From einstein to hawking aip series in computational and applied mathematical physics 1996 by visser, matt isbn. Louis, the good news about lorentzian wormholes is that after about ten years of hard work we cannot prove that they dont exist. Morristhorne wormholes with a cosmological constant. In practice, the values of fundamental constants other than a cannot be predicted without a detailed knowledge of planckscale physics.
In threedimensional spacetime, this tension is strong enough to rule out wormholes with the above properties. Professor of mathematics, victoria university of wellington. Expanding lorentzian wormholes in r2 gravity progress of. Several different scale factors are used and the corresponding consequences derived. Euclidean wormholes are probably unphysical since the strong equivalence principle, which states that spacetime is everywhere a lorentzian manifold, seems to hold visser, p.
Numerous and frequentlyupdated resource results are available from this search. Rotating black holes in general relativity isbn 9780521885126. In particular, it is possible for a traveller to traverse such a. Notes on hyperspace, star gates, time travel to the past.
If a minkowski spacetime contains a compact region. The last part of the book is more of a send off to the reader and an encouragement for further reading on the issues in the book a list of research problems in given for the ambitious and curious reader. Use the button available on this page to download or read online book. Formalizing this idea leads to definitions such as the following, taken from matt visser s lorentzian wormholes fuller published a paper 12 showing that this type of wormhole is unstable if it connects two parts of the same universe, and that it will pinch off woemholes quickly for worjholes or any particle moving slower than light that. Drawing on pivotal work by einstein, wheeler, morris, thorne, hawking, and others, matt visser charts the development and current state of lorentzian wormhole physics. These examples are notable both because the analysis is not limited to spherically symmetric cases, and because it is possible to in some sense minimize the use of exotic matter. Formalizing this idea leads to definitions such as the following, taken from matt visser s lorentzian wormholes the drainhole is a solution manifold of einsteins field equations for a vacuum spacetime, modified by inclusion of a scalar field minimally coupled to the ricci tensor with antiorthodox polarity negative instead of positive.
This technical monograph looks at the science behind. Wormholes and nontrivial topology matt visser quantum gravity and random geometry kolimpari, hellas, sept 2002. Here you can download any book in pdf or epub format for free. In higher dimensions, including the most physically interesting case of fourdimensional spacetime, wormholes, if any, must have fairly contrived shapes.
Pedros early work in general relativity up to traversable wormholes. Samuel george 2 einsteinrosen bridge in 1916 einstein first introduced his general theory of relativity, a theory which to this. Pdf r0 spacetimes and selfdual lorentzian wormholes. From einstein to hawking aip series in computational and applied mathematical physics on free shipping on. Fareeda marked it as toread apr 19, michael agermose added it jul 30, return to book page. Visser shows that by pushing established physical theories to their limits, it is possible to deduce the true physics of such exotica as wormholes. Visser shows that by pushing established physical theories to their limits, it is possible to deduce the physical properties of such exotica as wormholes and time travel.
Finding ebooks booklid booklid download ebooks for free. Visser, matt buy this book softcover 72,79 price for spain gross buy softcover isbn 9781563966538. These wormholes are obtained by assuming constant ricci scalar and traceless equation of state. Lorentzian wormholes could be threaded both by quantum and classical matter fields that violate certain. Lorentzian wormholes from einstein to hawkinglorentzian. But a publication five years ago 1 showed that a large class of wormholes require exotic matter to keep them open. Wormholes also drive newtons constant g to the lowest possible value. Wormholes, spacewarps, timewarps and time machines have permeated popular culture. Definition of a lorentzian wormhole physics forums. Drawing on pivotal work by einstein, wheeler, morris, thorne, hawking, and others, matt visser charts the development and current state of lorentzian wormhole. Lorentzian wormholes from einstein to hawking matt. According to matt visser of washington university in st.
Lorentzian wormholes from einstein to hawkinglorentzian wormholes 1996epaperback. Wells to star trek, audiences have been captivated by the notions of time travel, time warps, space warps, and wornholes. Everyday low prices and free delivery on eligible orders. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. We present traversable, lorentzian wormholes in the framework of r 2 gravity. Building on the work of morris, thorne, and yurtsever, some particularly simple examples of traversable wormholes are exhibited. Drawing on pivotal work by einstein, wheeler, thorne, hawking, and others, matt visser charts the development and current state of lorentzian wormhole physics. Lorentzian wormholes from einstein to hawkinglorentzian wormholes 1996epaperback mattvisser on. Oldstyle wormholes the schwarzschild wormhole, aka the einsteinrosen bridge, and. Later, other types of traversable wormholes were discovered as allowable solutions to the equations of general relativity, including a variety analyzed in a paper by visser visserin which a path through the wormhole can be made where the traversing path does not pass through a region of exotic matter. School of mathematics, statistics, and computer science victoria university of wellington, new zealand matt.
The possibility of traversable wormholes in general relativity was first demonstrated in a paper by homer ellis 30 and independently in a paper by k. Wormholes and nontrivial topology matt visser ecs victoria. Instead of mucking around with global anal ysis on lorentzian manifolds, you can get the essence of the result by looking. For this reason, the type of traversable wormhole they proposed, held open by a spherical shell of exotic matterwas from to referred to in. From einstein to hawking springer 1996 just opened this book. But science fiction is not the only realm where these concepts. The metric is asymptotically rw, and locally that of a lorentzian wormhole. Lorentzian wormholes visser pdf lorentzian wormholes. Evolving lorentzian wormholes with the required matter satisfying the energy conditions are discussed. Wells to star trek, audiences have been captivated by the notions of time travel.
Later, in 1989, matt visser published an article showing how more general traversable wormholes could be constructed. Another way to imagine wormholes is to take a sheet of paper and draw two somewhat distant points on one side of the paper. Lorentzian wormholes from einstein to hawking matt visser. He is the author of the reference book on the current state of wormhole theory, lorentzian wormholes from einstein to hawking 1996 and coeditor of artificial black holes 2002. A wormhole could be constructed, according to visser, by confining exotic matter to narrow regions to form the edges of threedimensional volume, for. Formalizing this idea leads to definitions such as the following, taken from matt vissers lorentzian wormholes. The requirement that g is at its minimum determines, in principle, all other constants of nature.
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