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ACM International Conference on Nanoscale Computing and Communication (NANOCOM)

Quantum Memory Management Systems

Caglar Koca, Özgür B. Akan

Published Sep 21, 2015• 1 citation
Publisher

Abstract

Quantum computation is a developing area in science. Owing to the new developments in nanotechnology, some practical quantum computing applications are emerging. Even though quantum computation possesses many inherent superiorities, it suffer from a tight bottleneck: Quantum Storage. In this paper, we identify properties of a good quantum storage unit and propose unique quantum memory structures and discuss them in terms of circuit complexity, access delay complexity, maximum connectivity and ancillary qubits required. We reveal that quantum teleportation provide advantage only in maximum connectivity among the properties we analyzed.

DOI
10.1145/2800795.2800810

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Memory is an indispensable component in classical computing systems. While the development of quantum computing is still in its early stages, current quantum processing units mainly function as quantum registers. Consequently, the actual role of quantum memory in future advanced quantum computing architectures remains unclear. With the rapid scaling of qubits, it is opportune to explore the potential and feasibility of quantum memory across different substrate device technologies and application scenarios. In this paper, we provide a full design stack view of quantum memory. We start from the elementary component of a quantum memory device, quantum memory cells. We provide an abstraction to a quantum memory cell and define metrics to measure the performance of physical platforms. Combined with addressing functionality, we then review two types of quantum memory devices: random access quantum memory (RAQM) and quantum random access memory (QRAM). Building on top of these devices, quantum memory units in the computing architecture, including building a quantum memory unit, quantum cache, quantum buffer, and using QRAM for the quantum input-output module, are discussed. We further propose the programming model for the quantum memory units and discuss their possible applications. By presenting this work, we aim to attract more researchers from both the Quantum Information Science (QIS) and classical memory communities to enter this emerging and exciting area.
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Quantum is an emerging technology with constant research efforts in its various fields. One of the distinct advantage with the quantum technology is the use of qubits which gives inherent parallelism and security. However, at the same time qubits poses unique challenges due to their quantum properties. Quantum computation can further be enhanced with the use of quantum memory. In this paper we propose a technique to access stored quantum state multiple times or by multiple users at same instance.
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