| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2014: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2012: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Outline of Final Research Achievements |
In 2013 vertical distribution of the bound states of ultracold neutrons was measured with an accuracy < 1μm, and it agrees with the prediction of quantum mechanics using the Wigner function. This is the first clear result of this type and it was published in Phys. Rev. Let. Based on these studies, new short-range force was searched for by measuring the angular distributions of cold neutron scattering with Xe nuclei. We imposed the best limit for the theory of new short range forces in the range of 0.04nm to 4nm. This result was also published in Phys. Rev. Let. Furthermore, we proposed a new experiment to test the Equivalent Principle in the quantum mechanical environment within an accuracy of 0.1%. In the experiment time development of the quantum states is measured after setting the initial distribution by the neutron chopper. Time evolution of quantum states with different velocities is measured by the neutron pixel detector with high precision.
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