Project description
Modelling and simulations to probe high-density matter of neutron star mergers
Gravitational waves from the merger of two neutron stars were observed by two LIGO detectors in 2017. Deeper theoretical knowledge of the fundamental physics of neutron star mergers is critical to interpreting the data from future observations. The EU-funded GWOHNS project plans to construct holographic models for the matter inside the stars and develop a novel tool for high-resolution simulations of neutron star mergers. For simulations, the project will use the gauge–gravity duality. Unlike conventional methods such as perturbation theory, lattice quantum chromodynamics and low-energy effective theories, the gauge–gravity duality provides a better framework for modelling subatomic matter at densities relevant for neutron stars. The project's work will pave the way for new predictions about neutron star merger dynamics and the detected gravitational waveforms.
Objective
The proposal aims at making substantial progress on the theoretical understanding of neutron stars (NSs) by constructing holographic models for the matter inside the stars and by developing a novel tool for high-resolution NS merger simulations.
The first observation of gravitational waves (GWs) from a NS merger in August 2017 by the LIGO observatory induced huge interest that goes far beyond the scientific expert community. Many more observations are expected in the near future and progress in the theoretical understanding of NS mergers is therefore sorely needed.
We propose an entirely new approach and construct equations of state (EoSs), using the gauge-gravity duality (“holography” for short), for the NS matter in merger simulations. Holography establishes an effective framework to model subatomic matter at densities relevant for NSs, where traditional methods like perturbation theory, lattice quantum chromodynamics (QCD), and low-energy effective theories are not applicable.
In that way we will generate predictions for the merger dynamics and the gravitational waveforms, which will lead to additional theoretical insights when confronted with future observations.
Applying holography to NS merger physics is a completely new concept and potentially opens a new field of holographic gravitational wave model building. The proposal has a strong multidisciplinary character as it combines aspects of string theory, high energy physics, astrophysics, nuclear physics, numerical relativity and high performance computing (HPC) and will therefore lead to interest and progress in all these fields.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences astronomy observational astronomy gravitational waves
- natural sciences physical sciences astronomy stellar astronomy neutron stars
- natural sciences physical sciences astronomy astrophysics
- natural sciences physical sciences theoretical physics string theory
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering computer hardware supercomputers
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2019
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
E1 4NS LONDON
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.