We propose an efficient protocol for digital quantum simulation of quantum chemistry problems and enhanced digital-analog quantum simulation of transport phenomena in biomolecules with superconducting circuits. Along these lines, we optimally digitize fermionic models of molecular structure with single-qubit and two-qubit gates, by means of Trotter-Suzuki decomposition and Jordan-Wigner transfo...

Recent technological advances in wireless communications offer new opportunities and challenges for relay network. To enhance system performance, Demodulate-Network Coding (Dm-NC) scheme has been examined at relay node; it works directly to De-map the received signals and after that forward the mixture to the destination. Simulation analysis has been proven that the performance of Dm-NC has sup...

Abstract Mental rotation is a hypothesized imagery process that has inspired controversy regarding the substrate of human spatial reasoning. Two central questions about mental rotation remain: Does mental rotation depend on analog spatial representations, and does mental rotation depend on motor simulation? A review and meta-analysis of neuroimaging studies help answer these questions. Mental r...

We investigated whether people can use analog imagery to model the behavior of a simple mechanical interaction. Subjects saw a static computer display of two touching gears that had different diameters. Their task was to determine whether marks on each gear would meet if the gears rotated inward. This task added a problem of coordination to the typical analog rotation task in that the gears had...

This paper considers the contributions of one outstanding as well as controversial researcher, teacher and inventor from Spain during the Francos ́s dictatorship. The paper presents an overview of the most important contributions made by Prof. Angel Gonzalez del Valle related with the electric networks/circuits theory and its application to analog computing/simulation, which was achieved from fo...

We explore the simulation and computational capabilities of discrete and continuous dynamical systems. We introduce and compare several notions of simulation between discrete and continuous systems. We give a general framework that allows discrete and continuous dynamical systems to be considered as computational machines. We introduce a new discrete model of computation: the analog automaton m...

Verilog-AMS is one of the major mixed-signal hardware description languages on today’s market. In addition to the extended capabilities to model analog and digital behavior, the language supports a novel approach to merge existing digital and analog designs without rewriting the individual designs. At the center of this approach is the connect module and the connection rules. These language fea...

The linearity of the CMOS is of major concern in the design of many analog circuits. In this paper the nonlinearity behavior of CMOS analog integrated circuits is investigated.The basic building block of analog integrated circuits such as differential amplifier with current mirror load have been chosen for harmonic distortion analysis.A mechanism to analyze the distortion of CMOS circuits in de...

Continued scaling of CMOS technology affects both, the parameters and the characteristics of MOSFET and the integrated circuit built on them and introduces some new problems in analog design. The reduction of the gate length and the gate oxide thickness led to improvements in terms of chip area, speed and power consumption. At the same time, nonlinear output conductance, reduced voltage gain an...

A study and comparison between current mode CMOS analog multiplier, CMOS current mode multiplier/divider and high frequency four quadrant current multiplier has been carried out in this paper. Current multiplier has been simulated in SPICE with 0.35μm, 0.5μm. Simulation have been done with supply voltage of 3.3V, 1.5V and 1.55V respectively. The simulated results show that characteristic of mul...