Related Experiment Video
Updated: Feb 1, 2026
09:46
MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
Published on: May 10, 2012
13.1K
QTM: Computational package using MPI protocol for Quantum Trajectories Method
Marek Sawerwain1, Joanna Wiśniewska2
1Institute of Control & Computation Engineering, Faculty of Computer, Electrical and Control Engineering, University of Zielona Góra, Zielona Góra, Lubusz Voivodeship, Poland.
Plos One
|December 12, 2018
Summary
The Quantum Trajectories Method (QTM) uses wave function evolution and quantum jumps to simulate open quantum systems. A new C++ package with MPI enhances QTM performance for complex calculations.
Area of Science:
- Quantum Mechanics
- Computational Physics
- Open Quantum Systems
Background:
- The Quantum Trajectories Method (QTM) is a key technique for analyzing open quantum systems.
- QTM involves simulating wave function evolution punctuated by random quantum jumps.
- Averaging multiple trajectories approximates system behavior, enabling parallel computation.
Purpose of the Study:
- To introduce a new QTM package implemented in C++ and enhanced with Message Passing Interface (MPI) technology.
- To demonstrate the package's efficiency and ease of use for studying open quantum systems.
- To highlight performance improvements for computationally intensive tasks.
Main Methods:
- Implementation of the Quantum Trajectories Method using C++ programming language.
- Integration of Message Passing Interface (MPI) technology for parallel computation.
- Calculation and averaging of numerous quantum trajectories to approximate system dynamics.
Main Results:
- The developed QTM package significantly reduces computation time through parallel processing.
- The solution offers higher performance compared to existing QTM packages.
- The package is user-friendly, requiring no advanced programming expertise.
Conclusions:
- The MPI-supported QTM package provides an efficient and accessible tool for open quantum system research.
- This approach accelerates the simulation of complex quantum phenomena.
- The enhanced performance is particularly beneficial for demanding computational problems in quantum physics.
Related Concept Videos
02:43Quantum Numbers
50.0K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
50.0K
01:26Orthogonal Trajectories
60
Orthogonal trajectories describe the geometric relationship between two families of curves that intersect each other at right angles. One illustrative case involves a family of parabolas that open sideways along the x-axis. These curves share a common shape but differ by a scaling parameter, resulting in a set of curves that all pass through the origin and widen at different rates.Determining Orthogonal TrajectoriesTo identify the orthogonal trajectories for these parabolas, the first step...
60
00:58DNA Packaging
112.5K
Overview
112.5K
02:45The Quantum-Mechanical Model of an Atom
57.3K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
57.3K
01:32Chromatin Packaging
19.2K
Each human somatic cell contains 6 billion base pairs of DNA. Each base pair is 0.34 nm long, meaning each diploid cell contains a staggering 2 meters of DNA. This long DNA strand is packed inside a nucleus measuring only 10-20 microns in diameter with the help of specialized DNA-binding proteins called histones. Together they form a compact DNA-protein complex called chromatin. The chromatin is further compacted into higher-order structures. The highest level of compaction is achieved during...
19.2K
02:21Chromatin Packaging
22.1K
Each human somatic cell contains 6 billion base-pairs of DNA. Each base-pair is 0.34 nm long, which means that each diploid cell contains a staggering 2 meters of DNA. How is such a long DNA strand packed inside a nucleus measuring only 10 - 20 microns in diameter?
The chromatin
In combination with specialized DNA binding protein called Histones, the DNA double helix forms a compact DNA: protein complex called chromatin. The chromatin itself is further compacted into higher-order...
The chromatin
In combination with specialized DNA binding protein called Histones, the DNA double helix forms a compact DNA: protein complex called chromatin. The chromatin itself is further compacted into higher-order...
22.1K