… Thus, if the kind of noise present in a communication channel (ie, the characteristics of the
… of decoy qubits required for implementation of schemes of secure quantum communication …

… Then we present a protocol for sending secure data using authenticated qubits. … e) In
this and the next items, we show security against multi-qubit emission attack. Suppose a qubit …

… twoqubit states, rather than the one-qubit states used in conventional schemes. In particular,
we consider the realistic situation in which one qubit … for direct secure communication, that is …

… secure quantum communication can be broadly divided in two classes: Class A: single-qubit-based
schemes which do not use … -state-based protocols, which use one or more entangled …

… Quantum communication is commonly described using qubits, the quantum analog of the
classical 0 or 1 bit. A qubit can have states |0〉 or |1〉, or superpositions of these two. For …

… performed in real time to produce information-theoretic secure keys for a 100 Gb s –1 line …
quantum secured communication system using feedback controls to stabilize the qubit phase …

… After measured a qubit by the controller, our five-qubit state becomes a direct couple of two
Bell states. Thus, it is easy to implement the bidirectional QT tasks. In our scheme, Alice may …

… using n-qubits. However, to ensure the secure transmission of those n-qubits, another 3n-qubits …
This is so because to ensure a secure communication of n qubits, an equal number of …

… 2, in each period control qubit and the suffix b represents Bob's control qubit. time, we do
secure communication before we transfer The suffix c represents the target qubit for transmitting …

… Similar to QKD, the security of our protocol is implied by “no-cloning” and “… using qubit
transmission and results in a more efficient protocol in terms of resources and communications. As …