Casimir effect with Gaussian regulator

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SUMMARY

The discussion focuses on calculating the Casimir force in one-dimensional space using a Gaussian regulator. The key equation involves evaluating the sum $$\sum_n n e^{-\epsilon^2n^2}$$, which the user attempts to convert into a Gaussian integral. The user references Voja's problem book for regularization techniques but does not find the necessary solution. The suggestion to utilize Abel's summation formula is provided as a potential method to resolve the issue.

PREREQUISITES
  • Understanding of the Casimir effect and its implications in quantum field theory.
  • Familiarity with Gaussian integrals and their applications in physics.
  • Knowledge of summation techniques, particularly Abel's summation formula.
  • Basic proficiency in mathematical analysis involving series and limits.
NEXT STEPS
  • Research Gaussian integrals and their role in quantum mechanics.
  • Study Abel's summation formula and its applications in evaluating series.
  • Explore Voja's problem book for additional regularization techniques.
  • Investigate the implications of the Casimir effect in higher dimensions.
USEFUL FOR

Physicists, particularly those specializing in quantum field theory, students tackling advanced physics problems, and researchers interested in the mathematical techniques for evaluating quantum forces.

Silviu
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Homework Statement


Calculate the Casimir force in 1D using a Gaussian regulator.

Homework Equations

The Attempt at a Solution


I reached a point where I need to evaluate a sum of the form $$\sum_n n e^{-\epsilon^2n^2}$$ Can someone help me? I didn't really find anything useful online. I thought of turning this into a gaussian integral, and I would get something of the form ##\frac{1}{\epsilon}\frac{\sqrt{\pi}}{2}##, but I don't get the answer I need using this.
 
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Check it in Voja's problem book under regularization.
 
I didn't find it there...
 

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