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 …

All our former experience with application of quantum theory seems to say that what is
predicted by quantum formalism must occur in the laboratory. But the essence of quantum …

Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to
real-world applications for communication and computation unavailable without the …

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 …

Electrically driven semiconductor lasers are used in technologies ranging from
telecommunications and information storage to medical diagnostics and therapeutics. The …

Concerted efforts are underway to establish an infrastructure for a global quantum Internet to
realise a spectrum of quantum technologies. This will enable more precise sensors, secure …

Quantum error-correcting codes are constructed that embed a finite-dimensional code space
in the infinite-dimensional Hilbert space of a system described by continuous quantum …

Quantum continuous variables are being explored,,,,,,,,,,,, as an alternative means to
implement quantum key distribution, which is usually based on single photon counting. The …

We propose several methods for quantum key distribution (QKD) based on the generation
and transmission of random distributions of coherent or squeezed states, and we show that …