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Paper Abstract and Keywords
Presentation 2022-06-23 10:05
Extension of Dirac equation by the charge creation-annihilation field and simulation for formation process of atomic orbitals by FDTD method
Hideki Mutoh (Link Research) EMT2022-1
Abstract (in Japanese) (See Japanese page) 
(in English) We have reported that Maxwell's equations should be extended by using the charge creation-annihilation field to treat the charge generation-recombination in semiconductors and Dirac equation should be also extended to be written as same as Maxwell's equations and shown that Dirac field propagation can be stably simulated by FDTD method with extending Dirac equation from 4-elements to 8-elements. In this paper, we report that we succeeded to simulate the formation process of atomic orbitals based on the extended Dirac equation by FDTD method without any physical approximation for the first time in the world. A small unstable orbital appears at first and rapidly grows and finally becomes to a large stable orbital with the same radius as Bohr radius divided by the atomic number given by Schrödinger equation. The result could be regarded as a proof of correctness of the charge creation-annihilation field model.
Keyword (in Japanese) (See Japanese page) 
(in English) charge creation-annihilation field / Dirac equation / Maxwell's equations / FDTD method / atomic orbital / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 87, EMT2022-1, pp. 1-6, June 2022.
Paper # EMT2022-1 
Date of Issue 2022-06-16 (EMT) 
ISSN Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee EMT IEE-EMT  
Conference Date 2022-06-23 - 2022-06-23 
Place (in Japanese) (See Japanese page) 
Place (in English) The Institute of Electrical Engineers of Japan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Electromagnetic Theory, etc. 
Paper Information
Registration To EMT 
Conference Code 2022-06-EMT-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Extension of Dirac equation by the charge creation-annihilation field and simulation for formation process of atomic orbitals by FDTD method 
Sub Title (in English)  
Keyword(1) charge creation-annihilation field  
Keyword(2) Dirac equation  
Keyword(3) Maxwell's equations  
Keyword(4) FDTD method  
Keyword(5) atomic orbital  
1st Author's Name Hideki Mutoh  
1st Author's Affiliation Link Research Corporation (Link Research)
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Speaker Author-1 
Date Time 2022-06-23 10:05:00 
Presentation Time 25 minutes 
Registration for EMT 
Paper # EMT2022-1 
Volume (vol) vol.122 
Number (no) no.87 
Page pp.1-6 
Date of Issue 2022-06-16 (EMT) 

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