What quantum entanglement swapping does — entangles particles that have never directly interacted

What the Aspect experiments confirmed — Bell inequality violations prove quantum nonlocality is real

Aspect experiments demonstrated quantum entanglement's nonlocality, violating Bell's inequalities

What the EPR paradox challenged — Einstein argued entanglement implied either hidden variables or nonlocality

EPR paradox questioned quantum mechanics' lack of locality and determinism

What the no-cloning theorem prohibits — making an exact copy of an arbitrary unknown quantum state

The no-cloning theorem forbids creating identical copies of an arbitrary unknown quantum state

What the Pauli exclusion principle forbids — two identical fermions from occupying the same quantum state

Pauli exclusion principle prohibits two identical fermions from sharing the same quantum state simultaneously

What the measurement problem asks — why does a quantum superposition collapse to a definite state upon observation

Quantum measurement problem: Superposition collapses due to observer interaction

What the Higgs field does — permeates all space, gives mass to fundamental particles through coupling

The Higgs field permeates space, endowing particles with mass via interaction