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Strong Gravity and High-Energy Physics

Objective

This project explores strong-gravity phenomena involving black holes in the context of high-energy physics applications and astrophysical observations including gravitational waves. The proposed studies can be loosely classified into four groups with considerable overlap.

(i) Fundamental fields in strong gravity.
Fundamental fields coupled to curvature are essential for cosmological models, for explaining the nature of dark matter or to extend the Standard Model of particle physics. In addition, scalar fields are often used as proxy for other, more complex interactions. Through numerical, perturbative and analytical modeling, we will explore the dynamics and wave emission of neutron stars and black holes in dark-matter environments and infer bounds on axion-like particles.

(ii) Stability of black holes.
The physical stability of black-hole solutions with or without the presence of fundamental matter fields will be studied. Such solutions represent possible end states of the dynamical processes and their importance critically relies on whether they form long-term stable spacetimes.

(iii) Modified theories of gravity.
Modifications and extensions of general relativity are being explored for a variety of reasons ranging from cosmological observations to attempts to unify general relativity with quantum mechanics. We will explore observable effects of various such theories in astrophysical systems with a particular focus on gravitational-wave and electromagnetic signatures, that could allow us to test general relativity against modified theories of gravity.

(iv) High-energy collisions.
The gravitational interaction of ultrarelativistic collisions will be modeled numerically and perturbatively to probe the possibility of black-hole formation in the framework of TeV gravity scenarios.

Coordinator

THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
Net EU contribution
€ 72 000,00
Address
Trinity Lane The Old Schools
CB2 1TN Cambridge
United Kingdom

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Region
East of England East Anglia Cambridgeshire CC
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00

Participants (4)

UNIVERSIDADE DE AVEIRO
Portugal
Net EU contribution
€ 45 000,00
Address
Campus Universitário De Santiago
3810-193 Aveiro

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Region
Continente Centro (PT) Região de Aveiro
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
INSTITUTO SUPERIOR TECNICO
Portugal
Net EU contribution
€ 108 000,00
Address
Avenida Rovisco Pais 1
1049 001 Lisboa

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Region
Continente Área Metropolitana de Lisboa Área Metropolitana de Lisboa
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
UNIVERSITA DEGLI STUDI DI ROMA LA SAPIENZA
Italy
Net EU contribution
€ 27 000,00
Address
Piazzale Aldo Moro 5
00185 Roma

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Region
Centro (IT) Lazio Roma
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France
Net EU contribution
€ 36 000,00
Address
Rue Michel Ange 3
75794 Paris

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Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
Non-EU contribution
€ 0,00

Partners (4)

Partner

Partner organisations contribute to the implementation of the action, but do not sign the Grant Agreement.

THE UNIVERSITY OF MISSISSIPPI
United States
Net EU contribution
€ 0,00
Address
Barr Hall 100
38677 University Ms

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Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
Partner

Partner organisations contribute to the implementation of the action, but do not sign the Grant Agreement.

PERIMETER INSTITUTE
Canada
Net EU contribution
€ 0,00
Address
Caroline Street North 31
N2L 2Y5 Waterloo On

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Activity type
Research Organisations
Non-EU contribution
€ 0,00
Partner

Partner organisations contribute to the implementation of the action, but do not sign the Grant Agreement.

KINKI UNIVERSITY
Japan
Net EU contribution
€ 0,00
Address
3-4-1 Kowakae Higashiosaka
577 8502 Osaka

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Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00
Partner

Partner organisations contribute to the implementation of the action, but do not sign the Grant Agreement.

JOHNS HOPKINS UNIVERSITY
United States
Net EU contribution
€ 0,00
Address
North Charles Street 3400
21218 Baltimore

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Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00