تقرير
QTM: computational package using MPI protocol for quantum trajectories method
| العنوان: | QTM: computational package using MPI protocol for quantum trajectories method |
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| المؤلفون: | Sawerwain, Marek, Wiśniewska, Joanna |
| المصدر: | PLOS ONE, Vol. 13, No. 12, Pg. 1-21, 2018 |
| سنة النشر: | 2018 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | The Quantum Trajectories Method (QTM) is one of {the} frequently used methods for studying open quantum systems. { The main idea of this method is {the} evolution of wave functions which {describe the system (as functions of time). Then,} so-called quantum jumps are applied at {a} randomly selected point in time. {The} obtained system state is called as a trajectory. After averaging many single trajectories{,} we obtain the approximation of the behavior of {a} quantum system.} {This fact also allows} us to use parallel computation methods. In the article{,} we discuss the QTM package which is supported by the MPI technology. Using MPI allowed {utilizing} the parallel computing for calculating the trajectories and averaging them -- as the effect of these actions{,} the time {taken by} calculations is shorter. In spite of using the C++ programming language, the presented solution is easy to utilize and does not need any advanced programming techniques. At the same time{,} it offers a higher performance than other packages realizing the QTM. It is especially important in the case of harder computational tasks{,} and the use of MPI allows {improving the} performance of particular problems which can be solved in the field of open quantum systems. Comment: 28 pages, 9 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1371/journal.pone.0208263 |
| URL الوصول: | http://arxiv.org/abs/1810.03047 |
| رقم الأكسشن: | edsarx.1810.03047 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1371/journal.pone.0208263 |
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