Dynamical Casimir effect using electron beam driven high power ultrasonic source

• Project/Area Number: 23654095
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: YOSHIDA Mitsuhiro 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 准教授 (60391710)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: カシミール効果 / 量子電磁気 / 加速器 / ミリ波

Research Abstract

The dynamical Casimir effect is the only way to observe the electromagnetic wave from the vacuum by oscillating the boundary wall of the RF cavity.
However the existing technology such as piezo electric device to obtain the ultrasonic wave is much less than the required power In this research, the electron driven high power ultrasonic source was developed to oscillate the wall of the superconducting cavity. The RF output from the vacuum was measured using ultra low noise amplifier.