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 …

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 …

A digital computer is generally believed to be an efficient universal computing device; that is,
it is believed to be able to simulate any physical computing device with an increase in …

Bell's 1964 theorem, which states that the predictions of quantum theory cannot be
accounted for by any local theory, represents one of the most profound developments in the …

After a brief introduction to the principles and promise of quantum information processing,
the requirements for the physical implementation of quantum computation are discussed …

Secret sharing is a procedure for splitting a message into several parts so that no subset of
parts is sufficient to read the message, but the entire set is. We show how this procedure can …

In information processing, as in physics, our classical world view provides an incomplete
approximation to an underlying quantum reality. Quantum effects like interference and …

In recent years, there has been a rising interest in high‐dimensional quantum states and
their impact on quantum communication. Indeed, the availability of an enlarged Hilbert …

The Gottesman-Knill theorem says that a stabilizer circuit—that is, a quantum circuit
consisting solely of controlled-not (cnot), Hadamard, and phase gates—can be simulated …

We present the experimental observation of polarization entanglement for three spatially
separated photons. Such states of more than two entangled particles, known as …