Method and apparatus for quantum-mechanically generating a random number
A method (100) and apparatus (200) for quantum-mechanically generating a random number based on polarization states of spontaneous parametric down- converted photons. The method (100) and apparatus (200) comprises a photon source (202) to generate a beam of photons (102), a first type-l nonlinear cr...
| Main Authors: | , , |
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| Format: | Patent |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/12215/ http://irep.iium.edu.my/12215/1/WO2010033013A3.pdf |
| _version_ | 1848777414287556608 |
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| author | , Suryadi Mohd Zain, Norzaliman Wahiddin, Mohamed Ridza |
| author_facet | , Suryadi Mohd Zain, Norzaliman Wahiddin, Mohamed Ridza |
| author_sort | , Suryadi |
| building | IIUM Repository |
| collection | Online Access |
| description | A method (100) and apparatus (200) for quantum-mechanically generating a random number based on polarization states of spontaneous parametric down- converted photons. The method (100) and apparatus (200) comprises a photon source (202) to generate a beam of photons (102), a first type-l nonlinear crystal (206) and a type-l second nonlinear crystal (207) to down-convert the beam of photons through spontaneous parametric down conversions to generate a pair of unidirectional beam of photons with random polarization states (104), characterized in that the first type-l nonlinear crystal (206) is adjacent to the second type-l nonlinear crystal (207) and optical axis of the first type-l nonlinear crystal (206) is orthogonal to optical axis of the second type-l nonlinear crystal (208), a polarized beam splitter (210) to split the pair of unidirectional beam of photons based on polarization states of the pair of unidirectional beam of photons into a beam of horizontally polarized photons and a beam of vertically polarized photons (106), a first detector (212) and a second detector (214) to detect the presence of the beam of horizontally polarized photons and the beam of vertically polarized photons respectively (108), and an electronic logic (216) to assign a first value to every photon in the beam of horizontally polarized photons and assign a second value to every photon in the beam of vertically polarized photons to generate a random number (110). |
| first_indexed | 2025-11-14T14:45:36Z |
| format | Patent |
| id | iium-12215 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:45:36Z |
| publishDate | 2010 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-122152013-05-21T08:14:21Z http://irep.iium.edu.my/12215/ Method and apparatus for quantum-mechanically generating a random number , Suryadi Mohd Zain, Norzaliman Wahiddin, Mohamed Ridza QC Physics A method (100) and apparatus (200) for quantum-mechanically generating a random number based on polarization states of spontaneous parametric down- converted photons. The method (100) and apparatus (200) comprises a photon source (202) to generate a beam of photons (102), a first type-l nonlinear crystal (206) and a type-l second nonlinear crystal (207) to down-convert the beam of photons through spontaneous parametric down conversions to generate a pair of unidirectional beam of photons with random polarization states (104), characterized in that the first type-l nonlinear crystal (206) is adjacent to the second type-l nonlinear crystal (207) and optical axis of the first type-l nonlinear crystal (206) is orthogonal to optical axis of the second type-l nonlinear crystal (208), a polarized beam splitter (210) to split the pair of unidirectional beam of photons based on polarization states of the pair of unidirectional beam of photons into a beam of horizontally polarized photons and a beam of vertically polarized photons (106), a first detector (212) and a second detector (214) to detect the presence of the beam of horizontally polarized photons and the beam of vertically polarized photons respectively (108), and an electronic logic (216) to assign a first value to every photon in the beam of horizontally polarized photons and assign a second value to every photon in the beam of vertically polarized photons to generate a random number (110). 2010-03-25 Patent NonPeerReviewed application/pdf en http://irep.iium.edu.my/12215/1/WO2010033013A3.pdf , Suryadi and Mohd Zain, Norzaliman and Wahiddin, Mohamed Ridza (2010) Method and apparatus for quantum-mechanically generating a random number. WO2010033013A3. WO2010033013A3 |
| spellingShingle | QC Physics , Suryadi Mohd Zain, Norzaliman Wahiddin, Mohamed Ridza Method and apparatus for quantum-mechanically generating a random number |
| title | Method and apparatus for quantum-mechanically generating a random number |
| title_full | Method and apparatus for quantum-mechanically generating a random number |
| title_fullStr | Method and apparatus for quantum-mechanically generating a random number |
| title_full_unstemmed | Method and apparatus for quantum-mechanically generating a random number |
| title_short | Method and apparatus for quantum-mechanically generating a random number |
| title_sort | method and apparatus for quantum-mechanically generating a random number |
| topic | QC Physics |
| url | http://irep.iium.edu.my/12215/ http://irep.iium.edu.my/12215/ http://irep.iium.edu.my/12215/1/WO2010033013A3.pdf |