Quantum cryptography Page 1 Quantum cryptography Nicolas Gisin, Grégoire Ribordy,
Wolfgang Tittel, and Hugo Zbinden Group of Applied Physics, University of Geneva, 1211 …

Quantum cryptography exploits principles of quantum physics for the secure processing of
information. A prominent example is secure communication, ie, the task of transmitting …

Quantum Information Theory is an area of physics which studies both fundamental and
applied issues in quantum mechanics from an information-theoretical viewpoint. The …

Heisenberg's uncertainty principle forms a fundamental element of quantum mechanics.
Uncertainty relations in terms of entropies were initially proposed to deal with conceptual …

This paper prove the security of the Bennett-Brassard (BB84) quantum key distribution
protocol in the case where the source and detector are under the limited control of an …

In recent years, the interdisciplinary field of quantum computing has rapidly developed and
garnered substantial interest from both academia and industry due to its ability to process …

VI Preface methods from information theory. Unconditionally secure schemes are now
addressed in an extra chapter, Chapter 10.• Unconditional security is not achievable without …

Despite enormous theoretical and experimental progress in quantum cryptography, the
security of most current implementations of quantum key distribution is still not rigorously …

The twin-field (TF) quantum key distribution (QKD) protocol and its variants are highly
attractive because they can beat the well-known fundamental limit of the secret key rate for …

We devise a simple modification that essentially doubles the efficiency of the BB84 quantum
key distribution scheme proposed by Bennett and Brassard. We also prove the security of …