Matter-Light Interferometry and Quantum Phase Transitions
| Project/Area Number |
19F19792
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Review Section |
Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
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| Research Institution | Okinawa Institute of Science and Technology Graduate University |
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| Host Researcher |
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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| Foreign Research Fellow |
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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| Project Status |
Granted (Fiscal Year 2020)
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| Budget Amount *help |
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2021: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2020: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2019: ¥400,000 (Direct Cost: ¥400,000)
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| Keywords | Quantum metrology / Quantum entanglement / Magnetometry / Spin-squeezing |
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| Outline of Research at the Start |
The interaction between atoms and light inside an optical cavity can lead to the creation of exotic quantum states with interesting topological properties. In the course of the proposed research, these properties will be harnessed to perform some specific tasks. Firstly, we will study the possibility of exploiting the generation of spin current in order to measure gravitational acceleration. And, secondly, we will study the possibility of non-destructive measurements of topological phase transitions and topological invariants.
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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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Report
(1 results)
Research Products
(1 results)
