2019 Fiscal Year Annual Research Report
Matter-Light Interferometry and Quantum Phase Transitions
| Project/Area Number |
19F19792
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| Research Institution | Okinawa Institute of Science and Technology Graduate University |
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Principal Investigator |
BUSCH Thomas 沖縄科学技術大学院大学, 量子システム研究ユニット, 教授 (30715272)
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| Co-Investigator(Kenkyū-buntansha) |
GIETKA KAROL 沖縄科学技術大学院大学, 量子システム研究ユニット, 外国人特別研究員
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| Project Period (FY) |
2019-11-08 – 2022-03-31
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| Keywords | Quantum metrology / Quantum entanglement / Magnetometry / Spin-squeezing |
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| Outline of Annual Research Achievements |
A theoretical model describing a two-mode Bose-Einstein condensate interacting with two modes of light in an optical cavity has been derived and well-understood. The model will serve as a proposal for a self-ordered spinor magnetometer which would allow for ultra-precise measurements of static and time-dependent magnetic fields. The proposal is based on the state-of-the-art experiments and with current experimental parameters it can compete with state-of-the-art magnetometers with a possibility of surpassing their performance.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
Currently the work describing self-order spinor magnetometer is being finalized, and soon it will be submitted to a scientific journal. The work about spins in a spin chain is currently in the process of finalizing calculations.
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| Strategy for Future Research Activity |
The future work will be mainly focused on writing a manuscript summarizing the possibility of using spin-chains to create spin-squeezed states of spins. Another aim is a fully quantum description of (spinor) self-organization, i.e., going beyond the single-particle approximation.
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