Quantum Channel Capacities
A quantum channel is a medium or method for transmitting quantum information—like qubits—from one place to another. You can think of it like a telephone line or internet cable, but….
Tag: classical capacity
Holevo Bound
In classical communication, if you send a message—say a letter or a digital bit—the receiver gets the full message. If you send 1 bit, the receiver gets 1 bit of….
Quantum Channel Capacities
Quantum channels form the backbone of quantum communication. Whether it’s distributing entanglement, transmitting qubits, or sending classical information securely, the capacity of a quantum channel tells us how much information….