Digital Signal Processing

1910 Submissions

[4] viXra:1910.0539 [pdf] submitted on 2019-10-26 07:29:41

Antiferromagnetic Computers

Authors: George Rajna
Comments: 73 Pages.

Future computer technology based on insulating antiferromagnets is progressing. Electrically insulating antiferromagnets such as iron oxide and nickel oxide consist of microscopic magnets with opposite orientations. [47] In research published in The European Physical Journal B, José M. Cabrera-Trujillo and colleagues at the Autonomous University of San Luis Potosí in Mexico propose a new method of identifying the morphologies of atomic clusters. [46] An international research team led by a physicist at the University of California, Riverside, has identified a microscopic process of electron spin dynamics in nanoparticles that could impact the design of applications in medicine, quantum computation, and spintronics. [45]
Category: Digital Signal Processing

[3] viXra:1910.0532 [pdf] submitted on 2019-10-25 22:15:10

Preprocessing Quaternion Data in Quaternion Spaces Using the Quaternion Domain Fourier Transform

Authors: Eckhard Hitzer
Comments: 6 Pages. Proceedings of SICE Symposium on Systems and Information 2014 (SSI 2014), Session SS13-6, catalog No. SY0009/14/0000-0834©2014 SICE, Okayama University, Okayama, Japan, 21-23 Nov. 2014, pp. 834-839.

Recently a new type of hypercomplex Fourier transform has been suggested. It consequently transforms quaternion valued signals (for example electromagnetic scalar-vector potentials, color data, space-time data, etc.) defined over a quaternion domain (space-time or other 4D domains) from a quaternion ”position” space to a quaternion ”frequency” space. Therefore the quaternion domain Fourier transform (QDFT) uses the full potential provided by hypercomplex algebra in higher dimensions, such as 3D and 4D transformation covariance. The QDFT is explained together with its main properties relevant for applications such as quaternionic data preprocessing.
Category: Digital Signal Processing

[2] viXra:1910.0173 [pdf] submitted on 2019-10-11 06:38:15

Compiler Quantum Computing

Authors: George Rajna
Comments: 92 Pages.

A new paper from researchers at the University of Chicago introduces a technique for compiling highly optimized quantum instructions that can be executed on near-term hardware. [56] Scientists from the University of Bath, working with a colleague at the Bulgarian Academy of Sciences, have devised an ingenious method of controlling the vapour by coating the interior of containers with nanoscopic gold particles 300,000 times smaller than a pinhead. [55] Significant technical and financial issues remain towards building a large, fault-tolerant quantum computer and one is unlikely to be built within the coming decade. [54] Chemists at Friedrich Schiller University in Jena (Germany) have now synthesised a molecule that can perform the function of a computing unit in a quantum computer. [53] The research team developed the first optical microchip to generate, manipulate and detect a particular state of light called squeezed vacuum, which is essential for HYPERLINK "https://phys.org/tags/quantum/" quantum computation. [52] Australian scientists have investigated new directions to scale up qubits-utilising the spin-orbit coupling of atom qubits-adding a new suite of tools to the armory. [51] A team of international researchers led by engineers from the National University of Singapore (NUS) have invented a new magnetic device to manipulate digital information 20 times more efficiently and with 10 times more stability than commercial spintronic digital memories. [50] Working in the lab of Mikhail Lukin, the George Vasmer Leverett Professor of Physics and co-director of the Quantum Science and Engineering Initiative, Evans is lead author of a study, described in the journal Science, that demonstrates a method for engineering an interaction between two qubits using photons. [49] Researchers with the Department of Energy's Oak Ridge National Laboratory have demonstrated a new level of control over photons encoded with quantum information. [48] Researchers from Intel Corp. and the University of California, Berkeley, are looking beyond current transistor technology and preparing the way for a new type of memory and logic circuit that could someday be in every computer on the planet. [47]
Category: Digital Signal Processing

[1] viXra:1910.0140 [pdf] submitted on 2019-10-09 09:15:16

Remote Sensing and Computer Science

Authors: Alex Charria
Comments: 7 Pages.

The implications of optimal archetypes have been far-reaching and pervasive. In fact, few analysts would disagree with the visualization of neural networks. While such a hypothesis is largely an appropriate objective, it is supported by existing work in the field. Our focus in this paper is not on whether A* search can be made peer-to-peer, pseudorandom, and pseudorandom, but rather on presenting a real-time tool for visualizing RAID [1]
Category: Digital Signal Processing