%0 Journal Article %1 WOS:000266615000005 %A Tahim, M O %A Landim, R R %A Almeida, C A S %C 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE %D 2009 %I WORLD SCIENTIFIC PUBL CO PTE LTD %J MODERN PHYSICS LETTERS A %K Einstein Landau-Raychadhuri equation; gravity} model; {Spacetime %N 15 %P 1209-1217 %R 10.1142/S0217732309028862 %T SPACETIME AS A DEFORMABLE SOLID %V 24 %X In this letter we discuss the possibility of treating the spacetime by itself as a kind of deformable body for which we can define a fundamental lattice, just like atoms in crystal lattices. We show three signs pointing in that direction. We simulate the spacetime manifold by a very specific congruence of curves and use the Landau-Raychadhuri equation to study the behavior of such a congruence. The lattice appears because we are forced to associate to each curve of the congruence a sort of fundamental ``particle''. The worldlines of these particles should be identified with the congruence fulfilling the spacetime manifold. The conclusion is that when describing the deformations of the spacetime the Einstein equations emerge and the spacetime metric should be treated as a secondary (not fundamental) object of the theory.

@article{WOS:000266615000005, abstract = {In this letter we discuss the possibility of treating the spacetime by itself as a kind of deformable body for which we can define a fundamental lattice, just like atoms in crystal lattices. We show three signs pointing in that direction. We simulate the spacetime manifold by a very specific congruence of curves and use the Landau-Raychadhuri equation to study the behavior of such a congruence. The lattice appears because we are forced to associate to each curve of the congruence a sort of fundamental ``particle''. The worldlines of these particles should be identified with the congruence fulfilling the spacetime manifold. The conclusion is that when describing the deformations of the spacetime the Einstein equations emerge and the spacetime metric should be treated as a secondary (not fundamental) object of the theory.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE}, author = {Tahim, M O and Landim, R R and Almeida, C A S}, biburl = {https://www.bibsonomy.org/bibtex/28a6e75a1ff56a18e706c7e1286a83bc2/ppgfis_ufc_br}, doi = {10.1142/S0217732309028862}, interhash = {1f6daca7a78591dbb6164386e2d2207b}, intrahash = {8a6e75a1ff56a18e706c7e1286a83bc2}, issn = {0217-7323}, journal = {MODERN PHYSICS LETTERS A}, keywords = {Einstein Landau-Raychadhuri equation; gravity} model; {Spacetime}, number = 15, pages = {1209-1217}, publisher = {WORLD SCIENTIFIC PUBL CO PTE LTD}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {SPACETIME AS A DEFORMABLE SOLID}, tppubtype = {article}, volume = 24, year = 2009 }