Quantum direct portation

Abstract

Quantum state that carries classical information, 0 or 1, can be safely and reliably transmitted using quantum secure direct communication. How to transmit an arbitrary quantum state is a wider issue and has important applications. One way is to use quantum teleportation, namely, first distribute a large number of Einstein-Podolsky-Rosen pairs, and then perform entanglement purification to obtain a near-perfect pair, and make quantum teleportation using the pair. In this article, we propose a method that directly port the quantum state with security and reliability using quantum secure direct communication. After sufficient number of copies of the same state have been directly ported, single-particle purification is performed to obtain a near perfect single particle state. This is important because it offers a new method for sending an arbitrary single particle state securely and reliably without using quantum teleportation. It is also an important extension of quantum secure direct communication to send an arbitrary quantum state. Quantum direct portation will have great potential in quantum internet.

Application of Modified Graphene Oxide in Corrosion Protection

“…[108] (f) Self-healing effect. [117] zinc to form a primary cell, with zinc acting as the anode, thereby inhibiting corrosion of the metal. "Self-repair" refers to the use of graphene as a load corrosion inhibitor control system.…”

“…Figure 7. Anticorrosive mechanism of graphene (a) Barrier effect; (b) Shieldding effect; (c) Corrosion inhibition; (d) Reinforcement; (e) Cathodic protection;(f) Self-healing effect [117]. …”

Nontraditional Deterministic Remote State Preparation Using a Non-Maximally Entangled Channel without Additional Quantum Resources

“…The quantum network, the backbone of quantum computing architectures, is composed of spatially separated nodes storing quantum information in quantum bits and connected by quantum channels [1][2][3][4][5][6]. Quantum communication tasks transferring information between disparate quantum nodes constitute the essential elements necessary for integrated quantum networks [7][8][9][10], such as quantum teleportation (QT) [11][12][13], quantum key distribution (QKD) [14][15][16][17][18][19], quantum dense coding (QDC) [20][21][22][23] and quantum secure direct communication (QSDC) [24][25][26][27]. Suppose two communicators named Alice and Bob are placed in two different quantum nodes and previously share an entanglement in the form of the quantum channel.…”