubules inside brain cells. If the results stand up, the idea that consciousness is quantum might come in from the cold
