A quantum internet is the holy grail of quantum information processing, enabling the
deployment of a broad range of quantum technologies and protocols on a global scale …

Quantum theory has been successfully validated in numerous laboratory experiments. But
would such a theory, which effectively describes the behavior of microscopic physical …

Quantum key distribution (QKD) aims to generate secure private keys shared by two remote
parties. With its security being protected by principles of quantum mechanics, some …

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

The scale-up of quantum hardware is fundamental to realize the full potential of quantum
technology. Among a plethora of hardware platforms, photonics stands out: it provides a …

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 …

Trapped ions are among the most promising systems for practical quantum computing (QC).
The basic requirements for universal QC have all been demonstrated with ions, and …

In principle, quantum key distribution (QKD) offers information-theoretic security based on
the laws of physics. In practice, however, the imperfections of realistic devices might …

The basic principle of quantum mechanics guarantees the unconditional security of quantum
key distribution (QKD),,,–at the cost of forbidding the amplification of a quantum state. As a …

The ability to communicate quantum information over long distances is of central importance
in quantum science and engineering. Although some applications of quantum …