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Quantum time machine

AuthorsGonzález-Díaz, Pedro F.
Keywords[PACS[ Quantum field theory in curved spacetime
[PACS[ Spacetime topology, causal structure, spinor structure
Issue Date1998
PublisherAmerican Physical Society
CitationPhysical Review D - Particles, Fields, Gravitation and Cosmology 58: 1240111- 1240117 (1998)
AbstractThe continuation of Misner space into the Euclidean region is seen to imply the topological restriction that the period of the closed spatial direction becomes time dependent. This restriction results in a modified Lorentzian Misner space in which the renormalized stress-energy tensor for quantized complex massless scalar fields becomes regular everywhere, even on the chronology horizon. A quantum-mechanically stable time machine with just the submicroscopic size may then be constructed out of the modified Misner space, for which the semiclassical Hawking chronology protection conjecture is no longer an obstruction. © 1998 The American Physical Society
Identifiersdoi: 10.1103/PhysRevD.58.124011
issn: 0556-2821
Appears in Collections:(CFMAC-IFF) Artículos
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