| Budget Amount *help |
¥30,940,000 (Direct Cost: ¥23,800,000、Indirect Cost: ¥7,140,000)
Fiscal Year 2011: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2010: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2009: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Research Abstract |
Quantum entangled states become essentially important in both regions of condensed matter physics and quantum information technology. Toward a complete understanding of such states, we study the development of a microwave microscope to probe the quantum critical behavior in the neighborhood of quantum critical point, and the design of a superconducting cavity resonator to investigate the quantum entangled states generated by using a quantum electrodynamics theory. We found that a spatial resolution of the microwave microscope is strongly enhanced by utilizing a microwave near-field, which is realized by the insertion of a metallic needle into a cavity resonator. We also found that such an insertion of the metallic needle is useful for a precise control of the coupling constant between the Josephson quantum bits and the microwave photons at low temperatures, which is required to create the quantum entangled states.
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