Abstract
Following our previous work on the existence of 1-soliton solution to the Einstein gravitational field equations in the presence of a spherically-symmetric static background field, we have found six sets of analytical 2-soliton solutions to the Einstein field equations under a certain ansatz in the absence of the stated background field. Numerical analysis shows that if the two solitons of the transverse nature are injected at space variable z→±∞, the longitudinal field componentg 33 will acquire non-zero values for a bounded spatial region at later time. The nature of the solitons becomes rather complex when they interact. The amplitudeg μν of each soliton may change its magnitude resulting from the interaction. We have found that we might interpret the evolution of one field component as the gravitational instanton in our solutions. We must remark also that the total energy of the interacting solitons remains constant, as expected, at all time. These solutions correspond to the situation where the Riemann tensor is in general non-zero and are truly non-trivial solutions.
Similar content being viewed by others
References
Au, C. and Fung, P. C. W.: 1984,Phys. Rev. 30B, 1797.
Belinskii, V. A. and Fargion, D.: 1980,Nuovo Cimento B59, 143.
Belinskii, V. A. and Zakharov, V. E.: 1978,Soviet Phys. JETP 48, 984.
Fung, P. C. W. and Tao Fuzhen: 1987,Astrophys. Space Sci. 139, 311.
Ibañez, J. and Verdaguer, E.: 1983,Phys. Rev. Letters 51, 1313.
Ibañez, J. and verdaguer, E.: 1985,Phys. Rev. D31, 251.
Landau, L. D. and Lifshitz, E. M.: 1975, The Classical Theory of Fields, Pergamon Press, London.
Misner, C. W., Thorne, K. S., and Wheeler, J. A.: 1973,Gravitation, Freeman Co., San Francisco
Tao Fuzhen: 1987,Acta Phys. Sinica 36, 350.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
To, F.T., Fung, P.C.W. & Au, C. Exact two-soliton solutions to the Einstein gravitational field equations. Astrophys Space Sci 184, 313–330 (1991). https://doi.org/10.1007/BF00642979
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00642979