A node for quantum computing that uses two different species of ion has been unveiled by Chris Monroe and colleagues at the University of Maryland in the US. The system uses a barium ion to ...

Scientists in the Netherlands have made a major step towards quantum computer networks by teleporting quantum information between two nodes without a direct link to each other. The breakthrough ...

Bitcoin nodes independently validate transactions and enforce shared rules without a central authority. Proof-of-work converts energy expenditure into a measurable coordination mechanism. Miners ...