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NOTIMEFORCOSMO

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No time for cosmology: Decoding dynamics from static cosmological correlations

"The beginnings of the universe are encoded in the statistical properties of primordial perturbations imprinted at the hot Big Bang. Our understanding of primordial cosmology comes from measurements of these imprinted spatial corr... see more

31/08/2029

SNS

2M€

Project Budget: 2M€

Project leader

SCUOLA NORMALE SUPERIORE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

PARTICIPATION DEPralty Sin fecha límite de participación.

Financing granted El organismo HORIZON EUROPE notifico la concesión del proyecto The day 2023-12-07

ERC-2023-COG: ERC CONSOLIDATOR GRANTS Scope:Objectives

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1 Participantes

SNS

1.61M€ | Leader

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Project duration: 68 months Date Start: 2023-12-07
End date: 2029-08-31

Project leader

SCUOLA NORMALE SUPERIORE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Project Budget 2M€

participation deadline Sin fecha límite de participación.

Project description "The beginnings of the universe are encoded in the statistical properties of primordial perturbations imprinted at the hot Big Bang. Our understanding of primordial cosmology comes from measurements of these imprinted spatial correlations. They form a static pattern, and its apparent lack of causality is elegantly explained by an earlier period of time evolution. This time evolution from very primordial eras of the universe can not be observed directly. For conceptual and practical purposes, a reformulation of cosmological perturbation theory in which time is emergent is of fundamental importance. We hypothesize that there is an intrinsic description of primordial fluctuations that only uses their statistical properties and in which time emerges. Our approach has three steps. First, we propose a systematic development of the theory of ""boundary differential equations"" for cosmological correlation functions, and the development of new kinematical variables for cosmological correlators. With these tools in hand, we will calculate a large set of ``theoretical data"": cosmological correlations of many different particles, coming from a variety of early universe scenarios. With this data in hand, we will search for new principles from which time evolution emerges from the static distribution of cosmological perturbations. Having a reformulation of cosmological evolution with emergent time, a glimpse into the possible beginning of our universe might become accessible, as well as its imprint in cosmological correlations."

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