An asymptotically safe guide to quantum gravity and matter

A Eichhorn - Frontiers in Astronomy and Space Sciences, 2019 - frontiersin.org
Asymptotic safety generalizes asymptotic freedom and could contribute to understanding
physics beyond the Standard Model. It is a candidate scenario to provide an ultraviolet …

Ultra high energy cosmic rays The intersection of the Cosmic and Energy Frontiers

A Coleman, J Eser, E Mayotte, F Sarazin… - Astroparticle …, 2023 - Elsevier
The present white paper is submitted as part of the “Snowmass” process to help inform the
long-term plans of the United States Department of Energy and the National Science …

Supercooling in radiative symmetry breaking: theory extensions, gravitational wave detection and primordial black holes

A Salvio - Journal of Cosmology and Astroparticle Physics, 2023 - iopscience.iop.org
First-order phase transitions, which take place when the symmetries are predominantly
broken (and masses are then generated) through radiative corrections, produce observable …

Gravitational portals with nonminimal couplings

S Cléry, Y Mambrini, KA Olive, A Shkerin, S Verner - Physical Review D, 2022 - APS
We consider the effects of nonminimal couplings to curvature of the form ξ SS 2 R for three
types of scalars: the Higgs boson, the inflaton, and a scalar dark matter candidate. We …

Progress in Higgs inflation

DY Cheong, SM Lee, SC Park - Journal of the Korean Physical Society, 2021 - Springer
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Collisions of false-vacuum bubble walls in a quantum spin chain

A Milsted, J Liu, J Preskill, G Vidal - PRX Quantum, 2022 - APS
We simulate, using nonperturbative methods, the real-time dynamics of small bubbles of
“false vacuum” in a quantum spin chain near criticality, where the low-energy physics is …

Constraining power of asymptotic safety for scalar fields

A Eichhorn, M Pauly - Physical Review D, 2021 - APS
We explore the phenomenology of scalar fields coupled to asymptotically safe quantum
gravity, in light of their potential significance for dark matter, for the inflaton as well as …

A new picture of quantum tunneling in the real-time path integral from Lefschetz thimble calculations

J Nishimura, K Sakai, A Yosprakob - Journal of High Energy Physics, 2023 - Springer
A bstract It is well known that quantum tunneling can be described by instantons in the
imaginary-time path integral formalism. However, its description in the real-time path integral …

[HTML][HTML] Electroweak vacuum decay in metric-affine gravity

ID Gialamas, H Veermäe - Physics Letters B, 2023 - Elsevier
We investigate the stability of the electroweak vacuum in metric-affine gravity in which the
Standard Model Higgs boson can be non-minimally coupled to both the Ricci scalar and the …

False vacuum decay and nucleation dynamics in neutral atom systems

S Darbha, M Kornjača, F Liu, J Balewski… - Physical Review B, 2024 - APS
Metastable states of quantum many-body systems with confinement offer a means to
simulate false vacuum phenomenology, including nonequilibrium dynamical processes like …