In the well known treatment of quantum teleportation, the receiver should convert the state of his EPR particle into the replica of the unknown quantum state by one of four possible unitary transformations. However, the importance of these unitary transformations must be emphasized. We will show in this paper that the receiver can not transform the state of his particle into an exact replica of...

Abstract Quantum teleportation is the fundamental communication unit in quantum communication. Here, a three-level system selected for storing and transmitting information, due to its unique advantages, such as lower cost than higher-level higher capacity security two-level system. It known that key procedure perfect distribution of entanglement through channel. However, amounts noise existing ...

We propose a set of linear quantum entanglement witnesses constituted by local quantum-mechanical observables with each two possible measurement outcomes. These witnesses detect all the entangled resources which give rise to a better fidelity than separable states in quantum teleportation and present both sufficient and necessary conditions in experimentally detecting the useful resources for q...

The large and rapidly growing field of quantum information science is a vindication of Landauer’s insistence that we recognize the physical basis of information storage, processing and communication[1]. Quantum information science is based on the discovery that there are physical states of a quantum system which enable tasks that cannot be accomplished in a classical world. An important example...

The coherent transduction between microwave and optical frequencies is critical to interconnect superconducting quantum processors over long distances. However, it challenging establish such a interface with high efficiency small added noise based on the standard direct conversion scheme. Here, we propose an electro-optic system continuous-variable teleportation. Reliable quantum-information tr...

We evaluate the performance of quantum arithmetic algorithms run on a distributed quantum computer (a quantum multicomputer). We vary the node capacity and I/O capabilities, and the network topology. The tradeoff of choosing between gates executed remotely, through “teleported gates” on entangled pairs of qubits (telegate), versus exchanging the relevant qubits via quantum teleportation, then e...

Quantum teleportation, the faithful transfer of an unknown input state onto a remote quantum system, is key component in long distance communication protocols and distributed computing. At same time, high frequency nano-optomechanical systems hold great promise as nodes future network, operating on-chip at low-loss optical telecom wavelengths with mechanical lifetimes. Recent demonstrations inc...

We evaluate the performance of quantum arithmetic algorithms run on a distributed quantum computer (a quantum multicomputer). We vary the node capacity and I/O capabilities, and the network topology. The tradeoff of choosing between gates executed remotely, through “teleported gates” on entangled pairs of qubits (telegate), versus exchanging the relevant qubits via quantum teleportation, then e...

A system architecture for achieving long-distance, high-fidelity teleportation and long-duration quantum storage is proposed. It uses polarizationentangled photons and trapped-atom quantum memories and is compatible with transmission over standard telecommunication fibre. An extension of this architecture permits long-distance transmission and storage of Greenberger– Horne–Zeilinger states.

Data communication technology has been actively researched for many years. As the conjunction of computer science and physics, quantum information brings brand new fundamentals with the term quantum communication. In this report we introduce a protocol in quantum communication called quantum teleportation, with explanations about its motivation and possible applications. Previous and current re...