Computer Information Processing Research Articles

Optical Multistability in the Metal Nanoparticle-Graphene Nanodisk-Quantum Dot Hybrid Systems.

Hybrid nanoplasmonic systems can provide a promising platform of potential nonlinear applications due to the enhancement of optical fields near their surfaces in addition to the control of strong light–matter interactions they can afford. We theoretically investigated the optical multistability of a probe field that circulated along a unidirectional ring cavity containing a metal nanoparticle–graphene nanodisk–quantum dot hybrid system; the quantum dot was modeled as a three-level atomic system of Lambda configuration interacting with probe and control fields in the optical region of the electromagnetic spectrum. We show that the threshold and degree of multistability can be controlled by the geometry of the setup, the size of metal nanoparticles, the carrier mobility in the graphene nanodisk and the detunings of probe and control fields. We found that under electromagnetically-induced transparency conditions the system exhibits enhanced optical multistability with an ultralow threshold in the case of two-photon resonance with high carrier mobility in the graphene nanodisk. Moreover, we calculated the limits of the controllable parameters within which the switching between optical multistability and bistability can occur. We show that our proposed hybrid plasmonic system can be useful for efficient all-optical switches and logic-gate elements for quantum computing and quantum information processing.

Updating the Frame Problem for AI Research

The Frame Problem is the problem of how to design a machine to use information so as to behave competently, with respect to the kinds of tasks a genuinely intelligent agent can reliably, effectively perform. I will argue that the way the Frame Problem is standardly interpreted, and so the strategies considered for attempting to solve it, must be updated. We must replace overly simplistic and reductionist assumptions with more sophisticated and plausible ones. In particular, the standard interpretation assumes that mental processes are identical to certain kinds of computational processes, and so solving the Frame Problem is a matter of finding a computational architecture that can effectively represent relations of semantic relevance. Instead, we must take seriously the possibility that the way in which intelligent agents use information is inherently different. Whereas intelligent agents are plausibly genuinely causally sensitive to semantic properties as such (to what they perceive, desire, believe intend, etc.), computational systems can only be causally sensitive to the formal features that represent these properties. Indeed, it is this very substitution of formal generalizations for genuinely semantic ones that is responsible for the way current AI systems are brittle, inflexible, and highly specialized. What we need is a more sophisticated way of investigating the relationship between computational information processing and genuinely semantic information use. I apply the generative methodology I have developed elsewhere for cognitive science and AI research to show how the Frame Problem can be appropriately updated.

Development of Testing Environment for Analyzing the Psycho-Physiological State of a Person Using Neural Networks and Computer Vision

this article talks about automating the testing processes of a person’s psycho-physiological states by creating a testing environment using data processing from cameras and microphones to automate the process of assessing the patient’s psycho-physiological state using available methodologies. It describes various approaches to the development of computer vision and information processing modules using neural networks, as well as an analysis of the positive and negative qualities of this approach and their solutions.

Microresonators enhancing long-distance dynamical entanglement generation in chiral quantum networks

Chiral quantum networks provide a promising route for realising quantum information processing and quantum communication. Here, we describe how two distant quantum nodes of chiral quantum network become dynamically entangled by a photon transfer through a common 1D chiral waveguide. We harness the directional asymmetry in chirally-coupled single-mode ring resonators to generate entangled state between two atoms. We report a concurrence of up to 0.969, a huge improvement over the 0.736 which was suggested and analyzed in great detail in Ref. [1]. This significant enhancement is achieved by introducing microtoroidal resonators which serve as efficient photonic interface between light and matter. Robustness of our protocol to experimental imperfections such as fluctuations in inter-nodal distance, imperfect chirality, various detunings and atomic spontaneous decay is demonstrated. Our proposal can be utilised for long-distance entanglement generation in quantum networks which is a key ingredient for many applications in quantum computing and quantum information processing.

A Computational Theory of Mindfulness Based Cognitive Therapy from the "Bayesian Brain" Perspective.

Mindfulness Based Cognitive Therapy (MBCT) was developed to combine methods from cognitive behavioral therapy and meditative techniques, with the specific goal of preventing relapse in recurrent depression. While supported by empirical evidence from multiple clinical trials, the cognitive mechanisms behind the effectiveness of MBCT are not well understood in computational (information processing) or biological terms.This article introduces a testable theory about the computational mechanisms behind MBCT that is grounded in “Bayesian brain” concepts of perception from cognitive neuroscience, such as predictive coding. These concepts regard the brain as embodying a model of its environment (including the external world and the body) which predicts future sensory inputs and is updated by prediction errors, depending on how precise these error signals are.This article offers a concrete proposal how core concepts of MBCT—(i) the being mode (accepting whatever sensations arise, without judging or changing them), (ii) decentering (experiencing thoughts and percepts simply as events in the mind that arise and pass), and (iii) cognitive reactivity (changes in mood reactivate negative beliefs)—could be understood in terms of perceptual and metacognitive processes that draw on specific computational mechanisms of the “Bayesian brain.” Importantly, the proposed theory can be tested experimentally, using a combination of behavioral paradigms, computational modelling, and neuroimaging. The novel theoretical perspective on MBCT described in this paper may offer opportunities for finessing the conceptual and practical aspects of MBCT.

Strong coupling of hybrid system between semiconductor quantum dots and superconducting resonator

<p indent=0mm>Quantum computing is a powerful way of improving computing efficiency. For some specific problems, quantum processor can exponentially reduce computation time compared to the classical computer. Cavity quantum electrodynamics, which studies the coherent interaction between photons in an optical cavity and atoms or other two-level systems, is of enormous significance to quantum computing and quantum information processing. The strong coupling regime where a cavity photon mode and an atom exchange a single quantum energy coherently has attracted extensive interest in varied experimental platforms and systems such as alkali atoms, Rydberg atoms, large spin ensembles, magnons, etc. The semiconductor gate-defined double quantum dot (DQD) system is one of the most promising platforms that possesses advantages of advanced micro-nano processing technology and outstanding scalability. Introducing the concept of cavity QED into superconducting circuits (circuit QED, cQED), provides an opportunity to study interaction between electrons confined in semiconductor DQD and photons trapped in a superconducting resonator. Reaching strong coupling regime in this hybrid system paves the way to large-scale network of quantum computing. Electrons confined in DQD have large electrical dipoles, thus are able to couple to photons with relatively large coupling rate. Whereas, due to the charge noise and other dissipation channels in the hybrid system, the decoherence rate of the system is larger than the coupling rate, leaving the strong coupling a great challenge. In recent years, different methods have been proposed to access the strong coupling regime. Taking advantage of a high-quality heterojunction structure, an overlapping gate architecture and a low-pass LC filter on the DC bias line, the decoherence of the charge qubit and microwave leakage of the resonator can be effectively suppressed. The coupling strength of the hybrid system can be improved utilizing a high impedance resonator which is comprised of high kinetic inductance materials. Spin, which does not interact directly with the electric field, is insensitive to charge noise and has much longer decoherence time than charge qubit. However, the weak interaction results in a small coupling rate between the spin and the photon. To solve this problem, the method of coherent hybridization between the spin and the charge state is proposed to improve the coupling strength. This hybridization can be achieved by applying a non-uniform magnetic field, utilizing spin-orbit interaction or spin exchange interaction. At present, both charge qubits and spin qubits have achieved strong coupling with the cavity and the coupling distance between long-range qubits is greatly expanded as long as millimeters. This review introduces basic ideas about cQED and fundamental elements in semiconductor cQED systems. Recent progress in strong coupling hybrid system and methods for improving coupling structures are discussed. In future research, more efforts will be devoted into long-range transfer of qubit states and photon-mediated two or multi-qubit gates.

Plasmonic transmitted optical differentiator based on the subwavelength gold gratings.

A nanoscale plasmonic optical differentiator based on subwavelength gold gratings is investigated theoretically and experimentally without Fourier transform lenses and prisms. In the vicinity of surface plasmon resonance (SPR), the transfer function of subwavelength gold gratings is derived by optical scattering matrix theory. Simulated by the finite difference time domain (FDTD) method, the wavelengths of optical spatial differentiation performed by subwavelength gold gratings are tuned by the grating period and duty cycle, while the throughput of edge extraction is mainly adjusted by the grating thickness. Without Fourier transformation, the fabricated plasmonic optical differentiator experimentally achieves real-time optical spatial differentiation in transmission and implements SPR enhanced high-throughput edge extraction of a microscale image with a resolution of 10 µm at 650 nm, which has potential applications in areas of optical analog computing, optical imaging, and optical information processing.

Russia's Cyber and Information Warfare

Russia's Cyber and Information Warfare Valeriy Akimenko (bio) and Keir Giles (bio) Russia's exercise of cyberpower forms an integral part of the far broader concept known as information warfare. The key principle of the Russian approach to information warfare, including cyber activities, is that information is the most important object of operations, independent of the channel through which it is transmitted. The aim is to control—or weaponize—information in whatever form it takes. Thus, "cyber" in particular is just a technical representation of information. In short, in Russia's comprehensive approach to the information domain, cyber is not a stand-alone discipline. This principle underpins all Russian efforts to extract, exfiltrate, manipulate, distort, or insert information. Alongside cyber activities, the channels available for doing this are as diverse as using fake or real news media to plant disinformation, trolling campaigns, issuing official government statements, giving speeches at rallies or demonstrations, posting defamatory online videos, and sending direct text messages. Russian information activities are not limited to cyberspace. Rather than using the term "cyberspace," Russian officials refer to "information space," which includes both computer and human information processing.1 This essay starts with an explanation of the terminological, doctrinal, and practical distinguishing features of Russian cyber activities as part of information warfare. It goes on to look at a number of Russia's agencies and capabilities involved in the prosecution of cyber activities, both offensive and defensive. In conclusion, the essay emphasizes the main implication of this distinctive approach: the need for nations to prepare a broad range of defenses against Russia's holistic approach to offensive cyber, information warfare, and other forms of hostile online activity. [End Page 67] Terminology, Strategy, and Doctrine Russia's approach to defining a doctrine for computer network operations is determined by the core concept of "information confrontation" (or "information war") and includes all hostile activities using information as a tool, target, or domain of operations. The concept implies computer network operations alongside disciplines such as psychological operations, strategic communications, influence, intelligence, maskirovka (military deception), disinformation, electronic warfare, debilitation of communications, degradation of navigation support, and destruction of enemy computer capabilities. The aim is "to influence the perception and behavior of the enemy, population, and international community."2 Russia sees superiority in this broad application of information warfare as a key enabler for victory in current and future conflicts: Wars will be resolved by a skillful combination of military, nonmilitary, and special nonviolent measures that will be put through by a variety of forms and methods and a blend of political, economic, informational, technological, and environmental measures, primarily by taking advantage of information superiority. Information warfare in the new conditions will be the starting point of every action now called the new type of warfare, or hybrid war, in which broad use will be made of the mass media and, where feasible, global computer networks (blogs, various social networks, and other resources).3 Russian cyber terminology "Cyber" as a separate function or domain is not a Russian concept.4 The delineation of activities in the cyber domain from other activities processing, attacking, disrupting, or stealing information is seen as artificial. The phrase "cyber warfare" in Russian writing is used to describe foreign concepts and activities. The closest that Russian thinking comes to separating out computer network operations from other activities is the division between the information-technological and information-psychological domains, the two main strands of information warfare.5 [End Page 68] Cyber activities, however, do not map directly to the information-technological domain: as an integral part of information warfare overall, they are also inherent in information-psychological operations. Importantly, moreover, information-psychological operations are undertaken "permanently"—regardless of the notional state of cooperation or hostility between the opposing sides. Multiple senior Russian officials have emphasized that open conflict need not have been declared for hostile activity in the information space to begin.6 Information security doctrine It follows that Russia does not have publicly released national strategies relating specifically to its cyber activities. The closest approximation is the Information Security Doctrine. The most recent iteration of this document, approved in December 2016, follows a line adopted in previous strategic documents...

Pattern Recognition and Its Application in Image Processing

With the continuous improvement of China’s national economy and the unprecedented innovation and development of modern science and technology, artificial intelligence technology has been widely used in China’s industrial production, power transportation, aerospace and other fields. As an extension of modern artificial intelligence technology, pattern recognition technology plays an important role in modern computer image processing by virtue of its own intelligence and automation. It fundamentally guarantees the accuracy of image processing and greatly improves computer image recognition and information processing. Overall work efficiency. This paper mainly analyses the main characteristics of pattern recognition technology, and further studies the practical application of pattern recognition technology in image processing, hoping to provide corresponding reference for the future application and development of pattern recognition technology in image processing.

Arbitrary-order optical differentiation in refection by sequence of first-order differentiators

We propose a simple analytical method for designing arbitrary-order optical differentiators operating in reflection by successively arranging several first-order optical differentiators. The approach is based on the scattering matrix analysis, does not involve numerical optimization and is valid for differentiators of arbitrary configurations. The numerical simulation results demonstrate high-quality differentiation of a picosecond pulse for up to the fourth order. The proposed method can find application in the design of analogue optical computing and optical information processing systems.

Single-electron pumping in a ZnO single-nanobelt quantum dot transistor

Diluted magnetic semiconductors (DMSs) have traditionally been employed to implement spin-based quantum computing and quantum information processing. However, their low Curie temperature is a major hurdle in their use in this field, which creates the necessity for wide bandgap DMSs operating at room temperature. In view of this, a single-electron transistor (SET) with a global back-gate was built using a wide bandgap ZnO nanobelt (NB). Clear Coulomb oscillations were observed at 4.2 K. The periodicity of the Coulomb diamonds indicates that the Coulomb oscillations arise from single quantum dots of uniform size, whereas quasi-periodic Coulomb diamonds correspond to the contribution of multi-dots present in the ZnO NB. By applying an AC signal to the global back-gate across a Coulomb peak with varying frequencies, single-electron pumping was observed; the increase in current was equal to the production of electron charge and frequency. The current accuracy of about 1% for both single- and double-electron pumping was achieved at a high frequency of 25 MHz. This accurate single-electron pumping makes the ZnO NB SET suitable for single-spin injection and detection, which has great potential for applications in quantum information technology.

Tunable optical bistability in multi-mode optomechanical systems

Optical bistability has been studied theoretically in a multi-mode optomechanical system with two mechanical oscillators independently coupled to two coupled cavities. It is found that the multi-mode optomechanical system allows one to control the optical bistability in a much more flexible way. Specifically, the bistable behavior of the mean intracavity photon number in one cavity can be tuned by the strength and frequency of the pump laser beam driving another cavity. Meanwhile, it is also found that the coupling between the two cavities and the coupling between mechanical oscillators and cavities can effectively affect the optical bistability behavior in a sensitive manner. Moreover, the mechanical steady-state position exhibits clear bistability in the situation of relatively lower phonon number, and it exhibits more controllability as well. This investigation on optical bistability in multi-mode optomechanical systems will have promising applications in optical quantum computing and quantum information processing.

The Application of Computer Information Processing Technology in the Design of School Examination System

The Application of Computer Information Processing Technology in the Design of School Examination System

Retraction: How to Safely and Efficiently Perform Big Data Computer Information Processing (J. Phys.: Conf. Ser. 1449 012066)

This article has been retracted by IOP Publishing following an allegation that raises concerns this article may have been created, manipulated, and/or sold by a commercial entity. In addition, IOP Publishing has seen no evidence that reliable peer review was conducted on this article, despite the clear standards expected of and communicated to conference organisers. The authors of the article have been given opportunity to present evidence that they were the original and genuine creators of the work, however at the time of publication of this notice, IOP Publishing has not received any response. IOP Publishing has analysed the article and agrees there are enough indicators to cause serious doubts over the legitimacy of the work and agree this article should be retracted. The authors are encouraged to contact IOP Publishing Limited if they have any comments on this retraction. Retraction published: 23 September 2022

How to Safely and Efficiently Perform Big Data Computer Information Processing

In the era of big data, to ensure information security and avoid information leakage, it is necessary to fully handle computer information security. We should focus on improving computer hardware and software equipment, in order to improve network virus defense systems, and continuously improve data collection technology, communication technology, storage technology and security management technology. This article will systematically discuss how to safely and efficiently perform big data computer information processing and present personal insights.

How carbon vacancies can affect the properties of group IV color centers in diamond: A study of thermodynamics and kinetics

Recently, there has been much interest in using Group IV elements from the periodic table to fabricate and study XV color centers in diamond, where X=Si, Ge, Sn, or Pb and V is a carbon vacancy. These Group IV color centers have a number of interesting spin and optical properties, which could potentially make them better candidates than NV− centers for important applications in quantum computing and quantum information processing. Unfortunately, the very same ion implantation process that is required to create these XV color centers in diamond necessarily also produces many carbon vacancies (VC), which can form complexes with these color centers (VC−XV) that can dramatically affect the properties of the isolated XV color centers. The main focus of this work is to use density-functional theory to study the thermodynamics and kinetics of the formation of these VC−XV complexes and to suggest experimental ways to impede this process such as varying the Fermi level of the host diamond material through chemical doping or applying an external electrical bias. We also include a discussion of how the simple presence of many VC can negatively impact the spin coherence times (T2) of Group IV color centers through the presence of acoustic phonons.

Quantum Computation in a Human Environment

In the present article, we discuss quantum computation by incorporating the quantum mechanical phenomena to our everyday world. While traditional computers are the consequence of the mechanical synthesis of human body and mind acts in an embodied reality, quantum computation is the consequence of translating a subatomic scaled reality into human acts. Quantum computers are based on quantum mechanics that encompasses properties such as superposition, entanglement and reversibility of time. These properties enable computer information processing and memory to be transformed into a quantum superposition of qubit states, that opens up for numerous potential future applications. As with every new technology, the development of quantum computers is embedded in expectations, a phenomenon that historically has been shown to be problematic. These expectations generate the idea of the supremacy of the technology which hides the importance of the human environment in which the new technology will be applied. This article aims to place these expectations in a human context to show that in fact for every case, it is more a matter of human supremacy than supremacy of the technology being developed.

The Opportunity and Development of Computer Information Processing Technology in the Age of Big Data

Researching the opportunities and development of computer information processing technology in the context of big data era is the key to ensuring that such technologies can meet the development needs of the industry and avoid being eliminated.Firstly, this paper will briefly introduce the concept of big data and computer information processing technology, and then the opportunities and challenges faced by computer information processing technology in the era of big data are analyzed. The last part mainly combines these contents to propose the future development of computer processing technology.

Security Analysis of Computer Information Processing Technology under the Background of Big Data Era

With the development of science and technology, society has entered the era of big data, and data information has been shown to be open, which has played a role in optimizing data calculation mode and improving data utilization efficiency. At the same time, computer information processing problems are also suffering. attention. This paper will take the school computer information processing technology security work as an example to analyze the computer information processing technology security management scheme under the background of big data era, and put forward personal opinions, hoping to provide reference solutions for computer information processing technology security management.

Discrete cosine transformation as a means of computer processing of information

Discrete cosine transformation as a means of computer processing of information