Information transmission through a quantum information channel
This thesis report is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017.
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| フォーマット: | 学位論文 |
| 言語: | English |
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BARC University
2018
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| オンライン･アクセス: | http://hdl.handle.net/10361/9138 |
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10361-91382019-09-30T03:18:23Z Information transmission through a quantum information channel Ahmed, Tareq Majumdar, Dr. Mahbub Alam Department of Electrical and Electronic Engineering, BRAC University Quantum information channel Von Neumann entropy H Information transmission This thesis report is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017. Cataloged from PDF version of thesis. Includes bibliographical references (page 41). We consider the transmission of classical information over a quantum chan- nel. The channel is expressed by an alphabet of quantum states. For an example, we can express quantum states by photon polarization. For trans- mitting information, we use speci ed set of probabilities. If we nd that the receiver is unable to make separate measurement on the received letter then we have to use Holevo theorem. From this theorem we see that, in such case, the amount of information per letter we are sending cannot be larger than the Von Neumann entropy H of the letter ensemble. It happens most of the time that, the actual amount of information which will be transmitted is less than H. However if we use block coding scheme which has options to choose code words that respects the priori probabilities of the letter states then we nd a di erent situation. In this case the receiver distinguishes whole words rather than individual letters. In this way, the information transmitted per letter can be made arbitrarily close to H. Block coding scheme helps us to nd clear information of theoretical interpretation of Von Neumann entropy in quantum mechanics. We use this experiment in superdense coding and we consider this extension to noisy channels. Tareq Ahmed B. Electrical and Electronic Engineering 2018-01-22T09:53:10Z 2018-01-22T09:53:10Z 2017 2017-12 Thesis ID 15221011 http://hdl.handle.net/10361/9138 en BRAC University thesis is protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. 41 pages application/pdf BARC University |
| institution |
Brac University |
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Institutional Repository |
| language |
English |
| topic |
Quantum information channel Von Neumann entropy H Information transmission |
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Quantum information channel Von Neumann entropy H Information transmission Ahmed, Tareq Information transmission through a quantum information channel |
| description |
This thesis report is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017. |
| author2 |
Majumdar, Dr. Mahbub Alam |
| author_facet |
Majumdar, Dr. Mahbub Alam Ahmed, Tareq |
| format |
Thesis |
| author |
Ahmed, Tareq |
| author_sort |
Ahmed, Tareq |
| title |
Information transmission through a quantum information channel |
| title_short |
Information transmission through a quantum information channel |
| title_full |
Information transmission through a quantum information channel |
| title_fullStr |
Information transmission through a quantum information channel |
| title_full_unstemmed |
Information transmission through a quantum information channel |
| title_sort |
information transmission through a quantum information channel |
| publisher |
BARC University |
| publishDate |
2018 |
| url |
http://hdl.handle.net/10361/9138 |
| work_keys_str_mv |
AT ahmedtareq informationtransmissionthroughaquantuminformationchannel |
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