The manner in which states of some quantum systems become effectively classical is of
great significance for the foundations of quantum physics, as well as for problems of …

Hybrid quantum circuits combine two or more physical systems, with the goal of harnessing
the advantages and strengths of the different systems in order to better explore new …

The central technological appeal of quantum science resides in exploiting quantum effects,
such as entanglement, for a variety of applications, including computing, communication and …

In the light of the tremendous progress that has been made in raising the transition
temperature of the copper oxide superconductors (for a review, see ref.), it is natural to …

We present a scheme of quantum computation that consists entirely of one-qubit
measurements on a particular class of entangled states, the cluster states. The …

Two decades after their demonstration, superconducting nanowire single-photon detectors
(SNSPDs) have become indispensable tools for quantum photonics as well as for many …

Entanglement, one of the most intriguing features of quantum theory and a main resource in
quantum information science, is expected to play a crucial role also in the study of quantum …

The assembly of semiconductor nanowires and carbon nanotubes into nanoscale devices
and circuits could enable diverse applications in nanoelectronics and photonics. Individual …

Quantum networks play an extremely important role in quantum information science, with
application to quantum communication, computation, metrology, and fundamental tests. One …

The number of steps any classical computer requires in order to find the prime factors of an l-
digit integer N increases exponentially with l, at least using algorithms known at present …