Advertisement
Published in:
2014 | OriginalPaper | Chapter
A Numerical Solution for Wootters Correlation
Authors : Abdul Hissami, Alberto Pretel, E. Tamura
Published in: High Performance Computing
Publisher: Springer Berlin Heidelberg
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
This paper describes QDsim, a parallel application designed to compute the quantum concurrence by calculating the Wootters correlation of a quantum system. The system is based on a two-level two quantum dots inside a resonant cavity. A Beowulf-like cluster was used for running QDsim. The application was developed using open, portable and scalable software and can be controlled via a GUI client from a remote terminal over either the Internet or a local network. A serial version and three parallel models (shared memory, distributed memory and hybrid –distributed/shared memory) using two different partitioning schemes were implemented to assess their performance. Results showed that the hybrid model approach using domain decomposition achieves the highest performance (12.2
X
speedup in front of the sequential version) followed by the distributed memory model (6.6
X
speedup). In both cases, the numerical error is within 1×10
− 4
, which is accurate enough for estimating the correlation trend.