RT Journal Article
T1 Chronology protection implementation in analogue gravity
A1 Barceló, Carlos
A1 Eguia Sánchez, Jokin
A1 García Moreno, Gerardo
A1 Jannes, Gil
AB Analogue gravity systems offer many insights into gravitational phenomena, both at the classical and at the semiclassical level. The existence of an underlying Minkowskian structure (or Galilean in the non-relativistic limit) in the laboratory has been argued to directly forbid the simulation of geometries with Closed Timelike Curves (CTCs) within analogue systems. We will show that this is not strictly the case. In principle, it is possible to simulate spacetimes with CTCs whenever this does not entail the presence of a chronological horizon separating regions with CTCs from regions that do not have CTCs. We find an Analogue-gravity Chronology protection mechanism very similar in spirit to Hawking’s Chronology Protection hypothesis. We identify the universal behaviour of analogue systems near the formation of such horizons and discuss the further implications that this analysis has from an emergent gravity perspective. Furthermore, we build explicit geometries containing CTCs, for instance spacetimes constructed from two warp-drive configurations, that might be useful for future analysis, both from a theoretical and an experimental point of view.
PB Springer
SN 1434-6052
YR 2022
FD 2022-04-06
LK https://hdl.handle.net/20.500.14352/71950
UL https://hdl.handle.net/20.500.14352/71950
LA eng
NO Barceló, Carlos, Jokin Eguia Sánchez, Gerardo García-Moreno, y Gil Jannes. «Chronology Protection Implementation in Analogue Gravity». The European Physical Journal C 82, n.o 4 (6 de abril de 2022): 299. https://doi.org/10.1140/epjc/s10052-022-10275-3.
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Junta de Andalucía
NO Centro de Excelencia Severo Ochoa
NO Gobierno de España
DS Docta Complutense
RD 9 abr 2025