20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Calculation of Average Charge Number on the Single Electron Transistor by Quantum Monte Carlo Method

21 May 2015, 08:00
3h
Board: CON-01
Poster presentation Condensed Matter Physics Poster-2

Speaker

Mr Tawan Thongsuk (Theoretical Condensed Matter Physics Research Unit, Department of Physics, Faculty of Science, Mahasarakham University, Maha Sarakham, THAILAND 44150)

Description

The average charge number on the metallic single electron transistor due to the effect of Coulomb Blockade and Electron Tunneling at any temperature is calculated by using path integral Monte Carlo (PIMC) approaches. The results show that those effects are the most prominent at low temperatures, i.e. $\beta {E_C} > 1$. Additionally, the efficiencies of the Single Site Update Algorithm (SSU) and Fast Fourier Transform Algorithm (FFT) techniques are compared. We found that the FFT technique needed significantly less processing time that SSU method. In essence, the processing time of the FFT technique was approximately $38\%$ of that of the SSU method.

Primary author

Mr Tawan Thongsuk (Theoretical Condensed Matter Physics Research Unit, Department of Physics, Faculty of Science, Mahasarakham University, Maha Sarakham, THAILAND 44150)

Co-author

Dr Prathan Srivilai (Theoretical Condensed Matter Physics Research Unit, Department of Physics, Faculty of Science, Mahasarakham University, Maha Sarakham, THAILAND 44150)

Presentation Materials

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