Abstract :
We analyze the quantum adder channel, i.e. the extension of a classical multiple-access additive binary channel to the quantum regime, in which quantum bits (qubits) rather than classical bits are transmitted. Quantum entanglement between different transmitters and/or the receiver results in a significant expansion of the capacity region of the channel, in comparison with its classical counterpart, a property which can be used, e.g., to considerably improve bandwidth efficiency of fiber communication networks in the future
Keywords :
channel capacity; multi-access systems; optical fibre communication; quantum communication; additive binary channel; bandwidth efficiency; classical capacity; optical fiber communication networks; quantum adder channel; quantum bits; quantum entanglement; quantum multiple-access channel; qubits; Clocks; Neural networks; Paramagnetic resonance; Quantum dots; Quantum entanglement;