检索结果-内蒙古大学图书馆

N-qubit quantum teleportation, information splitting and superdense coding through the composite GHZ-Bell channel

QUANTUM INFORMATION PROCESSING 2012年第2期11卷 615-628页

作者： Saha, Debashis Panigrahi, Prasanta K. IISER Kolkata Mohanpur Nadia 741252 W Bengal India

We introduce a general odd qubit entangled system composed of GHZ and Bell pairs and explicate its usefulness for quantum teleportation, information splitting and superdense coding. After demonstrating the superdense coding protocol on the five qubit system, we prove that '2N + 1' classical bits can be sent by sending 'N + 1' quantum bits using this channel. It is found that the five-qubit system is also ideal for arbitrary one qubit and two qubit teleportation and quantum information splitting (QIS). For the single qubit QIS, three different protocols are feasible, whereas for the two qubit QIS, only one protocol exists. Protocols for the arbitrary N-qubit state teleportation and quantum information splitting are then illustrated.

关键词： Entanglement von Neumann measurement Teleportation superdense coding Quantum information splitting

来源：评论

学校读者我要写书评

暂无评论

A Quantum Proxy Blind Signature Scheme Based on superdense coding

引用

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS 2020年第4期59卷 1121-1128页

作者： Niu, Xu-Feng Ma, Wen-Ping Chen, Bu-Qing Liu, Ge Wang, Qi-Zheng Xidian Univ State Key Lab Integrated Serv Networks Xian 710071 Shaanxi Peoples R China PLA Informat Engn Univ Teaching & Res Sect Polit Luoyang 471003 Henan Peoples R China

In this paper, we show a new quantum proxy blind signature scheme based on single particle superdense coding. We only need perform unitary operator on single qubit to blind 2-bit classical information. The scheme also satisfies the properties of blindness, unforgeability and undeniability. It has a wide application to e-payment, e-voting, e-government, and etc.

关键词： Quantum proxy blind signature superdense coding Unitary operator

来源：评论

学校读者我要写书评

暂无评论

Efficient superdense coding with W States

引用

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS 2018年第7期57卷 1935-1941页

作者： Zhou, You-Sheng Wang, Feng Luo, Ming-Xing Chongqing Univ Coll Comp Sci Chongqing 400044 Peoples R China Chongqing Univ Posts & Telecommun Sch Cyber Secur & Informat Law Chongqing 400065 Peoples R China Dezhou Univ Coll Math Sci Dezhou 253023 Peoples R China Southwest Jiaotong Univ Informat Secur & Natl Comp Grid Lab Chengdu 610031 Sichuan Peoples R China

superdense coding is a distinct property of quantum entanglement. In this paper, we show that the bipartite three-particle W state can transmit 3 bits by sending two qubits using single qubit operations. This has justified previous conjecture (Agrawal and Pati, Phys. Rev. A 74(6), 062320 2006). Similar result holds for hyperentangled W states.

关键词： superdense coding W states Hyperentangled W states LOCC

来源：评论

学校读者我要写书评

暂无评论

Rigidity of superdense coding

引用

ACM TRANSACTIONS ON QUANTUM COMPUTING 2023年第4期4卷 1-39页

作者： Nayak, Ashwin Yuen, Henry Univ Waterloo Inst Quantum Comp Dept Combinator & Optimizat 200 Univ Ave West Waterloo ON N2L 3G1 Canada Columbia Univ Dept Comp Sci 500 W 120th St New York NY 10027 USA

The famous superdense coding protocol of Bennett and Wiesner demonstrates that it is possible to communicate two bits of classical information by sending only one qubit and using a shared EPR pair. Our first result is that an arbitrary protocol for achieving this task (where there are no assumptions on the sender's encoding operations or the dimension of the shared entangled state) is locally equivalent to the canonical Bennett-Wiesner protocol. In other words, the superdense coding task is rigid. In particular, we show that the sender and receiver only use additional entanglement (beyond the EPR pair) as a source of classical randomness. We also investigate several questions about higher-dimensional superdense coding, where the goal is to communicate one of d(2) possible messages by sending a d-dimensional quantum state, for general dimensions d. Unlike the d = 2 case (i.e., sending a single qubit), there can be inequivalent superdense coding protocols for higher d. We present concrete constructions of inequivalent protocols, based on constructions of inequivalent orthogonal unitary bases for all d > 2. Finally, we analyze the performance of superdense coding protocols where the encoding operators are independently sampled from the Haar measure on the unitary group. Our analysis involves bounding the distinguishability of random maximally entangled states, which may be of independent interest.

关键词： superdense coding rigidity shared entanglement orthogonal unitary basis random maximally entangled states distinguishability generalized Holevo-Curlander bounds Marcenko-Pastur Law

来源：评论

学校读者我要写书评

暂无评论

Optimal superdense coding capacity in the non-Markovian regime

引用

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 2024年第19期57卷 195303-195303页

作者： Aiache, Y. Al-Kuwari, S. El Anouz, K. El Allati, A. Abdelmalek Essaadi Univ Fac Sci & Tech Al Hoceima Lab R&D Engn Sci Tetouan Morocco Max Planck Inst Phys Komplexer Syst Nothnitzer Str 38 D-01187 Dresden Germany Hamad Bin Khalifa Univ Coll Sci & Engn Qatar Ctr Quantum Comp QC2 Doha Qatar

superdense coding (SDC) is a significant technique widely used in quantum information processing. Indeed, it consists of sending two bits of classical information using a single qubit, leading to faster and more efficient quantum communication. In this paper, we propose a model to evaluate the effect of backflow information in a SDC protocol through a non-Markovian dynamics. The model considers a qubit interacting with a structured Markovian environment. In order to generate a non-Markovian dynamic, an auxiliary qubit contacts a Markovian reservoir in such a way that the non-Markovian regime can be induced. By varying the coupling strength between the central qubit and the auxiliary qubit, the two dynamical regimes can be switched interchangeably. An enhancement in non-Markovian effects corresponds to an increase in this coupling strength. Furthermore, we conduct an examination of various parameters, namely temperature weight, and decoherence parameters in order to explore the behaviors of SDC, quantum fisher information (QFI), and local quantum uncertainty using an exact calculation. The obtained results show a significant relationship between non-classical correlations and QFI since they behave similarly, allowing them to detect what is beyond entanglement. In addition, the presence of non-classical correlations enables us to detect the optimal SDC capacity in a non-Markovian regime.

关键词： non-Markovianity superdense coding quantum Fisher information local quantum uncertainty

来源：评论

学校读者我要写书评

暂无评论

Quantum Authentication Protocol for Secure Quantum superdense coding

Quantum Authentication Protocol for Secure Quantum Superdens...

引用

IEEE SoutheastCon Conference on Engineering the Future

作者： Kim, Teo Baek, Jinsuk Yi, John T. Univ North Carolina Greensboro Dept Comp Sci Greensboro NC 27412 USA Winston Salem State Univ Dept Comp Sci Winston Salem NC USA

ISBN: (纸本)9798350317107;9798350317114

In quantum information theory, superdense coding allows two network entities to exchange two classical bits via a quantum channel using a single quantum bit (qubit) transmission, provided they have pre-shared an entangled qubit. An attacker intercepting the qubit during transmission cannot extract meaningful data without the other entangled qubit from the pair. However, an attacker can disrupt the communication by introducing its own qubit to the receiver. To enhance the security of superdense coding, we propose an authentication mechanism through a classical communication channel.

关键词： quantum computing superdense coding quantum authentication entanglement

来源：评论

学校读者我要写书评

暂无评论

superdense coding, Teleportation Algorithms, and Bell's Inequality Test in Qiskit and IBM Circuit Composer

ELECTRICA

引用

ELECTRICA 2022年第2期22卷 120-131页

作者： Kocak, Yasemin Poyraz Sevgen, Selcuk Istanbul Univ Cerrahpasa Dept Comp Programming Istanbul Turkey Istanbul Univ Cerrahpasa Dept Comp Engn Istanbul Turkey

Quantum teleportation is a technique of sending information from one place to another place. Distance between two points can be hundreds of thousands of light-years. For quantum teleportation, there is no need for a channel between two points when sending a state vector from one place to another. Since classical information sharing is possible, it is also possible to send a state vector from one place to another place. Teleportation is the transfer of a quantum state from one place to another through classical channels. superdense coding, a dual to teleportation, uses a single quantum bit to transmit two bits classical information. superdense coding uses a qubit to transfer two classical bits, while teleportation performs one qubit transfer using two classical bits. In this article, teleportation, superdense coding algorithms, and the Bell's inequality test in which Bell's inequality is violated with quantum mechanics are performed on both Qiskit and International Business Machines circuit composer, and results are compared and presented in detail. The results revealed that whether a faster-than-light signal transfer is possible using quantum mechanics depends on whether a copy of the quantum state is created or not. Finally, Bell's inequality created by classical logic violated by quantum mechanics is shown by experimental results.

关键词： superdense coding quantum teleportation Bell's inequality

来源：评论

学校读者我要写书评

暂无评论

Multi-qubit teleportation and multi-bit superdense coding via cascade splitting

引用

OPTICAL AND QUANTUM ELECTRONICS 2023年第11期55卷 1026-1026页

作者： Mastriani, Mario Florida Int Univ Knight Fdn Sch Comp & Informat Sci 11200 SW 8th St Miami FL 33199 USA

In this study, we present a simplified version of the quantum teleportation protocol for n-qubits and a generalized version of the superdense coding protocol for n-bits, in both cases, thanks to the cascade splitting technique. Both protocols will be analyzed on three notably different platforms: Quirk simulator, IBM QASM simulator of the IBM Q Experience program, and an optical table. The experiments on the three platforms show the excellent performance of both protocols. Finally, an analysis of the immunity of these protocols in the presence of an eavesdropper is incorporated.

关键词： Entanglement superdense coding Teleportation

来源：评论

学校读者我要写书评

暂无评论

Absolutely secure distributed superdense coding: entanglement requirement for optimality

引用

PHYSICA SCRIPTA 2023年第2期98卷 025104-025104页

作者： Dutta, Sagnik Banerjee, Asmita Panigrahi, Prasanta K. Indian Inst Sci Educ & Res Kolkata Dept Phys Sci Mohanpur 741246 W Bengal India Narula Inst Technol Kolkata 700109 W Bengal India

superdense coding uses entanglement as a resource to communicate classical information efficiently through quantum channels. A superdense coding method is optimal when its capacity reaches Holevo bound. We show that for optimality, maximal entanglement is a necessity across the bipartition of Alice and Bob, but neither absolute nor genuine multipartite entanglement is required. Unlike the previous schemes, which can transmit either even or odd bits of information, we demonstrate a generalized dense coding protocol using the genuine multipartite entangled GHZ state to send arbitrary information bits. Expressed in the eigenbasis of different Pauli operators, GHZ state is characterized by a unique parity pattern which enables us to formulate a security checking technique to ensure absolute security of the protocol. We show this method is better applicable in a scenario, where the initial information is distributed among spatially separated parties. Finally, optimizing the number of qubit(s) sent to Bob, we construct a distributed dense coding method, which completely depicts absolutely secure quantum communication between many to one party.

关键词： superdense coding GHZ state quantum communication

来源：评论

学校读者我要写书评

暂无评论

PERFECT TELEPORTATION, superdense coding VIA A KIND OF W-CLASS STATE

引用

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION 2010年第8期8卷 1411-1420页

作者： Shang-Guan, Li-Ying Sun, Hong-Xiang Chen, Xiu-Bo Jia, Heng-Yue Wen, Qiao-Yan Zhu, Fu-Chen Beijing Univ Posts & Telecommun State Key Lab Networking & Switching Technol Beijing 100876 Peoples R China Beijing Univ Posts & Telecommun Sch Sci Beijing 100876 Peoples R China Natl Lab Modern Commun Chengdu 610041 Peoples R China

Perfect teleportation and superdense coding are discussed via a special kind of W-state. It is shown that the state can be used for perfect teleportation of the state x vertical bar 0 >(circle times N) + y vertical bar 1 >(circle times N). And the state can be utilized for superdense coding. Moreover, it is demonstrated that the sender can transmit N classical bits to the receiver by sending N - 1 qubits.

关键词： Perfect teleportation superdense coding

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：