Toy Model of a Reissner-Nordstrom Wormhole

This is a model for a traversable wormhole connecting two Reissner-Nordstrom universes. Two parameters are given, the radius of the wormhole and the thickness. Unfortunately, like the other traversable solution, exotic material with negative energy is necessary to maintain this wormhole.


  • [Snapshot]
  • [Snapshot]
  • [Snapshot]


The metric is spherically symmetric, static, and transversable, in the sense introduced by Morris and Thorne.
(, ) - polar coordinates
- radius of the wormhole
- new coordinate with ; positive values correspond to points in the top space, negative to points in the bottom space
- thickness of the wormhole
The embedded or "lift"-function is:
For further details see:
E. G. Harris, "Wormhole Connecting Two Reissner-Nordstrom Universes," American Journal of Physics, 61(12), 1993 pp. 1140–1144.
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.

Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2018 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+