Zobrazeno 1 - 10
of 64
pro vyhledávání: '"David Seery"'
Autor:
David Seery, Michaela G. Lawrence
Publikováno v:
Physical Review
We revisit the "sequester" proposal of Kaloper, Padilla and collaborators, in which the amplitude of the cosmological constant is decoupled from large contributions due to loops containing Standard Model particles. We review the different formulation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f585c63dc86503de49684f91e43615d7
http://repo.scoap3.org/api
http://repo.scoap3.org/api
We update predictions for observables in the "delicate" D3/anti-D3 inflationary model on the conifold. We use a full CMB likelihood calculation to assess goodness-of-fit, which is necessary because in this model the zeta power spectrum often cannot b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a62a2c2006aeb3a7480cfd3c6033a9c1
We study the impact of different bias and redshift-space models on the halo power spectrum, quantifying their effect by comparing the fit to a subset of realizations taken from the WizCOLA suite. These provide simulated power spectrum measurements be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6b83cb5ad435d34018054b42e6d9e54
http://sro.sussex.ac.uk/id/eprint/91585/1/1805.12394v2.pdf
http://sro.sussex.ac.uk/id/eprint/91585/1/1805.12394v2.pdf
We consider a disformal coupling between Standard Model matter and a cubic Galileon scalar sector, assumed to be a relict of some other physics that solves the cosmological constant problem rather than a solution in its own right. This allows the ene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d26bcd8a90018a07ebc6297f96df3398
Over the next decade, improvements in cosmological parameter constraints will be driven by surveys of large-scale structure. Its inherent non-linearity suggests that significant information will be embedded in higher correlations beyond the two-point
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5bf040a4f10e300b6e25594bef93db6
http://sro.sussex.ac.uk/id/eprint/69105/4/stx1681.pdf
http://sro.sussex.ac.uk/id/eprint/69105/4/stx1681.pdf
Observations of the microwave background fluctuations suggest a scale-dependent amplitude asymmetry of roughly 2.5 sigma significance. Inflationary explanations for this 'anomaly' require non-Gaussian fluctuations which couple observable modes to tho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd855ab60953a894bb96eb9880b7d263
http://sro.sussex.ac.uk/id/eprint/62039/1/1601.01970.pdf
http://sro.sussex.ac.uk/id/eprint/62039/1/1601.01970.pdf
Autor:
David Seery, Sean Butchers
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2018:031-031
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61edc5597cd4ed860fadab32a92c6eb9
https://doi.org/10.1088/1475-7516/2018/07/031
https://doi.org/10.1088/1475-7516/2018/07/031
Autor:
David H. Lyth, David Seery
Publikováno v:
Physics Letters B. 662:309-313
We show that during inflation, a quantum fluctuation becomes classical at all orders if it becomes classical at first order. Implications are discussed.
Comment: 4 pages, uses RevTeX4 LaTeX document class. v2: More details of the classicality ar
Comment: 4 pages, uses RevTeX4 LaTeX document class. v2: More details of the classicality ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d24e28c671330e532e0329f22422a51d
https://doi.org/10.1016/j.physletb.2008.03.010
https://doi.org/10.1016/j.physletb.2008.03.010
Inflationary observables, like the power spectrum, computed at one- and higher-order loop level seem to be plagued by large infra-red corrections. In this short note, we point out that these large infra-red corrections appear only in quantities which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fdbc03392325ed9c3970afee5603a48
http://www.openaccessrepository.it/record/17092
http://www.openaccessrepository.it/record/17092
We give an explicit relation, up to second-order terms, between scalar-field fluctuations defined on spatially-flat slices and the curvature perturbation on uniform-density slices. This expression is a necessary ingredient for calculating observable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2187cd6cfbfb19d8488131bb3d3dde7e
http://sro.sussex.ac.uk/id/eprint/56910/1/1.pdf
http://sro.sussex.ac.uk/id/eprint/56910/1/1.pdf