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001 978-3-319-01210-0
003 DE-He213
005 20140220082508.0
007 cr nn 008mamaa
008 130920s2014 gw | s |||| 0|eng d
020 _a9783319012100
_9978-3-319-01210-0
024 7 _a10.1007/978-3-319-01210-0
_2doi
050 4 _aQC178
050 4 _aQC173.5-173.65
072 7 _aPHDV
_2bicssc
072 7 _aPHR
_2bicssc
072 7 _aSCI033000
_2bisacsh
082 0 4 _a530.1
_223
100 1 _aPearson, Jonathan.
_eauthor.
245 1 0 _aGeneralized Perturbations in Modified Gravity and Dark Energy
_h[electronic resource] /
_cby Jonathan Pearson.
264 1 _aCham :
_bSpringer International Publishing :
_bImprint: Springer,
_c2014.
300 _aXIX, 200 p. 17 illus., 14 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
505 0 _aGravitational theories and cosmology -- The effective action formalism for cosmological perturbations -- Metric only and first order scalar field theory -- High derivative theories -- Explicit theories -- Connections to massive gravity -- Generalized fluid description -- Observational signatures of generalized cosmological perturbations -- Discussion and final remarks.
520 _aWhen predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to "invent" around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gravitational field of the Sun. There are many alternative theories of gravity,  each with the aim of describing observations of our Universe where General Relativity fails. Whether it is dark energy or some modified theory of gravity, it is clear that there is some "dark sector" in the Universe. In this thesis the author constructs a unifying framework for understanding the observational impact of general classes of dark sector theories, by formulating equations of state for the dark sector perturbations.
650 0 _aPhysics.
650 1 4 _aPhysics.
650 2 4 _aClassical and Quantum Gravitation, Relativity Theory.
650 2 4 _aCosmology.
650 2 4 _aMathematical Applications in the Physical Sciences.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9783319012094
830 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
856 4 0 _uhttp://dx.doi.org/10.1007/978-3-319-01210-0
912 _aZDB-2-PHA
999 _c92610
_d92610