Bumping into the Species Scale with the Scalar Potential

Andriot, David

doi:10.1002/prop.202300139

Cited by 6 publications

(1 citation statement)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An alternative, but related definition sets Λ sp as the scale at which higher-derivative operators in the gravitational EFT become relevant. The species scale and its moduli dependence have been recently subject of intense investigations [11,[19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Jhep06(2024)127mentioning

confidence: 99%

Minimal black holes and species thermodynamics

Basile,

Cribiori,

Lüst

et al. 2024

J. High Energ. Phys.

View full text Add to dashboard Cite

The species scale provides a lower bound on the shortest possible length that can be probed in gravitational effective theories. It may be defined by the size of the minimal black hole in the theory and, as such, it has recently been given an interpretation along the lines of the celebrated black hole thermodynamics. In this work, we extend this interpretation to the case of charged species. We provide working definitions of minimal black holes for the case of uncharged and charged species constituents. Then, examining the modifications in the thermodynamic properties of near-extremal charged species compared to the uncharged case, we uncover interesting implications for the cosmology of an expanding universe, particularly within the context of the Dark Dimensions Scenario. Finally, we explore possible microscopic constructions in non-supersymmetric string theories in which towers of charged near-extremal species may arise.

show abstract

Section: Jhep06(2024)127mentioning

confidence: 99%

Minimal black holes and species thermodynamics

Basile,

Cribiori,

Lüst

et al. 2024

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

Species Scale and Primordial Gravitational Waves

Scalisi

2024

Fortschritte der Physik

View full text Add to dashboard Cite

The species scale is a field‐dependent UV cut‐off for any effective field theory weakly coupled to gravity. In this letter, it is shown that in the context of inflationary cosmology, a detection of primordial gravitational waves will set an upper bound on the decay rate of the species scale. Specifically, this is derived in terms of the tensor‐to‐scalar ratio of power spectra of primordial perturbations. Given the targets of current and next generation experiments, it is shown that any successful detection would signify that this upper limit is of the order of unity, which is consistent with recent discussions in the literature.

show abstract

Emergence of species scale black hole horizons

Calderón-Infante,

Delgado,

Uranga

2024

J. High Energ. Phys.

View full text Add to dashboard Cite

The scale at which quantum gravity becomes manifest, the species scale Λs, has recently been argued to take values parametrically lower than the Planck scale. We use black holes of vanishing horizon area (small black holes) in effective field theories coupled to quantum gravity to shed light on how the three different physical manifestations of the species scale Λs relate to each other. (i) Near the small black hole core, a scalar field runs to infinite distance in moduli space, a regime in which the Swampland Distance Conjecture predicts a tower of exponentially light states, which lower Λs. (ii) We integrate out modes in the tower and generate via Emergence a set of higher derivative corrections, showing that Λs is the scale at which such terms become relevant. (iii) Finally, higher derivative terms modify the black hole solution and grant it a non-zero, species scale sized stretched horizon of radius $$ {\Lambda}_s^{-1} $$ Λ s − 1 , showcasing the species scale as the size of the smallest possible black hole describable in the effective theory.We present explicit 4d examples of small black holes in 4d $$ \mathcal{N} $$ N = 2 supergravity, and the 10d example of type IIA D0-branes. The emergence of the species scale horizon for D0-branes requires a non-trivial interplay of different 8-derivative terms in type IIA and M-theory, providing a highly non-trivial check of our unified description of the different phenomena associated to the species scale.

show abstract

Bumping into the Species Scale with the Scalar Potential

Cited by 6 publications

References 43 publications

Minimal black holes and species thermodynamics

Minimal black holes and species thermodynamics

Species Scale and Primordial Gravitational Waves

Emergence of species scale black hole horizons

Contact Info

Product

Resources

About