With the goal of broadening its coverage of astrophysics, PRD hired astrophysicist Enrico Ramirez-Ruiz as an Associate Editor and appointed three experts in astrophysics to its Editorial Board.

Evaluating Feynman integrals at higher orders in coupling constants in quantum field theories remains a complicated task. In this paper, the authors complete another step in the ongoing program of calculating Feynman integrals using the auxiliary mass flow method, namely they show how to include linear propagators up to four loops.

The swampland program aims to classify low-energy effective field theories which have a consistent completion in quantum gravity. This led to an intricate web of conjectures about the properties of any quantum gravity. E.g., the $Emergent$ $String$ $Conjecture$ makes statements about the structure of the spectrum in an asymptotic limit of the parameters (moduli). The authors look at theories that include (M)embranes which classically would violate that conjecture. However, a skilled application of several dualities allows them to take the necessary quantum corrections into account which impose further obstructions such that the spectrum actually satisfies said conjecture.

The merging of two neutron stars could give birth to a third, more extreme variety that is stabilized by an incredibly strong magnetic field.

Synopsis on:
Arthur G. Suvorov and Kostas Glampedakis
Phys. Rev. D 105, L061302 (2022)

New black hole simulations that incorporate quantum gravity indicate that when a black hole dies, it produces a gravitational shock wave that radiates information, a finding that could solve the information paradox.

Synopsis on:
Viqar Husain, Jarod George Kelly, Robert Santacruz, and Edward Wilson-Ewing
Phys. Rev. Lett. 128, 121301 (2022)

Thanks to a new analysis technique, precision measurements of the Earth-Moon distance should improve estimates of the size of the gravitational-wave background.

Focus story on:
Diego Blas and Alexander C. Jenkins
Phys. Rev. Lett. 128, 101103 (2022)

Diego Blas and Alexander C. Jenkins
Phys. Rev. D 105, 064201 (2022)

At the beginning of 2021, eight Physical Review journals began publishing Letters which are intended for the accelerated publication of important new results targeted to the specific readership of each journal.

APS Editor in Chief, Michael Thoennessen, discusses a new opportunity for communicating authors to include their pronouns together with their contact email in order to promote a more respectful, inclusive, and equitable environment.

From nature’s tiniest particles to waves that traverse the Universe—physicists remember resounding finds from the last half-century.

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