"Vacuum energy and Casimir effect"의 두 판 사이의 차이

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*  On Twisted Virasoro Operators and Number Theory<br>
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2010년 3월 4일 (목) 16:54 판

vacuum energy
  • ground state energy
  • vacuum state energy
  • zero point energy

 

 

QFT and the vacuum amplitude
  • In QFT, there is a way to relate the vacuum energy density with the vacuum amplitutde.
  • QFT provides ways to compute the vacuum amplitude.
  • Sometimes it is related to the zeta values.

 

Vacuum energy density
  • We can measure the Vacuum energy density by cosmological microwave background.
  • a non-zero vacuum energy is expected to contribute to the cosmological constant, which affects the expansion of the universe.
  • Casimir effect
  • central charge

 

 

Vacuum energy and L-values

Let \(\chi \colon(\mathbb{Z}/n\mathbb{Z})^\times \to \mathbb C^{*}\) has the conductor f.

\(L(-1, \chi) = \frac{1}{2f}\sum_{n=1}^{\infty}{\chi(n)}{n}\)

As the shift \(L_0 \to L_0-\frac{c}{24}\) has the effect of cancelling the linear term in the commutation relation, we do \(L_0^{\ \chi} \to L_0^{ \chi}+\frac{1}{2f}L(-1, \chi)\) to get a corresponding result for twisted Virasoro algebra.

 

 

strange identity
  • Kac book

 

 

related items

 

표준적인 도서 및 추천도서

 

 

articles
  • On Twisted Virasoro Operators and Number Theory
  • Huang, An

 

 

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