Results 11 to 20 of about 75,600 (123)

Crosstalk analysis for simultaneously driven two-qubit gates in spin qubit arrays [PDF]

open access: yes, 2021
One of the challenges when scaling up semiconductor-based quantum processors consists in the presence of crosstalk errors caused by control operations on neighboring qubits. In previous work, crosstalk in spin qubit arrays has been investigated for non-driven single qubits near individually driven quantum gates and for two simultaneously driven single ...
arxiv   +1 more source

Robust shaped pulses for arrays of superconducting or semiconductor spin qubits with fixed Ising coupling [PDF]

open access: yesPhys. Rev. A 109, 032605 (2024), 2023
A major current challenge in solid-state quantum computing is to scale qubit arrays to a larger number of qubits. This is hampered by the complexity of the control wiring for the large number of independently tunable interqubit couplings within these arrays.
arxiv   +1 more source

A Four-Context Programmable Optically Reconfigurable Gate Array With a Reflective Silver-Halide Holographic Memory

open access: yesIEEE Photonics Journal, 2011
This paper presents a proposal for a four-context programmable optically reconfigurable gate array (PORGA) with a high-resolution reflective silver-halide holographic memory and a corresponding writer system.
Shinya Kubota, Minoru Watanabe
doaj   +1 more source

Implementing EW Receivers Based on Large Point Reconfigured FFT on FPGA Platforms [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
This paper presents design and implementation of digital receiver based on large point fast Fourier transform (FFT) suitable for electronic warfare (EW) applications.
He Chen   +3 more
doaj   +1 more source

Efficient orthogonal control of tunnel couplings in a quantum dot array [PDF]

open access: yesPhys. Rev. Applied 13, 054018 (2020), 2020
Electrostatically-defined semiconductor quantum dot arrays offer a promising platform for quantum computation and quantum simulation. However, crosstalk of gate voltages to dot potentials and inter-dot tunnel couplings complicates the tuning of the device parameters.
arxiv   +1 more source

Field programmable gate array–based servo control integrated chip for a six-axis articulated robot manipulator

open access: yesAdvances in Mechanical Engineering, 2016
The objective of this article is to build a field programmable gate array–based six-axis servo control integrated chip which can integrate the function of a motion trajectory planning and the function of six position/speed/current servo controllers into ...
Ying-Shieh Kung   +3 more
doaj   +1 more source

Quantum circuits with uniformly controlled one-qubit gates [PDF]

open access: yesPhys. Rev. A 71, 052330 (2005), 2004
Uniformly controlled one-qubit gates are quantum gates which can be represented as direct sums of two-dimensional unitary operators acting on a single qubit. We present a quantum gate array which implements any n-qubit gate of this type using at most 2^{n-1} - 1 controlled-NOT gates, 2^{n-1} one-qubit gates and a single diagonal n-qubit gate.
arxiv   +1 more source

Real-time object tracking system based on field-programmable gate array and convolution neural network

open access: yesInternational Journal of Advanced Robotic Systems, 2016
Vision-based object tracking has lots of applications in robotics, like surveillance, navigation, motion capturing, and so on. However, the existing object tracking systems still suffer from the challenging problem of high computation consumption in the ...
Congyi Lyu   +4 more
doaj   +1 more source

Parallelized Particle Swarm Optimization on FPGA for Realtime Ballistic Target Tracking

open access: yesSensors, 2023
This paper addresses the problem of tracking a high-speed ballistic target in real time. Particle swarm optimization (PSO) can be a solution to overcome the motion of the ballistic target and the nonlinearity of the measurement model. However, in general,
Juhyeon Park   +4 more
doaj   +1 more source

Scalable quantum computation with fast gates in two-dimensional microtrap arrays of trapped ions [PDF]

open access: yesPhys. Rev. A 102, 012618 (2020), 2020
We theoretically investigate the use of fast pulsed two-qubit gates for trapped ion quantum computing in a two-dimensional microtrap architecture. In one dimension, such fast gates are optimal when employed between nearest neighbours, and we examine the generalisation to a two-dimensional geometry.
arxiv   +1 more source

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