Long description

This is a table with columns detailing applications, benefits and space application for the rows of quantum key distribution (QKD) using single and entangled photons, quantum state teleportation (QST), quantum dense coding (QDC) and quantum communication complexity (QCC). The benefits of QKD are unconditional security and the detection of the eavesdropper; the benefits of QST are the transfer of quantum information without disturbing the quantum information but with the speed of light limit for classical information; the benefit of QDC is the higher channel capacity; the benefit of QCC is higher efficiency. The space applications of QKD are secure access to a satellite, secure communications between gateways or ground stations and secure satellite-to-satellite communication; the space applications of QST are quantum telecomputation for deep space missions and global distribution of quantum entanglement and global quantum networks; the space applications of QDC are satellite communications and deep space missions; the space application of QCC is deep space missions.