On the nature of exotic matter in Morris-Thorne wormholes

Abstract

It is well known that phantom energy, which is characterized by the equation of state $p=\omega \rho$, $\omega <-1$, can support Morris-Thorne wormholes since it leads to a violation of the null energy condition. The purpose of this note is to show that the converse is also true in the following sense: for a typical shape function, the equation of state of exotic matter in the vicinity of the throat is given by $p_r=\omega \rho$, $\omega <-1$, where $p_r$ is the radial pressure. Some implications thereof are also considered.

6 pages, no figures

References in corpus (2)

• Hawking Radiation as Quantum Tunneling from Noncommutative Schwarzschild Black Hole
• Accounting for the large radial tension in Morris-Thorne wormholes