Creating a 2-D Electrostatic Field

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Discussion Overview

The discussion revolves around the possibility of creating a 2-D electrostatic field, inspired by concepts presented in the Feynman lectures. Participants explore the implications of using complex variables in modeling and the feasibility of experimental realization in a 2-D context, particularly in relation to materials like graphene.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant references the Feynman lectures and questions whether an experiment can be designed to replicate a 2-D electrostatic field, despite the use of complex variables.
  • Another participant asserts that complex variables are merely a mathematical tool, emphasizing that the actual fields are real.
  • A different participant suggests that while the mathematical formulation is for 2-D models, it raises the question of whether a true 2-D electric field can be created, similar to how graphene is treated as a 2-D material.
  • One participant proposes solving the Poisson equation in 2-D with appropriate boundary conditions as a potential approach to creating a 2-D electric field.
  • Another participant argues that both electric and magnetic fields can only be approximately 2-D due to the inherent three-dimensional nature of the physical world.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of creating a true 2-D electrostatic field, with some emphasizing the limitations imposed by the three-dimensional world. The discussion remains unresolved, with multiple competing perspectives on the topic.

Contextual Notes

Participants acknowledge the mathematical nature of complex variables and the challenges of achieving a purely 2-D electric field in a three-dimensional context. There are references to boundary conditions and the Poisson equation, but no consensus on the practical realization of the concept.

doggydan42
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I've been reading the Feynman lectures in physics. In volume 2 chapter 7: http://www.feynmanlectures.caltech.edu/II_07.html he shows how to mathematically model a 2D electrostatic field.

Is it possible to create an experiment that behaves the same way even with the complex variables?

Thank you in advance
 
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The complex variables are just a mathematical trick. The actual fields are real.
 
Vanadium 50 said:
The complex variables are just a mathematical trick. The actual fields are real.

I understand that it is a mathematical formulation for 2D models, but could someone create a 2D electric field instead of a 3D one, like how graphene can be considered a 2D material.
 
doggydan42 said:
I understand that it is a mathematical formulation for 2D models, but could someone create a 2D electric field instead of a 3D one, like how graphene can be considered a 2D material.

Couldn't you just solve the Poisson equation in 2D with the appropriate boundary condition?

Zz.
 
Just as graphene is only approximately 2D because we live in a 3D world, electric and magntic fields can only be approximately 2D because we live in a 3D world.
 
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