REVIEW 6 cited by
TASI Lectures on Remnants from the String Landscape
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
Superstring theories are very promising theoretically, but the enormous landscape of string vacua and the (likely) very large underlying string scale imply that they may never be tested directly. Nevertheless, concrete constructions consistent with the observed world frequently lead to observable remnants, i.e., new particles or features that are apparently accidental consequences of the ultraviolet theory and that are typically not motivated by specific shortcomings of the standard models of particle physics or cosmology. For example, moduli, axions, large extended gauge sectors, additional $Z'$ gauge bosons, extended Higgs/Higgsino sectors, and quasi-chiral exotics are extremely common. They motivate alternative cosmological paradigms and could lead to observable signatures at the LHC. Similar features can emerge in other standard model extensions, but in the stringy case they are more likely to occur in isolation and not as part of a more complete TeV-scale structure. Conversely, some common aspects of the infinite "landscape" of field theories, such as large representations, are expected to be very rare in the string landscape, and observation of features definitively in the swampland could lead to falsification. In this article, common stringy remnants and their phenomenology are surveyed, and implications for indirectly supporting or casting doubt on string theory are discussed.
Forward citations
Cited by 6 Pith papers
-
Dark Monopoles, Bounds on Hidden Sectors, and Cosmological Implications
Hidden-sector magnetic monopoles with symmetry-breaking scales above roughly 100 PeV over-close the Universe unless diluted by inflation or an early matter-dominated phase.
-
Notes on anomalies, elliptic curves and the BS-D conjecture
For a compact U(1) extension with SU(2) triplets, anomaly cancellation gives one nontrivial hypercharge assignment for N=3, two for N=9, and infinitely many for all other N.
-
Cosmological Constant Suppression in Non-Stationary Scalar Covariant State
The vacuum energy density is claimed to be ρ = (1/8) m Λ^3 e^{-<n>}, matching the observed cosmological constant when <n> ≈ 250 and m ≈ Λ ≈ 10^16 GeV.
-
Scalar Field Action under 4D Isotropic Cut-off and its Cosmological Impact
A scalar field with a 4D isotropic cutoff reduces to a 1D harmonic oscillator with vacuum energy (1/8)mΛ³, which the authors link to the observed dark energy scale via an exponential suppression factor.
-
Lectures on Naturalness, String Landscape and Multiverse
Lecture notes providing a technical introduction to naturalness problems and the string theory landscape for graduate students.
-
Lattice methods for students at a formal TASI
Lecture notes on lattice methods for formal TASI students covering basics, confinement, chiral fermions, and case studies in the 3D Ising model and QCD.
Discussion (0). Continue with ORCID to comment.