Lasers pumped Quantum Dynamics in Nanostructured arrays for Computing A. Donval, N. Gross, M. Oron KiloLambda Technologies, Ltd., 22a Raoul Wallenberg St., Tel Aviv 6971918, Israel. Tel: +972-3-6497662, adonval@kilolambda.com ABSTRACT Quantum computation uses qubit in superposition and entanglement states providing more sophisticated computation ability regarding today’s computers. For that purpose of developing a novel computer concept exploiting quan tum dynamics at the nanoscale, we joined an EC H2020 program consortium named COPAC [1]. We propose to analyze the nonlinear 2 dimensional optical response of assembled nanostructures in solid arrays to a sequence of short laser pulses. Based on 2D maps of the stimulated emission we implement a novel paradigm for parallel information processing. Within the COPAC project, we, in KiloLambda, will develop the device nanostructure and engineering design. Keywords: Quantum computer, nanostructure, nanophotonics, parallel information processing 1. INTRODUCTION Quantum computing makes direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computation uses quantum bits, qubit, which can be in superposition of states as opposed to common digital computing that required the data be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1). Using these two principles (superposition and entanglement), qubits can act as more sophisticated switches, enabling quantum computers to function in ways that allow them to solve difficult problems that are intractable using today’s computers. Some of the long term applications for quantum computers can be simulation of physical processes such as photosynthesis, opening new frontiers in green energy, or pushing artificial intelligence to a vastly higher level of sophistication. In order to realize this vision, we need first to figure out how to actually build a working concept of a quantum computer that can perform more than the simplest operations. We joined an EC H2020 consortium named Coherent Optical PArallel Computing (COPAC) [1] for developing a novel concept of a computer exploiting quantum confinement and non linear optics. We plan to use the dynamic response of assembled nanostructures in solid arrays to short laser pulses and implement a novel paradigm for parallel information processing. The discrete quantal level structure of nanosystems provides a memory at room temperature. Inputs are delivered simultaneously to all the levels by broadband laser pulses and the dynamical response implements the logic in parallel. 1.1 Coherent Optical PArallel Computing (COPAC) COPAC is a transformative novel area in computing both because of the technology, coherent photonics and because of the specialized parallel processing of large amounts of information. In the COPAC consortium, we will make foundational experimental, theoretical and algorithmic innovations to demonstrate a new technological paradigm for ultrafast parallel multi-valued information processing. We aim to develop a ground-breaking nonlinear coherent spectroscopy combining optical addressing by short laser pulse sequences and spatially macroscopically resolved optical readout to achieve unprecedented levels of speed, density and complexity. Two key high-risk / high-reward pioneering elements are the quantum engineered coherent concatenation of units and the multidirectional optical detection. Background papers on theoretical models and simulations by Fresch et al and Yan et al are presented in ref no.2 and no.3. Experimental demonstrations on molecules [4,5] and tailored nanosystems [6,7] in self-assembled arrays of