Quantum communication network

A node for a quantum communication network, said node comprising:a quantum transmitter, said quantum transmitter being adapted to encode information on weak light pulses;a quantum receiver, said quantum receiver being adapted to decode information from weak light pulses;at least three ports adapted to communicate with at least one other node; andan optical switch,said optical switch being configured to selectively connect the quantum transmitter and receiver to the ports such that the switch controls which of the ports is in communication with the quantum transmitter and quantum receiver.