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Park Gunsu An Daehyun Kim Haram

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Presentation on theme: "Park Gunsu An Daehyun Kim Haram"— Presentation transcript:

1 20170234 Park Gunsu 20170368 An Daehyun 20180182 Kim Haram
Unruh Effect Park Gunsu An Daehyun Kim Haram

2 Intro INERTIAL REFERENCE FRAME!
𝑑 𝜏 2 =𝑑 𝑡 2 − 𝐻 −2 cosh 2 𝐻𝑡 (𝑑 𝜉 2 + sin 2 𝜉 𝑑 Ω 2 ) 𝑑 𝜏 2 =𝑑 𝑡 2 − exp 2𝐻𝑡 (𝑑 𝑟 2 + 𝑟 2 𝑑 Ω 2 ) 𝑑 𝜏 2 =𝑑 𝑡 2 − 𝐻 −2 sinh 2 𝐻𝑡 (𝑑 𝜉 2 + sinh 2 𝜉 𝑑 Ω 2 ) 𝑑 𝜏 2 = 1− 𝐻 2 𝑡 2 𝑑 𝑡 2 − 𝑑 𝑟 2 1− 𝐻 2 𝑡 2 − 𝑟 2 𝑑 Ω 2 INERTIAL REFERENCE FRAME! Reference : Lecture note of PH471-Relativity-De Sitter space

3 Ordinary Minkowski Space
𝑑 𝜏 2 =𝑑 𝑡 2 −(𝑑 𝑥 2 +𝑑 𝑦 2 +𝑑 𝑧 2 ) Reference :

4 Constantly Accelerating Object
Reference :

5 Rindler Space 𝑥=𝜌 cosh 𝜎 𝑡=𝜌 sinℎ⁡(𝜎) 𝑑 𝜏 2 = 𝜌 2 𝑑 𝜎 2 −d 𝜌 2
World line of constantly accelerating object : 𝜌 = 1/𝑎 𝜎 = 𝑎𝜏 where 𝜏 is observer's proper time   Reference:

6 Rindler Horizon Reference :

7 Rindler Horizon Inertia from an asymmetric Casim ir effect
Reference : Inertia from an Asymmetric Casimir Effect(M.E. McCulloch,2013)

8 Hawking Radiation Press Release: Violent Acceleration and the Event Horizon Reference : Press Release: Violent Acceleration and the Event Horizon(Dr. Pisin Chen ,2000)

9 Warm Vacuum Expectation value of number operator of vacuum
<𝑁> = 2𝜋 𝑒 2𝜋𝜔/𝑎 −1 𝛿(0) Similar form with Planck distribution 1 𝑒 ℏ𝜔 𝑘 𝐵 𝑇 −1 From this analogy, Unruh temperature becomes 𝑇= ℏ𝑎 2𝜋𝑐 𝑘 𝐵

10 Decay of Accelerating Particle
Reference : Decay of accelerated particles(Rainer Müller,1997)

11 Experiment to Test Unruh Effect
Reference :

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