| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2018: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Outline of Final Research Achievements |
We extend quantum memories composed of concatenated optical cavities, which are our original technique. We create and store a single photon straddling between two memory systems as an entangled state, and release it with controlled timings. We estimate the released quantum state and verify that they are controlled while keeping unique features of quantum mechanics. In particular, negative regions of the Wigner functions are important, distinguishing quantum mechanics from classical mechanics, and the important thing is that the quantum states are stored while keeping this negative regions.
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