Flat-top oscillons in an expanding universe
Why is this work in the frame?
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.
The three-model screen
all 1,000 screened works →All three models called this out of scope.
Theoretical cosmology of oscillon field configurations.
It studies cosmological field configurations, not research itself.
Theoretical cosmology of oscillon field configurations in an expanding universe; pure physics.
Abstract
Oscillons are extremely long lived, oscillatory, spatially localized field configurations that arise from generic initial conditions in a large number of nonlinear field theories. With an eye towards their cosmological implications, we investigate their properties in an expanding universe. We (1) provide an analytic solution for one-dimensional oscillons (for the models under consideration) and discuss their generalization to three dimensions, (2) discuss their stability against long wavelength perturbations, and (3) estimate the effects of expansion on their shapes and lifetimes. In particular, we discuss a new, extended class of oscillons with surprisingly flat tops. We show that these flat-topped oscillons are more robust against collapse instabilities in ($3+1$) dimensions than their usual counterparts. Unlike the solutions found in the small amplitude analysis, the width of these configurations is a nonmonotonic function of their amplitudes.
Stored with the screening record, where it is evidence for the labels above.
The record
- Venue
- Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology
- Topic
- Cosmology and Gravitation Theories
- Field
- Physics and Astronomy
- Canadian institutions
- —
- Funders
- Natural Sciences and Engineering Research Council of Canada
- Keywords
- PhysicsAmplitudeGeneralizationUniverseField (mathematics)Metric expansion of spaceTheoretical physicsNonlinear systemStability (learning theory)Classical mechanicsClass (philosophy)Function (biology)Mathematical analysisCosmologyPure mathematicsAstrophysicsMathematicsQuantum mechanicsComputer scienceDark energyArtificial intelligence
- Has abstract in OpenAlex
- yes