arXiv Spotlight

A note of interesting papers which have recently appeared on the arXiv.

The list is by no means exhaustive, but does reflect some of Scott's current research interests.

Comments/corrections are welcomed!

List of posts (brief description):

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10 September, 2017 arXiv:1709.01927 A multipole-expanded effective field theory for vortex ring-sound interactions (29 pages) ... ...
Posted 14 Sept 2017, 07:55 by Scott Melville
03 September, 2017 arXiv:1708.08253 Gravitational Effective Action at Second Order in Curvature and Gravitatonal Waves (11 pages) ... ...
Posted 14 Sept 2017, 07:54 by Scott Melville
27 August, 2017 arXiv:1708.06764 Self-interacting Spin-2 Dark Matter (10 pages) ... ...
Posted 14 Sept 2017, 07:53 by Scott Melville
20 August, 2017 arXiv:1708.05716 Massive Spin-2 Scattering and Asymptotic Superluminality (46 pages) ... ...
Posted 14 Sept 2017, 07:52 by Scott Melville
13 August, 2017 arXiv:1708.03226 UV physics and the speed of sound during inflation (19 pages) ... ...
Posted 14 Sept 2017, 07:51 by Scott Melville
06 August, 2017 arXiv:1708.01709 On the Effective Field Theory for Quasi-Single Field Inflation (12 pages) ... ...
Posted 14 Sept 2017, 07:50 by Scott Melville
30 July, 2017 arXiv:1707.06931 Galileon apples and free oranges (13 pages) ... ...
Posted 14 Sept 2017, 07:49 by Scott Melville
23 July, 2017 arXiv:1707.05485 Large gauge transformation, Soft theorem, and Infrared divergence in inflationary spacetime (35 pages) ... ...
Posted 14 Sept 2017, 07:48 by Scott Melville
16 July, 2017 arXiv:1707.03415 Vacuum Stability in the Early Universe and the Backreaction of Classical Gravity (12 pages) ... ...
Posted 14 Sept 2017, 07:47 by Scott Melville
09 July, 2017 arXiv:1707.01739 A Scale-up of Lambda_3 (21 pages) ... ...
Posted 14 Sept 2017, 07:44 by Scott Melville
02 July, 2017 arXiv:1706.08051 Inflation to Structures: EFT all the way (34 pages) The EFT of inflation (an EFT for the Goldstone of spontaneously broken time translations) is used to map ...
Posted 14 Sept 2017, 07:28 by Scott Melville
25 June, 2017 arXiv:1706.07143 Black Hole Information Revisted (11 pages) It is argued that the thermal Hawking radiation emitted by a black hole is accompanied by a (highly correlated) soft radiation ...
Posted 14 Sept 2017, 07:26 by Scott Melville
18 June, 2017 arXiv:1706.03758 Simplifying the EFT of Inflation: Generalized Disformal Transformations and Redundant Couplings (21 pages) By performing disformal transformation, which do not affect the late-time cosmological observables, it ...
Posted 14 Sept 2017, 07:25 by Scott Melville
11 June, 2017 arXiv:1706.01871 Irreversibility of the renormalization group flow in non-unitary quantum field theory (27 pages) Assuming PT and Poincare invariance, a positive spectrum, and a local energy-momentum ...
Posted 14 Sept 2017, 07:23 by Scott Melville
04 June, 2017 arXiv:1706.00436 Soft Hair as a Soft Wig (20 pages) A canonical transformation is identified which decouples the soft degrees of freedom in classical gravity and electromagnetism. These soft ...
Posted 14 Sept 2017, 07:22 by Scott Melville
28 May, 2017 arXiv:1705.07082 Gravity and handedness of photons (6 pages) By analogy with the chiral anomaly - in which coupling to a background electromagnetic field breaks the left-right handed chiral ...
Posted 1 Jul 2017, 13:19 by Scott Melville
21 May, 2017 arXiv:1705.04311 Infrared Divergences in QED, Revisited (21 pages) Vanishing S matrix elements in QED are often attributed to 'IR divergences' which are cancelled by tracing over soft photons ...
Posted 1 Jul 2017, 13:07 by Scott Melville
14 May, 2017 arXiv:1705.03025 Unifying Relations for Scattering Amplitudes (29 pages) A set of Lorentz invariant differential operators can be used to transmute tree-level amplitudes into new ones. This technique ...
Posted 1 Jul 2017, 13:06 by Scott Melville
07 May, 2017 arXiv:1705.00626 Hidden Simplicity of the Gravity Action (18 pages) By introducing an auxilliary field, it is possible to rewrite the Einstein-Hilbert action as purely cubic vertices. Not ...
Posted 1 Jul 2017, 13:05 by Scott Melville
30 April, 2017 arXiv:1704.07552 Screening in perturbative approaches to LSS (7 pages) The linear and quasi-linear regimes of Large Scale Structure formation are sensitive to the onset of any screening ...
Posted 1 Jul 2017, 13:04 by Scott Melville
23 April, 2017 arXiv:1704.05309 The matter power spectrum in redshift space using effective field theory (69 pages) By including and resumming one-loop corrections to an EFT for the redshift-space ...
Posted 1 Jul 2017, 13:03 by Scott Melville
16 April, 2017 arXiv:1704.02980 Classifying Galileon p-form theories (17 pages) All Abelian p-form theories with gauge invariant equations of motion with at most second derivatives are classified, and the ...
Posted 21 Apr 2017, 07:00 by Scott Melville
09 April, 2017 arXiv:1703.10812 (RE:1612.05860) Effective loop quantum cosmology as a higher-derivative scalar-tensor theory (21 pages) A large class of higher derivative scalar field theories which reproduce ...
Posted 21 Apr 2017, 06:59 by Scott Melville
02 April, 2017 arXiv:1703.09573 Observational constraints on generalized Proca theories (28 pages) Comparing a Markov-Chain-Monte-Carlo simulation of the de Sitter attractor in generalized Proca theory with a variety ...
Posted 21 Apr 2017, 06:57 by Scott Melville
26 March, 2017 arXiv:1703.07885 Can scalars have asymptotic symmetries? (34 pages) For Yukawa-type couplings φ ψ², between massless scalars φ and other massive particles ψ, an infinite number of ...
Posted 21 Apr 2017, 06:56 by Scott Melville
19 March, 2017 arXiv:1703.03797 Effective Description of Higher-Order Scalar-Tensor Theories (34 pages) The EFT of dark energy is extended to include time derivatives of the lapse, which had previously ...
Posted 22 Mar 2017, 09:21 by Scott Melville