| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Outline of Final Research Achievements |
In this research project, we performed mainly three experiments with perfect-crystal neutron interferometers. They are (i) an experiment to confirm the quantum Cheshire-cat phenomenon with a delayed-choice option, (ii) an experiment to separate three degrees of freedom of the quantum Cheshire-cat using a three-path neutron interferometer, and (iii) an experiment to carry out simultaneous path weak-measurements in a Mach-Zehnder-type interferometer by the use of two spin rotators operated with different frequencies. Furthermore, an experiment was perfomed using a neutron spin polarimeter to show the existence of hidden errors of a quantum measurement and realize further quantification. All these experiments were done as a part of the cooperative works with the Vienna University of Technology. In parallel, we developed a setup for conducting atom-interferometer experiments at the Hokkaido University.
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