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Wormholes

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Wormhole Online Preprints & Papers

gr-qc search results for 'wormhole' since 1992

  1. Wormhole Dominance Proposal and Wave Function Discord , S.Biswas, B.Modak, A.Shaw (1999)
  2. Localization Instability in the Rotating D-branes , Rong-Gen Cai, Kwang-Sup Soh (1999)
  3. Critical behavior in black hole thermodynamics , Rong-Gen Cai (1999)
  4. General Dynamic Wormholes and Violation of the Null Energy Condition , David Hochberg, Matt Visser (1999)
  5. Induced wormholes due to quantum effects of spherically reduced matter in large N approximation , S. Nojiri, O. Obregon, S.D. Odintsov, K.E. Osetrin (1998)
  6. Critical Behavior in the Rotating D-branes , Rong-Gen Cai, Kwang-Sup Soh (1998)
  7. Large N wormhole approach to spacetime foam , Remo Garattini (1998)
  8. Branes for Higgs phases and exact conformal field theories , Konstadinos Sfetsos (1998)
  9. Distributional torsion of charged domain walls with spin , L.C.Garcia de Andrade (1998)
  10. Tolman wormholes violate the strong energy condition , David Hochberg , Carmen Molina-Paris Matt Visser (1998)
  11. Minimal conditions for the creation of a Friedman-Robertson-Walker universe from a "bounce" , Carmen Molina-Paris, Matt Visser (1998)
  12. More on Membranes in Matrix Theory , Nakwoo Kim (1998)
  13. Self--gravitating cosmic rings , Gérard Clément (1998)
  14. Notes on D-instanton correction to AdS5 x S5 geometry , Chanyong Park, Sang-Jin Sin (1998)
  15. Wormholes and Flux Tubes in 5D Kaluza-Klein Theory , V.Dzhunushaliev, D.Singleton (1998)
  16. Multidimensional Geometrical Model of the Renormalized Electrical Charge with Splitting off the Extra Coordinates , V.Dzhunushaliev (1998)
  17. Numerical evolution of matter in dynamical axisymmetric black hole spacetimes. I. Methods and tests , S. Brandt, J.A. Font, J.M. Ibanez, J. Masso, E. Seidel (1998)
  18. Brans-Dicke wormholes endowed with torsion , Luis A. Anchordoqui (1998)
  19. Wormholes in String Theory , Dan N. Vollick (1998)
  20. Maintaining a Wormhole with a Scalar Field , Dan N. Vollick (1998)
  21. Stable central structures in topologically nontrivial Anti-de Sitter spacetimes , W. L. Smith, R. B. Mann (1998)
  22. A New Approach to String Cosmology , Gary T. Horowitz, Donald Marolf (1998)
  23. A Spinning Anti-de Sitter Wormhole , Stefan Aminneborg, Ingemar Bengtsson, Soren Holst (1998)
  24. Dynamic wormholes , Sean A. Hayward (1998)
  25. Nonsingular instantons for the creation of open universes , Pedro F. Gonzalez-Diaz (1998)
  26. Anti-de Sitter wormhole kink , Pedro F. Gonzalez-Diaz (1998)
  27. Soap Bubbles in Outer Space: Interaction of a Domain Wall with a Black Hole , M. Christensen, V.P. Frolov, A.L. Larsen (1998)
  28. Rotating traversable wormholes , Edward Teo (1998)
  29. Patching up the No-Boundary Proposal with virtual Euclidean wormholes , Raphael Bousso, Andrew Chamblin (1998)
  30. Wormhole effective interactions in anti-de Sitter spacetime , C. Barcelo, L.J. Garay (1998)
  31. Wormholes in spacetimes with cosmological horizons , Carlos Barcelo (1998)
  32. Rotating vacuum wormhole , V.M.Khatsymovsky (1998)
  33. Might some gamma ray bursts be an observable signature of natural wormholes? , Diego F. Torres, Gustavo E. Romero, Luis A. Anchordoqui (1998)
  34. Acoustic phase lenses in superfluid helium as models of composite spacetimes in general relativity: Classical and quantum features , Konstantin G. Zloshchastiev (1998)
  35. The null energy condition in dynamic wormholes , David Hochberg, Matt Visser (1998)
  36. Dynamic wormholes, anti-trapped surfaces, and energy conditions , David Hochberg, Matt Visser (1998)
  37. Causality properties of topologically nontrivial space-time models , M. Yu. Konstantinov (1998)
  38. The Chern-Simons state for the non-diagonal Bianchi IX model , Robert Paternoga, Robert Graham (1998)
  39. Scattering in the pair of Hilbert spaces , Egor Bugrij, Alexei Mishchenko, Yurii Sitenko (1998)
  40. Mixed Boundary Problem for the Traversable Wormhole Models , M. Yu. Konstantinov (1997)
  41. Domain with Noncompactified Extra Dimensions in Multidimensional Universe with Compactified Extra Dimensions , V.D. Dzhunushaliev (1997)
  42. On A Possible Ground State for Quantum Gravity , Giuliano Preparata, She-Sheng Xue (1997)
  43. Building blocks for topology change in 3D , Radu Ionicioiu (DAMTP, University of Cambridge, UK) (1997)
  44. A Wormhole at the core of an infinite cosmic string , Rodrigo M Aros, Nelson Zamorano (1997)
  45. Multidimensional Gravity on the Principal Bundles , V.D. Dzhunushaliev (1997)
  46. The Matter Plus Black Hole Problem in Axisymmetry , S. R. Brandt, J. A. Font (1997)
  47. Block-Orthogonal Brane Systems, Black Holes and Wormholes , K.A. Bronnikov (1997)
  48. Causality in Topologically Nontrivial Space-Times , M.Yu. Konstantinov (1997)
  49. The Reissner-Nordstrom Problem for Intersecting Electric and Magnetic p-Branes , K. A. Bronnikov, V. D. Ivashchuk, V. N. Melnikov (1997)
  50. Evolving wormhole geometries , Luis A. Anchordoqui, Diego F. Torres, Marta L. Trobo, Santiago E. Perez Bergliaffa (1997)
  51. Geometric wormhole throats , Matt Visser, David Hochberg (1997)
  52. Two Dimensional Mirror Symmetry From M-theory , John Brodie (1997)
  53. Classical and Quantum Anisotropic Wormholes in Pure General Relativity , Hongsu Kim (1997)
  54. Can neutrino vacuum support the wormhole? , V.Khatsymovsky (1997)
  55. Black Holes and Wormholes in 2+1 Dimensions , Stefan Aminneborg, Ingemar Bengtsson, Dieter Brill, Soren Holst, Peter Peldan (1997)
  56. Vacuum static Brans-Dicke wormhole , Luis A. Anchordoqui, A. G. Grunfeld, Diego F. Torres (1997)
  57. Wave Function of a Supersymmetric FRW Model with Vector Fields , P.V. Moniz (1997)
  58. Classical and Quantum Wormholes in Einstein-Yang-Mills Theory , Hongsu Kim (1997)
  59. Axionic Wormholes : More on their Classical and Quantum Aspects , Hongsu Kim (1997)
  60. Geometric structure of the generic static traversable wormhole throat , David Hochberg, Matt Visser (1997)
  61. Extra Dimensions, Nonminimal Couplings, Horizons and Wormholes , Kirill A. Bronnikov (1997)
  62. Traversable wormholes: the Roman ring , Matt Visser (1997)
  63. Negative modes in the four-dimensional stringy wormholes , Jin Young Kim, H.W. Lee, Y.S. Myung (1997)
  64. Self-consistent Wormhole Solutions of Semiclassical Gravity , David Hochberg, Arkadiy Popov, Sergey V. Sushkov (1997)
  65. Flat wormholes from straight cosmic strings , Gerard Clement (1997)
  66. Energy Computation in Wormhole Background with the Wheeler-DeWitt Operators , Remo Garattini (1997)
  67. Classical instanton and wormhole solutions of Type IIB string theory , Jin Young Kim, H.W. Lee, Y.S. Myung (1996)
  68. Time machine as four-dimensional wormhole , Alexandr K. Guts (1996)
  69. Wormholes in spacetime with torsion , Luis A. Anchordoqui (1996)
  70. Multidimensional Geometrical Model of the Electrical and SU(2) Colour Charge with Splitting off the Supplementary Coordinates , V.D. Dzhunushaliev (1996)
  71. Towards possibility of self-maintained vacuum traversible wormhole , V. Khatsymovsky (1996)
  72. Multidimensional Quantum Cosmology: Quantum Wormholes, Third Quantization, Inflation from "Nothing", etc , A. Zhuk (1996)
  73. Brans-Dicke wormholes in nonvacuum spacetime , Luis A. Anchordoqui, Santiago Perez Bergliaffa, Diego F. Torres (1996)
  74. Diagonal quantum Bianchi type IX models in N=1 supergravity , A.D.Y. Cheng, P.D. D'Eath (1996)
  75. Wormholes and Black Hole Pair Creation , Remo Garattini (1996)
  76. Instability of Space-Time due to Euclidean Wormholes , V.A.Rubakov, O.Yu.Shvedov (1996)
  77. Stress-energy of a quantized scalar field in static wormhole spacetimes , Brett E. Taylor, William A. Hiscock, Paul R. Anderson (1996)
  78. Time machines and the Principle of Self-Consistency as a consequence of the Principle of Stationary Action (II): the Cauchy problem for a self-interacting relativistic particle , A. Carlini, I.D. Novikov (1996)
  79. Flat wormholes from straight cosmic strings , Gérard Clément (1996)
  80. Multidimensional SU(2) wormhole between two null surfaces , V.D. Dzhunushaliev (1996)
  81. Bubbles and wormholes: analytic models , A.Wang, P.S.Letelier, P S., (1995)
  82. Traversable Wormholes in Geometries of Charged Shells , F. Schein, P.C. Aichelburg (1996)
  83. Area spectrum of the Schwarzschild black hole , Jorma Louko, Jarmo Makela (1996)
  84. Quantum cosmology in the energy representation , Franz Embacher (1996)
  85. Dyson Pairs and Zero-Mass Black Holes , G. W. Gibbons, D. A. Rasheed (1996)
  86. Quantization of a Friedmann-Robertson-Walker Model with Gauge Fields in N=1 Supergravity , P.V. Moniz (1996)
  87. A Negative Mode About Euclidean Wormhole , V.A. Rubakov, O.Yu. Shvedov (1996)
  88. Vacuum Energy Estimates in Quantum Gravity and the Wheeler-DeWitt Equation , Remo Garattini (1996)
  89. Exponentially Large Probabilities in Quantum Gravity , O.Yu.Shvedov (1996)
  90. Ring Wormholes in D-Dimensional Einstein and Dilaton Gravity , Kirill A. Bronnikov, Julio C. Fabris (1996)
  91. 5D Kaluza - Klein's Wormhole Between Two Event Horizons , V. D. Dzhunushaliev (1996)
  92. String Supported Wormhole Spacetimes and Causality Violations , F. Schein, P.C. Aichelburg, W. Israel (1996)
  93. On the Exponentially Large Probability of Transition through the Lavrelashvili-Rubakov-Tinyakov Wormhole , O.Yu.Shvedov (1996)
  94. Dynamic Monopoles and Spacetime Structure , Nobuyuki Sakai (1995)
  95. Dynamics of Gravitating Magnetic Monopoles , Nobuyuki Sakai (1995)
  96. Instantons and seven-branes in type IIB superstring theory , Gary W. Gibbons, Michael B. Green, Malcolm J. Perry (1995)
  97. Quantum Field Theory Constrains Traversable Wormhole Geometries , L.H. Ford, Thomas A. Roman (1995)
  98. Asymptotically anti-de Sitter wormholes , Carlos Barcelo, Luis J. Garay, Pedro F. Gonzalez-Diaz, Guillermo A. Mena Marugan (1995)
  99. Duality and Restoration of Manifest Supersymmetry , Konstadinos Sfetsos (1995)
  100. Is there a problem with quantum wormhole states in N=1 Supergravity? , P.V. Moniz (1995)
  101. Quantum Mechanical Lorentzian Wormholes in Cosmological Backgrounds , David Hochberg (1995)
  102. Evolving Lorentzian Wormholes , Sayan Kar, Deshdeep Sahdev (1995)
  103. Time machines: the Principle of Self-Consistency as a consequence of the Principle of Minimal Action , A. Carlini, V.P. Frolov, M.B. Mensky, I.D. Novikov, H.H. Soleng (1995)
  104. Thin-shell wormholes: Linearization stability , Eric Poisson, Matt Visser (1995)
  105. The Case of the Missing Wormhole State , P.V. Moniz (1995)
  106. Quantum Formation of Black Hole and Wormhole in Gravitational Collapse of a Dust Shell , K.Nakamura, Y.Oshiro, A.Tomimatsu (1995)
  107. Vacuum Static, Axially Symmetric Fields in d-Dimensional Gravity , K.A. Bronnikov, V.N. Melnikov (1995)
  108. Back to Basics?... or How can supersymmetry be used in simple quantum cosmological model , P.V. Moniz (1995)
  109. Dimensionality, topology, energy, the cosmological constant, and signature change , Franz Embacher (1995)
  110. Multidimensional Classical and Quantum Cosmology with Perfect Fluid , V. D. Ivashchuk, V. N. Melnikov (1995)
  111. Collective Coordinates in String Theory , Willy Fischler, Sonia Paban, Moshe Rozali (1995)
  112. Strings in a Wormhole Background , Sayan Kar (1995)
  113. Gravity and Global Symmetries , Renata Kallosh, Andrei Linde, Dmitri Linde, Leonard Susskind (1995)
  114. Wormhole cosmic strings , Gérard Clément (1995)
  115. Correlation Functions in Matrix Models Modified by Wormhole Terms , J. L. F. Barbón, K. Demeterfi, I.~R. Klebanov, C. Schmidhuber (1995)
  116. A note on the averaged null energy condition in quantum field theory, , Ulvi Yurtsever (1995)
  117. Quantum versions of Carlini-Miji\'c wormholes , A. Carlini, D.H. Coule, D.M. Solomons (1994)
  118. The Cosmological Probability Density Function for Bianchi Class A Models in Quantum Supergravity , Hugh Luckock, Chris Oliwa (1994)
  119. Information Loss in Black Holes and/or Conscious Beings? , Don N. Page (1994)
  120. Existence and uniqueness theorems for massless fields on a class of spacetimes with closed timelike curves. , John L. Friedman, Michael S. Morris (1994)
  121. Natural Wormholes as Gravitational Lenses. , By John G. Cramer, Robert L. Forward, Michael S. Morris, Matt Visser, Gregory Benford, and Geoffrey A. Landis (1994)
  122. Wormholes and Cosmic Strings , Pedro F. Gonzalez-Diaz (1994)
  123. Quantum State of Wormholes and Topological Arrow of Time , Pedro F. Gonzalez-Diaz (1994)
  124. "Magnetic Wormholes and Vertex Operators" , Harvendra Singh (1994)
  125. Wormhole Effects on Yang-Mills Theory , A. Lukas,
  126. Wormhole Solutions in the Kantowski--Sachs Spacetime , Marco Cavagli\`a (1994)
  127. Cosmological and Wormhole Solutions in Low-Energy Effective String Theory , Mariano Cadoni and Marco Cavaglia (1994)
  128. Quantization of a Locally Supersymmetric Friedmann Model with Supermatter , A.D.Y. Cheng, P.D. D'Eath and P.R.L.V. Moniz (1994)
  129. Quantization of Bianchi Models in N=1 Supergravity with a Cosmological Constant , A.D.Y. Cheng, P.D. D'Eath and P.R.L.V. Moniz (1994)
  130. Hypertime Formalism for Spherically Symmetric Black Holes and Wormholes , Stephen P. Braham (1994)
  131. Causality Properties of Topologically Nontrivial Space-Time Models , M. Yu (1994)
  132. "Hollow Cosmic String: the General-Relativistic Hollow Cylinder" , G\'erard Cl\'ement and Ilhem Zouzou (1994)
  133. Wormholes as Basis for the Hilbert Space in Lorentzian Gravity , Guillermo A Mena Marugan (1994)
  134. On Spontaneous Compactification in Multidimensional Cosmology , U. Bleyer, A. Zhuk (1994)
  135. Multidimensional Classical and Quantum Wormholes in Models with Cosmological Constant , U. Bleyer, V. D. Ivashchuk, V. N. Melnikov, A. Zhuk (1994)
  136. Classical and Quantum Solutions of Conformally Related Multidimensional Cosmological Models , U. Bleyer, M. Rainer, A. Zhuk (1994)
  137. Stringy Quantum Cosmology of the Bianchi Class a , James E. Lidsey (1994)
  138. Traversable Wormholes in (2+1) and (3+1) Dimensions with a Cosmological Constant , M.S. Delgaty and R.B. Mann (1994)
  139. Bases of Wormholes in Quantum Cosmology , Guillermo A. Mena Marugan (1994)
  140. Fermions and Topology , Lee Smolin (1994)
  141. Multidimensional Cosmology With $m$-Component Perfect Fluid , V. D. Ivashchuk and V. N. Melnikov (1994)
  142. Chaos and Quantum Chaos in Cosmological Models , R. Graham (1994)
  143. Construction of Superstrings in Wormhole-Like Backgrounds , by C. Kounnas (1994)
  144. Exact Supersymmetric String Solutions in Curved Gravitational Backgrounds , I. Antoniadis, S. Ferrara and C. Kounnas (1994)
  145. On Pair Creation of Extremal Black Holes and Kaluza-Klein Monopoles , Fay Dowker, Jerome P. Gauntlett, Steven B. Giddings and Gary T. Horowitz (1993)
  146. Wormholes in Two Dimensional Dilaton Gravity , by Shin'ichi Nojiri and I. Oda (1993)
  147. van Vleck determinants: traversable wormhole spacetimes , Matt Visser (1993) Physical Review D49 (1994) 3963--3980.
  148. The Hartle-Hawking state for the Bianchi IX model in supergravity , R. Graham and H. Luckock (1993)
  149. Can wormholes exist? , V.Khatsymovsky (1993)
  150. Quantum Dynamics of Lorentzian Spacetime Foam , Ian Redmount and Wai-Mo Suen (1993)
  151. Complementarity in Wormhole Chromodynamics , by Hoi-Kwong Lo, Kai-Ming Lee, and John Preskill (1993)
  152. "Wormhole and Hawking Radiation" , M.Hotta and M.Yoshimura (1993)
  153. Black Hole Statistics Andrew Strominger (1993)
  154. Elliptic and circular wormholes , P.F. Gonz\'alez-D\'{\i}az (1993)
  155. Supersymmetric Homogeneous Quantum Cosmologies Coupled to a Scalar Field , J. BENE, E\"otv\"os R. GRAHAM (1993)
  156. Hilbert space of wormholes , by Luis J. Garay (1993)
  157. Black Holes, Wormholes, and the Disappearance of Global Charge ; Sidney Coleman and Shane Hughes (1993)
  158. Four Dimensional Gravitational Backgrounds Based on N=4 c=4 Superconformal Systems , C. Kounnas (1993)
  159. Physical states in N = 1 supergravity, P.D. D'Eath (1993)
  160. Functional Change of Variables in the Wheeler--De Witt Equation Marco Cavagli\`a (1993)
  161. Global Structure of a Black-hole Cosmos and its Extremes , Dieter R. Brill and Sean A. Hayward (1993)
  162. Hawking's chronology protection conjecture: singularity structure of the quantum stress--energy tensor , By Matt Visser (1993)
  163. Topology changing processes and symmetries of string effective action , S. Pratik Khastgir and Jnanadeva Maharana (1993)
  164. An Anisotropic Wormhole:Tunnelling in Time and Space , M. Cavaglia' V. de Alfaro and F. de Felice (1993)
  165. "Mean Field Approach to the Giant Wormhole Problem" , A. Gamba, I. Kolokolov and M. Martellini (1992)
  166. Wormholes and symmetries of string effective action by S. Pratik Khastgir and Jnanadeva Maharana (1992)
  167. Inflating Lorentzian Wormholes ,Thomas A. Roman (1992)
  168. Gauge Field Back-reaction on a Black Hole , David Hochberg, Thomas W. Kephart (1992)
  169. Wormhole Cosmology and the Horizon Problem David Hochberg, Thomas W. Kephart (1992)
  170. Is Quantum Spacetime Foam Unstable? Ian H. Redmount, Wai-Mo Suen (1992)
  171. Rational Conformal Field Theory and Multi-Wormhole Partition Function in 3-dimensional Gravity , Shun'ya Mizoguchi (1992)
  172. Jordan-Brans-Dicke Quantum Wormholes and Coleman's Mechanism Luis J. Garay, Juan Garcia-Bellido (1992)
  173. From wormhole to time machine: Comments on Hawking's Chronology Protection Conjecture , By Matt Visser (1992), Physical Review D v47, n2, p554-565. 15-Jan-1993.
  174. All-orders wormhole vertex operators from the Wheeler-deWitt equation , Alex Lyons (1992)
  175. The phase of scalar field wormholes at one loop in the path integral formulation for Euclidean quantum gravity , Alberto Carlini, Maurizio Martellini (1992)

Wormhole Books and non-web available bibliography

  1. Morris and Thorne. "Wormholes in Spacetime and Their Use for Interstellar Travel". American Journal of Physics v56, p395 (1988)
  2. Matt Visser. "Traversable Wormholes: Some Simple Examples." Physical Review D v39, n10, p3182-3184, 15-May-1989.
  3. M Visser. "Wormholes, Baby Universes and Causality." Physical Review D v41, n4, p1116-1124 (1990).
  4. Thorne et al. "Cauchy Problem in Spacetimes with Closed Timelike Curves." Physical Review D v42 p1915 (1990).
  5. KA Holcomb et al. "Formation of a "child" universe in an inflationary cosmological model." Physical Review D v39, n4 15-Feb-1989.
  6. AD Guth, Blau and Guendelman. "Dynamics of False Vacuum Bubbles." Physical Review D v35, n4 p174 (198?).
  7. Mikheeva and Novikov. "Inelastic Billiard Ball in a Spacetime with a Time Machine." Physical Review D v47, n4 p1432 15-Feb-1993.
  8. W Israel & AE Sikkema. Nature v349 n6304 p45 (1991).
  9. FJ Tipler. Quarterly Journal of the Royal Astronomical Society v22 p279 (1981)
  10. Eric K Drexler. "Engines of Creation" (1986) Garden City, New York: Anchor Press. Also Nanosystems 1991 draft
  11. Scientific American, April 1993, p10. AD Linde
  12. Matt Visser. "Traversable wormholes from surgically modified Schwarzschild spacetimes." Nuclear Physics B328 (1989) 203--212.
  13. Matt Visser. "Quantum mechanical stabilization of Minkowski signature wormholes." Physics Letters B242 (1990) 24--28.
  14. Matt Visser. "Quantum wormholes in Lorentzian signature." in: Proceedings of the Rice meeting, 1990 meeting of the Division of Particles and Fields of the American Physical Society, edited by: B. Bonner and H. Miettinen, (World Scientific, Singapore, 1990), volume 2, pp. 858--860.
  15. Matt Visser. "Quantum wormholes." Physical Review D43 (1991) 402--409.
  16. Matt Visser. "Wheeler wormholes and topology change: A minisuperspace analysis." Modern Physics Letters A6 (1991) 2663--2667.
  17. John Cramer, Robert Forward, Michael Morris, Gregory Benford, and Geoffrey Landis, M. Visser, "Natural wormholes as gravitational lenses." Physical Review D51 (1995) 3117--3120.
  18. Matt Visser, "Lorentzian Wormholes from Einstein to Hawking", Full length technical monograph. American Institute of Physics Press, July 1995.
  19. Halpern, P., "Cosmic Wormholes: the search for interstellar shortcuts", 523.01-dc20 / QB461.H24 1992
  20. Clarke, C.J.S. "Opening a Can of Womholes", Nature 348 (1990) 287
  21. M.S. Morris, K.S. Thorne, and U. Yurtsever, "How wormholes can act as time machines." PRL, v.61, p.1446 (1989)
  22. Kip S. Thorne, "Black Holes and Time Warps - Einstein's Outrageous Legacy", W. W. Norton & Company 1994
  23. Frolov, Valery P., and Igor D. Novikov, "Physical Effects in Wormholes and Time Machines", Phys. Review 42D (1990): 1057
  24. S.K. Blau, E.I. Guendelman, A.H. Guth, Phys. Review D 35, 1747, (1987)
  25. I. H. Redmount, "Wormholes and photon shells" Prog. Theoret. Phys. 73, 1401 (1985).
  26. Morris, M. Kip S. Thorn, "Wormholes, Time Machines and the Weak Energy Condition", Physical Review Letters 61 (1988): 1446
    27. It is argued that, if the laws of physics permit an advanced civilization to create and maintain a wormhole in space for interstellar travel, then that wormhole can be converted into a time machine with which causality might be violatable. Whether wormholes can be created and maintained entails deep, ill-understood issues about cosmic censorship, quantum gravity, and quantum field theory, including the question of whether field theory enforces an averaged version of the weak energy condition.
  27. .
  28. NANDI, K. K.; ALAM, S. M. K., "Stringy Wormholes ", General Relativity and Gravitation, V30, p1331 (1998)
    29. The possibility of static wormhole solutions in the string modified gravity is examined. It turns out that ``practically traversable" wormholes are not available in the two types of solutions considered. Interestingly, these two solutions display exactly opposite wormhole features.
  29. XIAO, XING-GUO; CARR, B. J.; LIU, LIAO, "Wormholes in Vacuum Brans-Dicke Theory", General Relativity and Gravitation, V28, p1377 (1996)
    30. We present a Euclidean wormhole solution in vacuum Brans-Dicke theory, which is different from that obtained by Accetta et al. This wormhole appears to have the feature that its throat dimension increases linearly with Euclidean cosmic time, although this increase may not be measurable. It also requires a negative Brans-Dicke parameter W
  30. SHEN, YOU-GEN, "Quantum wormhole with conformal scaler field", Acta Astronomica Sinica, v34, no.2, p152 (1993)
    31. Using the Hartle-Hawking method, we discuss the quantum wormhole with conformal scatter field. The corresponding Wheeler-De Witt equation was derived, and the wave function of the wormhole calculated. The wormhole's wave function we obtained is the product of double harmonic solutions. After analyzing the wormhole's wave function, we found that the probability density of the wormhole equals appearing at a = 0, and that the minimal radius of the ground state of the wormhole is on the planck scale. Analyzing the wormhole's wave function also reveals that the wormhole was likely be piled at j = 0
  31. HOCHBERG, DAVID; KEPHART, THOMAS W., "Wormhole cosmology and the horizon problem", Physical Review Letters, v70, no.18, p2665 (1993)
    32. We construct an explicit class of dynamic Lorentzian wormholes connecting Friedman-Robertson-Walker spacetimes. These wormholes can allow two-way transmission of signals between spatially separated regions of spacetime and could permit such regions to come into thermal contact. The cosmology of a network of early Universe wormholes is discussed
  32. SHEN, YOU-GEN; TAN, ZHEN-QIANG; WANG, YOUNG-JIU, "Wormholes and the fermions field", Acta Astronomica Sinica, v33, no.2, p. 146.(1992)
    33. The concept of a wormhole is briefly discussed. A wormhole model with a coupled fermionic field is then presented. The governing equations are derived, and solutions are obtained in analytical form.
  33. WANG, JIN, " Two Kaluza-Klein wormhole solutions", Astrophysics and Space Science, v189, no.1, p5, Mar (1992)
    34. Ten-dimensional supergravity models and monople models are examined analytically to obtain wormhole solutions which relate to the tunneling process. The S1 x SN x SM topology is used as the framework for the model of ten-dimensional supergravity, and a Freund-Rubin-type spontaneous compactification is used to derive the wormhole solution in D = 1 + N + M dimensions. Two asymptotic regions are connected by the wormhole solution, and the solution can be interpreted in terms of the tunneling between regions in quantum cosmology.
  34. HAWKING, S. W.,"The alpha parameters of wormholes", Physica Scripta, vol.T36, p222 (1991)
    35. The formulation of wormholes for calculating observations at low energies can be interpreted as quantum theory decomposing into noninteracting super selection sectors labelled by different values of effective coupling constants, called the alpha parameters. This paper examines the interpretation of the alpha parameters, and investigates whether wormholes just give rise to a classical degree of uncertainty in the effective coupling constants. The argument that one can replace wormholes by effective interactions by considering quantum field theories in one and two dimensions, in which the topology is not fixed in advance, is examined. These theories are Feynman diagrams and string theory, which exhibit many of the same features as wormholes; they have the great advantage of being well defined, and they can be evaluated exactly. It is shown that the alpha parameters are different modes of a single quantum field. This alpha field is a field on the superspace of the theory, in other words, a third quantized field.
  35. CHOI, KIWOON; HOLMAN, R., "Wormholes and Peccei-Quinn symmetries" Physical Review Letters, vol. 64, Jan. 8, 1990, p. 131.
    36. Consideratin is given to the complementary roles of wormholes and Peccei-Quinn (1977) symmetries in solving the strong CP problem. It is shown that Peccei-Quinn symmetries provide a wormhole parameter that couples only to the QCD anomaly. This makes it possible to implement the wormhole solution to the strong CP problem constructed by Grinstein and Wise (1988) and Preskill (1989).
  36. HALLIWELL, JONATHAN J.; LAFLAMME, RAYMOND "Conformal scalar field wormholes", Classical and Quantum Gravity, vol. 6, Dec. 1, 1989, p. 1839
    37. The Euclidian Einstein equations with a cosmological constant and a conformally coupled scalar field are solved, taking the metric to be of the Robertson-Walker type. In the case l = 0, solutions are found which represent a wormhole connecting two asymptotically flat Euclidian regions. In the case l greater than 0, the solutions represent tunneling from a small Tolman-like universe to a large Robertson-Walker universe.
  37. LEE, KIMYEONG "Wormholes and Goldstone bosons", Physical Review Letters, vol. 61, July 18, 1988, p. 263
    38. The quantum theory of a complex scalar field coupled to gravity is considered. A formalism for the semiclassical approach in Euclidean time is developed and used to study wormhole physics. The conserved global charge plays an essential role. Wormhole physics turns on only after the symmetry is spontaneously broken. An effective self-interaction for Goldstone bosons due to wormholes is shown to be a cosine potential, whose vacuum energy will be reduced by the cosmic expansion. Some implications and questions are discussed.

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