Quantum mechanics, the theory that governs the subatomic world, rests on a persistent paradox. It describes particles that ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." During the 20th century, researchers pushed the frontiers of science further than ever before with ...

“This retroactive idea. It has to be that,” says Nobel Prize-winning mathematical physicist Sir Roger Penrose, reflecting on a problem about the building blocks of reality that has dogged physics for ...

Quantum mechanics suggests that particles can be in a state of superposition - in two states at the same time - until a measurement take place. Only then does the wavefunction describing the particle ...

Quantum collapse models represent a class of theoretical modifications to standard quantum mechanics that seek to resolve the long‐standing measurement problem. They posit that the linear evolution of ...

Einstein agreed. Physicists have proposed many solutions to this puzzle, including that there is never a collapse and, instead, a new Universe is spawned every time a particle is in two places at once ...

During the 20th century, researchers pushed the frontiers of science further than ever before with great strides made in two very distinct fields. While physicists discovered the strange ...