EXAMPLES OF QUANTUM IT IN NEW TECHNOLOGIES OF COMPUTATION

2021 ◽  
Vol 158 (3-4) ◽  
pp. 65-89
Author(s):  
Tomasz Kuczerski
Keyword(s):  
Quantum Cryptography ◽  
New Technologies ◽  
Quantum Algorithms ◽  
Data Analyses ◽  
Matrix Calculus ◽  
Quantum Computations

The paper includes definitions of elements of quantum IT referred to classical technologies of computation. It explains the principles of transformation of calculating algorithms to the domain of quantum computations using the optimisation and matrix calculus. Exemplary applications of classical algorithms are presented with possibilities of their realisation in domain of quantum IT. Autor presents some possibilities for using quantum algorithms in new computation technologies concerning quantum cryptography and data analyses with complex computations.

scholarly journals Un año de Spanish in a day. Resultados y retos futuros

2017 ◽  
Author(s):  
Provi Ayala Carrasco ◽  
Yeray González Plasencia ◽  
Antonio Ramos Álvarez
Keyword(s):  
Instructional Design ◽  
Documentary Film ◽  
New Technologies ◽  
Student Participation ◽  
Assessment Criteria ◽  
Online Video ◽  
Collaborative Project ◽  
Video Clips ◽  
Data Analyses ◽  
Nuevas Tecnologías

Resumen: en este artículo se ofrecen los lineamientos básicos del proyecto colaborativo Spanish in a day, el primer concurso audiovisual para estudiantes de E/LE de todo el mundo en Internet. En primer lugar, se expone la fase de creación del certamen, atendiendo a las bases, los objetivos, las categorías y la evaluación del mismo. Posteriormente, se muestran las novedades de la segunda edición, poniendo especial énfasis en el concurso paralelo para menores de edad y en el desarrollo de un curso MOOC basado en los vídeos obtenidos en la primera edición. Finalmente, se presentan los resultados del proyecto, profundizando en tres aspectos: los índices de participación, la retroalimentación que se ha obtenido de los participantes y la creación de una película que acoge los vídeos de todos los concursantes.Palabras clave: concurso audiovisual, nuevas tecnologías, MOOC. Abstract: this paper aims to provide an overview of the collaborative project Spanish in a day, the first online video contest for Spanish FL learners worldwide. In the first place, we will describe the key elements when designing the contest (rules, goals, categories and assessment criteria). Subsequently, we will focus on the new features of the 2nd edition, in particular those dealing with the parallel contest for underage students and with the instructional design of a MOOC, based on selected videos of the 1st edition. Lastly, conclusions drawn from data analyses will be addressed in relation to the following aspects: student participation and feedback and the production of a documentary film featuring video clips from all contestants.Keywords: video contest, new technologies, MOOC.

Development of a technique for modeling entangled quantum computations that are applicable in Simon’s quantum algorithm

2020 ◽  
pp. 66-70
Author(s):  
Viktor S. Potapov ◽  
Sergei M. Gushansky
Keyword(s):  
Computer System ◽  
Matrix Algebra ◽  
Quantum Computer ◽  
Quantum Algorithms ◽  
Quantum Algorithm ◽  
Quantum Calculations ◽  
Computing Process ◽  
Quantum Computations

This paper describes the basics of developing quantum algorithms and modeling entangled quantum computations applicable in quantum algorithms. Quantum algorithms involve the use of vector and matrix algebra. The basic tasks of the simulation proposed in the work are determined within the framework of the algorithm for executing quantum algorithms, taking into account entanglement. A technique has been developed for modeling entangled quantum calculations applicable in the Simon quantum algorithm, which helps to predict the behavior of the quantum algorithm (or any other computing process that proceeds as part of the work of a quantum computer system) with partial entanglement.

Quantum Computer and Post-Quantum Cryptography

2021 ◽  
Vol 12 (4) ◽  
pp. 171-178
Author(s):  
S. А. Bukashkin ◽  
◽  
М. А. Cherepniov ◽  
Keyword(s):  
Quantum Cryptography ◽  
Quantum Computer ◽  
Quantum Algorithms ◽  
Cryptographic Protocols ◽  
Theory And Practice ◽  
Current State ◽  
Electronic Computers ◽  
Post Quantum Cryptography

An overview of the current state of the problem of building a quantum computer and its hypothetical use for breaking cryptographic protocols is presented. The necessary parameters are considered. An overview of existing quantum algorithms and post-quantum cryptographic protocols that are strong with respect to them is presented. The problem of constructing a quantum computer is considered in comparison with the development of the theory and practice of conventional mechanical and electronic computers. The results of contests on the topic of post-quantum cryptography are presented.

scholarly journals Un año de Spanish in a day. Resultados y retos futuros

2017 ◽  
Author(s):  
Provi Ayala Carrasco ◽  
Yeray González Plasencia ◽  
Antonio Ramos Álvarez
Keyword(s):  
Instructional Design ◽  
Documentary Film ◽  
New Technologies ◽  
Student Participation ◽  
Assessment Criteria ◽  
Online Video ◽  
Collaborative Project ◽  
Video Clips ◽  
Data Analyses ◽  
Nuevas Tecnologías

Resumen: en este artículo se ofrecen los lineamientos básicos del proyecto colaborativo Spanish in a day, el primer concurso audiovisual para estudiantes de E/LE de todo el mundo en Internet. En primer lugar, se expone la fase de creación del certamen, atendiendo a las bases, los objetivos, las categorías y la evaluación del mismo. Posteriormente, se muestran las novedades de la segunda edición, poniendo especial énfasis en el concurso paralelo para menores de edad y en el desarrollo de un curso MOOC basado en los vídeos obtenidos en la primera edición. Finalmente, se presentan los resultados del proyecto, profundizando en tres aspectos: los índices de participación, la retroalimentación que se ha obtenido de los participantes y la creación de una película que acoge los vídeos de todos los concursantes.Palabras clave: concurso audiovisual, nuevas tecnologías, MOOC. Abstract: this paper aims to provide an overview of the collaborative project Spanish in a day, the first online video contest for Spanish FL learners worldwide. In the first place, we will describe the key elements when designing the contest (rules, goals, categories and assessment criteria). Subsequently, we will focus on the new features of the 2nd edition, in particular those dealing with the parallel contest for underage students and with the instructional design of a MOOC, based on selected videos of the 1st edition. Lastly, conclusions drawn from data analyses will be addressed in relation to the following aspects: student participation and feedback and the production of a documentary film featuring video clips from all contestants.Keywords: video contest, new technologies, MOOC.

Quantum Computing and Quantum Communication

2018 ◽  
pp. 7715-7730
Author(s):  
Göran Pulkkis ◽  
Kaj J. Grahn
Keyword(s):  
Quantum Computing ◽  
Quantum Computation ◽  
Quantum Cryptography ◽  
Quantum Algorithms ◽  
Quantum Circuit ◽  
Quantum States ◽  
Future Perspectives ◽  
Quantum Informatics ◽  
Quantum Programming ◽  
Computing Models

This article presents state-of-the-art and future perspectives of quantum computing and communication. Timeline of relevant findings in quantum informatics, such as quantum algorithms, quantum cryptography protocols, and quantum computing models, is summarized. Mathematics of information representation with quantum states is presented. The quantum circuit and adiabatic models of quantum computation are outlined. The functionality, limitations, and security of the quantum key distribution (QKD) protocol is presented. Current implementations of quantum computers and principles of quantum programming are shortly described.

scholarly journals Code-based Post-Quantum Cryptography

2021 ◽  
Author(s):  
Chithralekha Balamurugan ◽  
Kalpana Singh ◽  
Ganeshvani Ganesan ◽  
Muttukrishnan Rajarajan
Keyword(s):  
Quantum Computing ◽  
Quantum Cryptography ◽  
Quantum Algorithms ◽  
Modular Arithmetic ◽  
Research Directions ◽  
Major Threat ◽  
Hard Problems ◽  
Post Quantum Cryptography ◽  
In Transit ◽  
Code Based Cryptography

Cryptography has been used from time immemorial for preserving the confidentiality of data/information in storage or in transit. Thus, cryptography research has also been evolving from the classical Caesar cipher to the modern cryptosystems based on modular arithmetic to the contemporary cryptosystems based on quantum computing. The emergence of quantum computing imposes a major threat on the modern cryptosystems based on modular arithmetic whereby, even the computationally hard problems which constitute for the strength of the modular arithmetic ciphers could be solved in deterministic time. This threat triggered post-quantum cryptography research in order to design and develop post-quantum algorithms that can withstand quantum computing attacks. This paper provides a review of the various post-quantum cryptography and, in specific, code-based cryptography research dimensions. The research directions that are yet to be explored in code-based cryptography research is another key contribution of this paper.

scholarly journals High-dimensional entanglement-enabled holography for quantum encryption

2021 ◽  
Author(s):  
Ling-Jun Kong ◽  
Furong Zhang ◽  
Jingfeng Zhang ◽  
Yifan Sun ◽  
Xiangdong Zhang
Keyword(s):  
Information Security ◽  
Quantum Cryptography ◽  
Quantum Key Distribution ◽  
Quantum Algorithms ◽  
Key Distribution ◽  
High Dimensional ◽  
Entangled State ◽  
Quantum Computers ◽  
Transmission Of Information ◽  
Quantum Encryption

Abstract Cryptography plays an important role in information security, which is widely applied in the various fields of society. Quantum cryptography has shown its great advantages in information security compared with the classical one. Two major directions of quantum cryptography are quantum key distribution (QKD) and quantum encryption, with the former focusing on secure key distribution and the latter focusing on encryption using quantum algorithms. In contrast to the well accepted success of the QKD, the development of quantum encryption is rather limited because of the difficulties of building up algorithms and the constructing the practical quantum computers. Here we propose a new scheme of quantum encryption based on high-dimensional entanglement holography. Firstly, we experimentally realize the quantum holography based on the high-dimensional orbital angular momentum (OAM) entanglement. Then, OAM-selective holographic scheme for quantum encryption is proposed and demonstrated. Our results show that introducing quantum entangled state into OAM holography makes the OAM holography possess infinite information channels and the transmission of information be absolute security in principle. Furthermore, decryption in the presence of strong noise is achieved. Our work opens up a new way to realize quantum information security.

scholarly journals A quantum encryption design featuring confusion, diffusion, and mode of operation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zixuan Hu ◽  
Sabre Kais
Keyword(s):  
Quantum Cryptography ◽  
Quantum Key Distribution ◽  
Block Cipher ◽  
Quantum Information Processing ◽  
Quantum Algorithms ◽  
Key Distribution ◽  
Mode Of Operation ◽  
Encryption Algorithms ◽  
Communication Needs ◽  
Quantum Encryption

AbstractQuantum cryptography—the application of quantum information processing and quantum computing techniques to cryptography has been extensively investigated. Two major directions of quantum cryptography are quantum key distribution (QKD) and quantum encryption, with the former focusing on secure key distribution and the latter focusing on encryption using quantum algorithms. In contrast to the success of the QKD, the development of quantum encryption algorithms is limited to designs of mostly one-time pads (OTP) that are unsuitable for most communication needs. In this work we propose a non-OTP quantum encryption design utilizing a quantum state creation process to encrypt messages. As essentially a non-OTP quantum block cipher the method stands out against existing methods with the following features: 1. complex key-ciphertext relation (i.e. confusion) and complex plaintext-ciphertext relation (i.e. diffusion); 2. mode of operation design for practical encryption on multiple blocks. These features provide key reusability and protection against eavesdropping and standard cryptanalytic attacks.

scholarly journals Quantum Algorithms

2021 ◽  
pp. 81-92
Author(s):  
Ciaran Hughes ◽  
Joshua Isaacson ◽  
Anastasia Perry ◽  
Ranbel F. Sun ◽  
Jessica Turner
Keyword(s):  
Quantum Logic ◽  
Quantum Algorithms ◽  
Logic Gates ◽  
Quantum Mechanical ◽  
Quantum Computers ◽  
Quantum Logic Gates ◽  
Link Type ◽  
Quantum Computations ◽  
Secure Channels ◽  
Mechanical Phenomena

AbstractWe have come a long way from Chap. 10.1007/978-3-030-61601-4_1 To recap on what we have learnt, we have understood important quantum mechanical phenomena such as superposition and measurement (through the Stern-Gerlach and Mach-Zehnder experiments). We have also learnt that while quantum computers can in principle break classical encryption protocols, they can also be used to make new secure channels of communication. Furthermore, we have applied quantum logic gates to qubits to perform quantum computations. With entanglement, we teleported the information in an unknown qubit to another qubit. This is quite a substantial achievement.

scholarly journals Post-Quantum and Code-Based Cryptography—Some Prospective Research Directions

Cryptography ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 38
Author(s):  
Chithralekha Balamurugan ◽  
Kalpana Singh ◽  
Ganeshvani Ganesan ◽  
Muttukrishnan Rajarajan
Keyword(s):  
Quantum Computing ◽  
Quantum Cryptography ◽  
Polynomial Time ◽  
Quantum Algorithms ◽  
Modular Arithmetic ◽  
Research Directions ◽  
Major Threat ◽  
Hard Problems ◽  
Post Quantum Cryptography ◽  
Code Based Cryptography

Cryptography has been used from time immemorial for preserving the confidentiality of data/information in storage or transit. Thus, cryptography research has also been evolving from the classical Caesar cipher to the modern cryptosystems, based on modular arithmetic to the contemporary cryptosystems based on quantum computing. The emergence of quantum computing poses a major threat to the modern cryptosystems based on modular arithmetic, whereby even the computationally hard problems which constitute the strength of the modular arithmetic ciphers could be solved in polynomial time. This threat triggered post-quantum cryptography research to design and develop post-quantum algorithms that can withstand quantum computing attacks. This paper provides an overview of the various research directions that have been explored in post-quantum cryptography and, specifically, the various code-based cryptography research dimensions that have been explored. Some potential research directions that are yet to be explored in code-based cryptography research from the perspective of codes is a key contribution of this paper.

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