130 citations · 749 across the 21 of their papers we have counts for
22 papers
Calculating Axion-Matter Couplings in String Theory
Joshua N. Benabou, Naomi Gendler, Thomas R. Harvey +1
In this work we calculate, for the first time, the dominant perturbative contributions to axion--matter couplings explicitly in string theory. Concretely, we compute these coupling…
Muon decay across scales: from LEFT to SMEFT
Jakob Moritz, Carl Jakob Moritz, Tyler Corbett
We revisit precision muon decay in the framework of the LEFT by considering how the LEFT perturbs the total rate as well as the standard and polarization-dependent Michel parameter…
Calabi-Yau Orientifold Hypersurfaces and their F-theory Uplifts
Bjoern Hassfeld, Jakob Moritz
We present an algorithm that constructs Calabi-Yau threefold orientifolds and their -theory uplifts to elliptically-fibered Calabi-Yau fourfolds, embedded in toric varieties at…
-manifolds from Diophantine equations
Jakob Moritz
We argue that perturbatively flat vacua (PFVs) introduced in \cite{Demirtas:2019sip} are dual to M-theory compactifications on -manifolds, enabling the enumeration of potentia…
Counting Calabi-Yau Threefolds
Naomi Gendler, Nate MacFadden, Liam McAllister +4
We enumerate topologically-inequivalent compact Calabi-Yau threefold hypersurfaces. By computing arithmetic and algebraic invariants and the Gopakumar-Vafa invariants of curves, we…
Glimmers from the Axiverse
Naomi Gendler, David J. E. Marsh, Liam McAllister +1
We study axion-photon couplings in compactifications of type IIB string theory. We find that these couplings are systematically suppressed compared to the inverse axion periodicity…
Computational Mirror Symmetry
Mehmet Demirtas, Manki Kim, Liam McAllister +2
We present an efficient algorithm for computing the prepotential in compactifications of type II string theory on mirror pairs of Calabi-Yau threefolds in toric varieties. Applying…
Moduli Space Reconstruction and Weak Gravity
Naomi Gendler, Ben Heidenreich, Liam McAllister +2
We present a method to construct the extended Kähler cone of any Calabi-Yau threefold by using Gopakumar-Vafa invariants to identify all geometric phases that are related by flops…
Superpotentials from Singular Divisors
Naomi Gendler, Manki Kim, Liam McAllister +2
We study Euclidean D3-branes wrapping divisors in Calabi-Yau orientifold compactifications of type IIB string theory. Witten's counting of fermion zero modes in terms of the co…
PQ Axiverse
Mehmet Demirtas, Naomi Gendler, Cody Long +2
We show that the strong CP problem is solved in a large class of compactifications of string theory. The Peccei-Quinn mechanism solves the strong CP problem if the CP-breaking effe…
A Cosmological Constant That is Too Small
Mehmet Demirtas, Manki Kim, Liam McAllister +2
We construct a vacuum of string theory in which the magnitude of the vacuum energy is in Planck units. Regrettably, the sign of the vacuum energy is negative, and som…
Small Cosmological Constants in String Theory
Mehmet Demirtas, Manki Kim, Liam McAllister +2
We construct supersymmetric vacua of type IIB string theory in compactifications on orientifolds of Calabi-Yau threefold hypersurfaces. We first find explicit orie…
Resolving spacetime singularities in flux compactifications & KKLT
Federico Carta, Jakob Moritz
In flux compactifications of type IIB string theory with D3 and seven-branes, the negative induced D3 charge localized on seven-branes leads to an apparently pathological profile o…
Conifold Vacua with Small Flux Superpotential
Mehmet Demirtas, Manki Kim, Liam McAllister +1
We introduce a method for finding flux vacua of type IIB string theory in which the flux superpotential is exponentially small and at the same time one or more complex structure mo…
A landscape of orientifold vacua
Federico Carta, Jakob Moritz, Alexander Westphal
We present a vast landscape of O3/O7 orientifolds that descends from the famous set of complete intersection Calabi-Yau threefolds (CICY). We give distributions of topological data…
Vacua with Small Flux Superpotential
Mehmet Demirtas, Manki Kim, Liam McAllister +1
We describe a method for finding flux vacua of type IIB string theory in which the Gukov-Vafa-Witten superpotential is exponentially small. We present an example with $W_0 \approx…
Gaugino condensation and small uplifts in KKLT
Federico Carta, Jakob Moritz, Alexander Westphal
In the first part of this note we argue that ten dimensional consistency requirements in the form of a certain tadpole cancellation condition can be satisfied by KKLT type vacua of…
Thraxions: Ultralight Throat Axions
Arthur Hebecker, Sascha Leonhardt, Jakob Moritz +1
We argue that a new type of extremely light axion is generically present in the type IIB part of the string theory landscape. Its mass is suppressed by the third power of the warp…
On uplifts by warped anti-D3-branes
Jakob Moritz, Ander Retolaza, Alexander Westphal
In this note we outline the arguments against the ten-dimensional consistency of the simplest types of KKLT de Sitter vacua, as given in arXiv:1707.08678. We comment on parametriza…
Racing through the swampland: de Sitter uplift vs weak gravity
Jakob Moritz, Thomas Van Riet
We observe that racetrack models for moduli stabilization are in tension with strong forms of the Weak Gravity Conjecture (WGC). Moreover, recently, it was noted that controlled KK…
Towards de Sitter from 10D
Jakob Moritz, Ander Retolaza, Alexander Westphal
Using a 10D lift of non-perturbative volume stabilization in type IIB string theory we study the limitations for obtaining de Sitter vacua. Based on this we find that the simplest…
Towards Axion Monodromy Inflation with Warped KK-Modes
Arthur Hebecker, Jakob Moritz, Alexander Westphal +1
We present a particularly simple model of axion monodromy: Our axion is the lowest-lying KK-mode of the RR-2-form-potential in the standard Klebanov-Strassler throat. One can…