Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä

Tutkielmassa käydään läpi miten Schrödingerin aaltoyhtälö voidaan ratkaista numeerisesti. Käydään kaksi eri menetelmää, keskeisdifferenssimentelmä, sekä yleistetty keskeisdifferenssimenetelmä. Menetelmille käydään läpi miten aaltoyhtälö voidaan diskretoida, määritellään absorptiorajat, sekä stabiili...

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Main Author: Heikkinen, Janne
Other Authors: Informaatioteknologian tiedekunta, Faculty of Information Technology, Informaatioteknologia, Information Technology, Jyväskylän yliopisto, University of Jyväskylä
Format: Bachelor's thesis
Language:fin
Published: 2020
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/73159
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author Heikkinen, Janne
author2 Informaatioteknologian tiedekunta Faculty of Information Technology Informaatioteknologia Information Technology Jyväskylän yliopisto University of Jyväskylä
author_facet Heikkinen, Janne Informaatioteknologian tiedekunta Faculty of Information Technology Informaatioteknologia Information Technology Jyväskylän yliopisto University of Jyväskylä Heikkinen, Janne Informaatioteknologian tiedekunta Faculty of Information Technology Informaatioteknologia Information Technology Jyväskylän yliopisto University of Jyväskylä
author_sort Heikkinen, Janne
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description Tutkielmassa käydään läpi miten Schrödingerin aaltoyhtälö voidaan ratkaista numeerisesti. Käydään kaksi eri menetelmää, keskeisdifferenssimentelmä, sekä yleistetty keskeisdifferenssimenetelmä. Menetelmille käydään läpi miten aaltoyhtälö voidaan diskretoida, määritellään absorptiorajat, sekä stabiilisuusehdot. Molemmilla menetelmillä saadaan pieni virhe ja pidettyä ratkaisu stabiilisena, mutta kirjallisuudesta löytyy mahdollisesti parempia menetelmiä eri tilanteisiin. In this Bachelor’s thesis we go through how you can solve Schrödinger’s equation numerically. We go through two methods, finite-difference time-domain method and generalized finite-difference time-domain method. We go through how to discretize Schrödinger’s equation, define absorbing boundary conditions and stability conditions. Both methods can achieve low error and stable results but there are potentially better methods depending on the circumastances
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spellingShingle Heikkinen, Janne Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä keskeisdifferenssimenetelmä yleistetty keskeisdifferenssimenetelmä absorptiorajat Tietotekniikka Mathematical Information Technology 602 kvanttimekaniikka yhtälöt fysiikka
title Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
title_full Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
title_fullStr Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
title_full_unstemmed Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
title_short Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
title_sort schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
title_txtP Schrödingerin yhtälön ratkaiseminen keskeisdifferenssimenetelmillä
topic keskeisdifferenssimenetelmä yleistetty keskeisdifferenssimenetelmä absorptiorajat Tietotekniikka Mathematical Information Technology 602 kvanttimekaniikka yhtälöt fysiikka
topic_facet 602 Mathematical Information Technology Tietotekniikka absorptiorajat fysiikka keskeisdifferenssimenetelmä kvanttimekaniikka yhtälöt yleistetty keskeisdifferenssimenetelmä
url https://jyx.jyu.fi/handle/123456789/73159 http://www.urn.fi/URN:NBN:fi:jyu-202012157106
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