Exploring quantum limited position measurement of single photons using tunable spatial entanglement

• Project/Area Number: 25K08500
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 30020:Optical engineering and photon science-related
• Research Institution: Tohoku University
• Principal Investigator: BAEK SOYOUNG 東北大学, 理学研究科, 助教 (70826172)
• Project Period (FY): 2025-04-01 – 2028-03-31
• Project Status: Granted (Fiscal Year 2025)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2027: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2026: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2025: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: Quantum measurement

Outline of Research at the Start

We explore quantum-limited position measurements of single photons using tunable spatial entanglment by investigating error-disturbance uncertainty relation of continuous-variable observables, position and momentum.