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 …

Quantum key distribution (QKD) constitutes a symmetric secret key negotiation protocol
capable of maintaining information-theoretic security. Given the recent advances in QKD …

Driven by the rapid progress in quantum hardware, recent years have witnessed a furious
race for quantum technologies in both academia and industry. Universal quantum …

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 …

The recent launch of the Micius quantum-enabled satellite heralds a major step forward for
long-range quantum communication. Using single-photon discrete-variable quantum states …

Semi-quantum communication, a model introduced by Boyer et al.(Phys Rev Lett 99:
140501, 2007), involves the use of fully quantum users and semi-quantum, or “classical” …

A systematic analysis of the advantages and challenges associated with the satellite‐based
implementation of the high dimensional extended B92 (HD‐Ext‐B92) and high‐dimensional …

Continuous variable one-way and controlled two-way direct secure quantum communication
schemes have been designed using Gaussian states. Specifically, a scheme for continuous …

We propose a set of protocols for quantum anonymous veto (QAV) broadly categorized
under the probabilistic, iterative, and deterministic schemes. The schemes are based upon …

We discuss a simple idealistic quantum entanglement based protocol for quantum random
number generation allowing a trusted third party to publicly perform arbitrarily complex tests …