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Quantum Mechanics
If atoms are mostly empty space, then why can't two objects made of atoms simply pass through each other? Quantum physics explains why.
Our classical intuition is no good in a quantum Universe. To make sense of it, we need to learn, and apply, an entirely novel set of rules.
LHC scientists just showed that spooky quantum entanglement applies to the highest-energy, shortest-lived particles of all: top quarks.
Within our observable Universe, there's only one Earth and one "you." But in a vast multiverse, so much more becomes possible.
By focusing on the role of human experience, we may uncover new insights on the fundamental structure of reality.
Researchers at the Brookhaven National Laboratory recently created the heaviest exotic antimatter hypernucleus ever observed.
No matter how good our measurement devices get, certain quantum properties always possess an inherent uncertainty. Can we figure out why?
Quarks and leptons are the smallest known subatomic particles. Does the Standard Model allow for an even smaller layer of matter to exist?
A recent paper in the journal Physical Review Letters claims to prove that a "kugelblitz" is not possible.
A longstanding mismatch between theory and experiment motivated an exquisite muon measurement. At last, a theoretical solution has arrived.
The passage of time is something we all experience, as it takes us from one moment to the next. But could it all just be an illusion?
The properties of a ghostly particle called a neutrino are coming into focus.
The evolution of quantum technology is far from over.
Scientists are searching for dark matter particles that are trillions or even quadrillion times lighter than the more traditional searches.
Holograms preserve all of an object's 3D information, but on a 2D surface. Could the holographic Universe idea lead us to higher dimensions?
Discover how Quantum Bayesianism challenges traditional quantum mechanics by focusing on the role of the observer in creating quantum reality.
Practically all of the matter we see and interact with is made of atoms, which are mostly empty space. Then why is reality so... solid?
If the electromagnetic and weak forces unify to make the electroweak force, maybe, at higher energies, something even grander happens?
No matter how good our measurement devices get, certain quantum properties always possess an inherent uncertainty. Can we figure out why?
Lord Kelvin is thought to have said there was nothing new to discover in physics. His real view was the opposite.
Physicists just can't leave an incomplete theory alone; they try to repair it. When nature is kind, it can lead to a major breakthrough.
Symmetries aren't just about folding or rotating a piece of paper, but have a profound array of applications when it comes to physics.
Everything acts like a wave while it propagates, but behaves like a particle whenever it interacts. The origins of this duality go way back.
Discrepancies between observations and theory regarding subatomic particles called muons may force scientists to rethink the quantum world.
Explore how QBism reframes science by placing the observer at the heart of quantum reality.
In the very early Universe, practically all particles were massless. Then the Higgs symmetry broke, and suddenly everything was different.
The term "zero-point energy" has at least two meanings, one that is innocuous and one that is a great deal sexier (and scammier).
All matter particles can act as waves, and massless light waves show particle-like behavior. Can gravitational waves also be particle-like?
The combined intellectual heft of multiple “big thinkers” delivered arguably the most successful scientific theory in history.
There's a quantum limit to how precisely anything can be measured. By squeezing light, LIGO has now surpassed all previous limitations.