| Volume 108, Issues 5 - 6 September 2023 | |
Advertisement  | Do you need language assistance for your next submission? Take advantage of new translation, figure assistance, and text editing services provided by APS and Editage. Experience exceptional support, expertise, and dedication for all your publishing needs. Get a quote. | | | | | | | Not an APS member? Join today to start connecting with a community of more than 50,000 physicists. | | | | Randall D. Kamien Phys. Rev. D 108, 050001 (2023) – Published 25 September 2023 | | | Randall D. Kamien Phys. Rev. D 108, 060001 (2023) – Published 25 September 2023 | | | Editors' Suggestion Fumihiro Naokawa and Toshiya Namikawa Phys. Rev. D 108, 063525 (2023) – Published 27 September 2023  | This paper takes into account the effect of Cosmic Microwave Background (CMB) gravitational lensing on the Cosmic Birefringence linear polarization rotation angle. It thus paves the way to more accurate interpretation of future-mission data that will seek signatures of Axion-like Particles. | | | | | | Editors' Suggestion Valerio De Luca, Alex Kehagias, and Antonio Riotto Phys. Rev. D 108, 063531 (2023) – Published 28 September 2023  | Recent pulsar timing array data suggest the presence of stochastic gravitational waves, implying a significant amplitude in curvature perturbations and thus a large abundance of primordial black holes (PBH). The latter is at odds with the observed constraints on the PBH abundance. The authors scrutinize in detail the standard calculation and approximations in determining the PBH abundance and point out several uncertainties, concluding that the PBH abundance is likely much smaller than what is the current consensus. | | | | | | Editors' Suggestion Christopher Whittall and Leor Barack Phys. Rev. D 108, 064017 (2023) – Published 11 September 2023  | The self-force problem in gravity is an approach to the two-body problem in which the mass ratio is extreme enough that the smaller-mass body can be usefully treated as a test particle to the lowest order in the mass ratio. In this paper, frequency domain methods, which are particularly suited for bound orbital motion, are developed in an innovative way so that they can be applied to study hyperbolic scattering in the "toy" problem of a scalar charge. Frequency domain methods as developed here may prove to be a promising approach to the full gravitational self-force problem. | | | | | | Editors' Suggestion Mateja Bošković and Enrico Barausse Phys. Rev. D 108, 064033 (2023) – Published 18 September 2023  | Due to non-linearities, the two body problem in tensor-scalar theory with kinetic screening is notoriously difficult to solve. In this work, the authors present an analytical solution to this problem and validate it with numerical simulations. They demonstrate that the efficiency of the screening depends on the mass ratio of the two bodies. | | | | | | Editors' Suggestion Luc Blanchet, Guillaume Faye, Quentin Henry, François Larrouturou, and David Trestini Phys. Rev. D 108, 064041 (2023) – Published 21 September 2023  | A collective effort involving various theoretical frameworks results in the successful gravitational wave phasing of nonspinning compact binary systems on quasicircular orbits up to the 4.5 post-Newtonian order. | | | | | | Editors' Suggestion Daniel Louis Jafferis, David K. Kolchmeyer, Baur Mukhametzhanov, and Julian Sonner Phys. Rev. D 108, 066015 (2023) – Published 20 September 2023  | It was conjectured that a particular two-dimensional gravity, Jackiw–Teitelboim (JT) gravity, is dual to a single-trace one-matrix Random Matrix Model (RMM). The authors extend this duality to JT gravity minimally coupled to a free massive scalar field and a single-trace two-matrix model. They study in detail the matching of genus zero one- and two-boundary expectation values in the matrix model to the gravitational disk correlators. | | | | | | | |
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