Quantum fingerprints are useful quantum encodings introduced by Buhrman, Cleve, and Watrous (Physical Review Letters, Volume 87, Number 16, Article 167902, 2001) in obtaining an efficient quantum communication protocol. We design a protocol for constructing the fingerprint in a distributed scenario. As an application, this protocol gives rise to a communication protocol more efficient than the ...

The notion of quantum secure direct communication (QSDC) has been introduced recently in quantum cryptography as a replacement for quantum key distribution, in which two communication entities exchange secure classical messages without establishing any shared keys previously. In this paper, a quantum secure direct communication scheme using quantum Calderbank-Shor-Steane (CCS) error correction ...

Quantum communication is built on a set of disruptive concepts and technologies. It is driven by fascinating physics and by promising applications. It requires a new mix of competencies, from telecom engineering to theoretical physics, from theoretical computer science to mechanical and electronic engineering. First applications have already found their way into niche markets, and university la...

As quantum computing moves closer to real-world application, engineers are considering how to meet the challenge of transmitting quantum information faithfully down long, noisy optical fibers. The fidelity with which an entangled photon pair can be sent down a fiber decreases exponentially with distance, requiring repeater nodes spaced 10 km apart. Liang Jiang et al. report an approach to findi...

Communication is primarily the generation of correlations between two parties. The transmission of information is undertaken to correlate the received message with an possible set of transmitted messages. In the classical theory of information the maximum rate of information transmission through a memoryless channel is given by a measure of the maximum correlation that may be generated through ...

Quantum entanglement cannot be used to achieve direct communication between remote parties, but it can reduce the communication needed for some problems. Let each of k parties hold some partial input data to some fixed k-variable function f . The communication complexity of f is the minimum number of classical bits required to be broadcasted for every party to know the value of f on their input...

Several different definitions of quantum games have been proposed over the past five years. Some of the results claimed for the differences between these quantum games and classical games identified as those to which they correspond have been criticized, however, as not being fair comparisons. In this paper I define classical and quantum versions of games with mediated communication, and propos...

This work develops a formal framework for specifying, implementing, and analysing quantum communication protocols. We provide tools for developing simple proofs and analysing programs which involve communication, both via quantum channels and exhibiting the LOCC (local operations, classical communication) paradigm.

Quantum amplifier channels are at the core of several physical processes in nature. Not only do they model the optical process of spontaneous parametric down-conversion, but the Bogoliubov transformation corresponding to an amplifier channel also describes the physics of the dynamical Casimir effect in superconducting circuits, the Unruh effect, and Hawking radiation. Here we study the communic...