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Title: Fake conformal symmetry in conformal cosmological models

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Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 91; Journal Issue: 6; Journal ID: ISSN 1550-7998
American Physical Society
Country of Publication:
United States

Citation Formats

Jackiw, R., and Pi, So-Young. Fake conformal symmetry in conformal cosmological models. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.067501.
Jackiw, R., & Pi, So-Young. Fake conformal symmetry in conformal cosmological models. United States. doi:10.1103/PhysRevD.91.067501.
Jackiw, R., and Pi, So-Young. 2015. "Fake conformal symmetry in conformal cosmological models". United States. doi:10.1103/PhysRevD.91.067501.
title = {Fake conformal symmetry in conformal cosmological models},
author = {Jackiw, R. and Pi, So-Young},
abstractNote = {},
doi = {10.1103/PhysRevD.91.067501},
journal = {Physical Review D},
number = 6,
volume = 91,
place = {United States},
year = 2015,
month = 3

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.91.067501

Citation Metrics:
Cited by: 18works
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  • We show that creation of field quanta can occur even in conformally trivial situations, contrary to popular belief. This conformal-symmetry breaking owes its existence to the so-called conformal anomaly in the field stress tensor which, in the case of interacting fields in curved space-time, contains state-dependent, nongeometrical, and other terms which are associated with particle generation. The effect is explicitly demonstrated for massless lambdaphi/sup 4/ theory in a Robertson-Walker space-time.
  • In recent series of papers, we found an arbitrary dimensional, time-evolving, and spatially inhomogeneous solution in Einstein-Maxwell-dilaton gravity with particular couplings. Similar to the supersymmetric case, the solution can be arbitrarily superposed in spite of nontrivial time-dependence, since the metric is specified by a set of harmonic functions. When each harmonic has a single point source at the center, the solution describes a spherically symmetric black hole with regular Killing horizons and the spacetime approaches asymptotically to the Friedmann-Lemaitre-Robertson-Walker (FLRW) cosmology. We discuss in this paper that in 5 dimensions, this equilibrium condition traces back to the first-order 'Killing spinor'more » equation in 'fake supergravity' coupled to arbitrary U(1) gauge fields and scalars. We present a five-dimensional, asymptotically FLRW, rotating black-hole solution admitting a nontrivial 'Killing spinor', which is a spinning generalization of our previous solution. We argue that the solution admits nondegenerate and rotating Killing horizons in contrast with the supersymmetric solutions. It is shown that the present pseudo-supersymmetric solution admits closed timelike curves around the central singularities. When only one harmonic is time-dependent, the solution oxidizes to 11 dimensions and realizes the dynamically intersecting M2/M2/M2-branes in a rotating Kasner universe. The Kaluza-Klein-type black holes are also discussed.« less
  • An infinite set of conformally invariant solutions of the two-dimensional quantum field theory, possessing a global symmetry Z /sub eta/ is constructed. These solutions can describe the critical behavior of Z /sub eta/ symmetric statistical systems.