Non-Gaussianity from entanglement during inflation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00519718" target="_blank" >RIV/68378271:_____/19:00519718 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2019/07/021" target="_blank" >https://doi.org/10.1088/1475-7516/2019/07/021</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2019/07/021" target="_blank" >10.1088/1475-7516/2019/07/021</a>

Result language
angličtina
Original language name
Non-Gaussianity from entanglement during inflation
Original language description
We compute the bi-spectrum of CMB temperature fluctuations for a state where the metric perturbation ζ is entangled with a spectator scalar field χ. Novel terms in the cubic ζ action coupled to the scalar can be the dominant contribution to the bi-spectrum for such states and we highlight the differences between this result and the no-entanglement bispectrum. New shapes can be important in the bi-spectra leading to distinctive observational signatures.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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