"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Quantum mechanics and classical physics don’t always get along, and can sometimes form apparent paradoxes ...

For over a century, quantum mechanics has challenged our established notions of physics. At its core are questions that unsettle our understanding of the universe: when does a quantum particle ...

Quantum mechanics has always had a way of making even the sharpest minds stop and scratch their heads. In the everyday world, you expect objects to follow straightforward rules. A ball thrown into the ...

A new Swinburne study is addressing a core paradox: if quantum computing is solving problems that cannot be checked by conventional methods, how can we be certain the results are correct? Quantum ...

Convention has it that quantum mechanics and thermodynamics cannot be true simultaneously – so say scientists at the University of Twente (“UT”), The Netherlands. But now, in a new journal paper, UT ...

Artist view of a black hole ringing down into a stable state. Credit: Yasmine Steele at University of Illinois–Urbana Champaign Artist view of a black hole ringing down into a stable state. Credit: ...

Fundamental physics faces a stubborn paradox: the current impossibility of reconciling the rules of the quantum world with ...

Quantum theory is a mind-bending idea, suggesting that, at the subatomic level, particles can exist in multiple states at the same time. Scientists often give the example of physicist Erwin ...

That quantum mechanics is a successful theory is not in dispute. It makes astonishingly accurate predictions about the nature of the world at microscopic scales. What has been in dispute for nearly a ...

In late 2025, rumors of US government equity stakes in quantum firms triggered double-digit rallies. The WisdomTree Quantum ...

In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of ...