Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …

Quantum technology is an emergent and potentially disruptive discipline, with the ability to
affect many human activities. Quantum technologies are dual-use technologies, and as such …

Quantum secure direct communication is an important mode of quantum communication in
which secret messages are securely communicated directly over a quantum channel …

Quantum key distribution (QKD) is the first quantum information task to reach the level of
mature technology, already fit for commercialization. It aims at the creation of a secret key …

A protocol for quantum secure direct communication using blocks of Einstein-Podolsky-
Rosen (EPR) pairs is proposed. A set of ordered N EPR pairs is used as a data block for …

Quantum secure direct communication is the direct communication of secret messages
without first producing a shared secret key. It may be used in some urgent circumstances …

Single-photon detectors (SPDs) are the most sensitive instruments for light detection. In the
near-infrared range, SPDs based on III–V compound semiconductor avalanche photodiodes …

A protocol for quantum secure direct communication with quantum superdense coding is
proposed. It combines the ideas of block transmission, the ping-pong quantum secure direct …

Communication security has to evolve to a higher plane in the face of the threat from the
massive computing power of the emerging quantum computers. Quantum secure direct …