| Paper Abstract and Keywords |
| Presentation |
2015-05-25 13:20
[Poster Presentation]
Generation of Phase-Squeezed State using Conditional Displacement Operation and Post-Selection
Fumiaki Matsuoka, Akihisa Tomita (Hokkaido Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
The phase estimation of light is widely used for many applications such as metrology, communications and quantum information processing. Generally, the precision of the phase estimation can improve by strengthening of the power of light. However, the strengthening of the power may induce the high-order nonlinear effect etc., thus the precision of the phase estimation is decreased. Therefore, the higher precision of the phase estimation is required for optimal power according to the measuring object. It is well known that phase squeezed light can improve the precision of the phase estimation. However, since such squeezing operation is observed only by weak light experimentally, the light power cannot optimized. Consequently, the precision is not improved. We propose the method of the generation of the approximately phase-squeezed light using the conditional displacement operation and the post-selection. We explain that the superposition of two coherent states which have different amplitudes can be regarded as approximately phase-squeezed states in our proposal. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Phase-Squeezed State / Post-Selection / Conditional Displacement Operation / / / / / |
| Reference Info. |
IEICE Tech. Rep. |
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| Conference Information |
| Committee |
QIT |
| Conference Date |
2015-05-25 - 2015-05-26 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Osaka University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Quantum Information |
| Paper Information |
| Registration To |
QIT |
| Conference Code |
2015-05-QIT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Generation of Phase-Squeezed State using Conditional Displacement Operation and Post-Selection |
| Sub Title (in English) |
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Phase-Squeezed State |
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Post-Selection |
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Conditional Displacement Operation |
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| 1st Author's Name |
Fumiaki Matsuoka |
| 1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
| 2nd Author's Name |
Akihisa Tomita |
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Hokkaido University (Hokkaido Univ.) |
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| Date Time |
2015-05-25 13:20:00 |
| Presentation Time |
60 minutes |
| Registration for |
QIT |
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