Title
Qurzon: A Prototype for a Divide and Conquer-Based Quantum Compiler for Distributed Quantum Systems
Abstract
When working with algorithms on quantum devices, quantum memory becomes a crucial bottleneck due to low qubit count in NISQ-era devices. In this context, the concept of ‘divide and compute’, wherein a quantum circuit is broken into several subcircuits and executed separately, while stitching the results of the circuits via classical post-processing, becomes a viable option, especially in NISQ-era devices. This paper introduces Qurzon, a proposed novel quantum compiler that incorporates the marriage of techniques of divide and compute with the state-of-the-art algorithms of optimal qubit placement for executing on real quantum devices. A scheduling algorithm is also introduced within the compiler that can explore the power of distributed quantum computing while paving the way for quantum parallelism for large algorithms. Several benchmark circuits have been executed using the compiler, thereby demonstrating the power of the divide and compute when working with real NISQ-era quantum devices.
Year
DOI
Venue
2022
10.1007/s42979-022-01207-9
SN Computer Science
Keywords
DocType
Volume
Quantum computing, Distributed systems, Compilers, Divide, Conquer
Journal
3
Issue
ISSN
Citations 
4
2661-8907
0
PageRank 
References 
Authors
0.34
4
5
Name
Order
Citations
PageRank
Turbasu Chatterjee100.34
Arnav Das200.34
Shah Ishmam Mohtashim300.34
Amit Saha432.76
Amlan Chakrabarti501.35