Nonlocal correlations that define quantum entanglement could be reconciled with Einstein’s theory of relativity if space–time had two temporal dimensions. That is the implication of new theoretical ...

Quantum teleportation, once a staple of sci-fi lore, is now edging closer to scientific fact. What seemed impossible a decade ...

European scientists have sent quantum-encrypted messages a record 254km using a traditional fibre optic cable network.

An exact expression for a key process needed in many quantum technologies has been derived by a RIKEN mathematical physicist ...