Wormholes and Time Travel ? Not Likely
نویسنده
چکیده
Wormholes have been advanced as both a method for circumventing the limitations of the speed of light as well as a means for building a time machine (to travel to the past). Thus it is argued that General Relativity may allow both of these possibilities. In this note I argue that traversable wormholes connecting otherwise causally disconnected regions, violate two of the most fundamental principles physics, namely local energy conservation and the energy-time uncertainty principle.
منابع مشابه
- qc / 0 50 30 97 v 3 8 A pr 2 00 5 SU - ITP hep - th / Wormholes and Time Travel ? Not Likely
Wormholes have been advanced as both a method for circumventing the limitations of the speed of light as well as a means for building a time machine (to travel to the past). Thus it is argued that General Relativity may allow both of these possibilities. In this note I argue that traversable wormholes connecting otherwise causally disconnected regions, violate two of the most fundamental princi...
متن کاملDynamical Wormholes and Energy Conditions
A class of exact solutions of the Einstein field equations representing non-static wormholes that obey the weak and dominant energy conditions is presented. Hence, in principle, these wormholes can be built with less exotic matter than the static ones. PACS numbers: 04.20.Jb, 04.20.Cv, 04.60.+n, 03.70.+k e-mail address: [email protected] e-mail address: [email protected] 1 The idea of wormholes ...
متن کاملar X iv : g r - qc / 0 50 30 97 v 2 2 7 M ar 2 00 5 SU
Wormholes have been advanced as both a method for circumventing the limitations of the speed of light as well as a means for building a time machine (to travel to the past). Thus it is argued that General Relativity may allow both of these possibilities. In this note I argue that traversable wormholes connecting otherwise causally disconnected regions, violate two of the most fundamental princi...
متن کامل20 40 38 v 1 9 A pr 2 00 2 Weak energy condition violation and superluminal travel
Recent solutions to the Einstein Field Equations involving negative energy densities, i.e., matter violating the weak-energy-condition, have been obtained, namely traversable wormholes, the Alcubierre warp drive and the Krasnikov tube. These solutions are related to superluminal travel, although locally the speed of light is not surpassed. It is difficult to define faster-than-light travel in g...
متن کاملar X iv : g r - qc / 0 20 40 38 v 2 9 A pr 2 00 2 Weak energy condition violation and superluminal travel
Recent solutions to the Einstein Field Equations involving negative energy densities, i.e., matter violating the weak-energy-condition, have been obtained, namely traversable wormholes, the Alcubierre warp drive and the Krasnikov tube. These solutions are related to superluminal travel, although locally the speed of light is not surpassed. It is difficult to define faster-than-light travel in g...
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