International Journal of Geometric Methods in Modern Physics, ISSN 0219-8878, 02/2014, Volume 11, Issue 2

Journal Article

Physics Letters B, ISSN 0370-2693, 09/2015, Volume 748, Issue C, pp. 37 - 44

Bimetric theory describes gravitational interactions in the presence of an extra spin-2 field. Previous work has suggested that its cosmological solutions are...

Bimetric gravity | Massive gravity | Cosmic acceleration | Dark energy | Modified gravity | Background cosmology | Bigravity | FIELD-THEORY | ASTRONOMY & ASTROPHYSICS | PHYSICS, NUCLEAR | PHYSICS, PARTICLES & FIELDS | Astronomy, Astrophysics and Cosmology | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences

Bimetric gravity | Massive gravity | Cosmic acceleration | Dark energy | Modified gravity | Background cosmology | Bigravity | FIELD-THEORY | ASTRONOMY & ASTROPHYSICS | PHYSICS, NUCLEAR | PHYSICS, PARTICLES & FIELDS | Astronomy, Astrophysics and Cosmology | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences

Journal Article

International Journal of Modern Physics A, ISSN 0217-751X, 12/2018, Volume 33, Issue 34, p. 1845010

We know about Dark Matter (DM) only thanks to Gravity. I will review the idea that this must be the case because DM is nothing else than a manifestation of...

modified gravity | Dark matter | bigravity | PHYSICS, NUCLEAR | AXIONS | PHYSICS, PARTICLES & FIELDS

modified gravity | Dark matter | bigravity | PHYSICS, NUCLEAR | AXIONS | PHYSICS, PARTICLES & FIELDS

Journal Article

Physics letters B, ISSN 0370-2693, 02/2016, Volume 748, pp. 37 - 44

Bimetric theory describes gravitational interactions in the presence of an extra spin-2 field. Previous work has suggested that its cosmological solutions are...

Bimetric gravity | Massive gravity | Nuclear and High Energy Physics | High Energy Physics - Theory | Physics | General Relativity and Quantum Cosmology | Modified gravity; Massive gravity; Background cosmology; Cosmic acceleration; Dark energy; Bimetric gravity; Bigravity | Cosmic acceleration | Dark energy | Modified gravity | Background cosmology | Bigravity | Astrophysics - Cosmology and Nongalactic Astrophysics

Bimetric gravity | Massive gravity | Nuclear and High Energy Physics | High Energy Physics - Theory | Physics | General Relativity and Quantum Cosmology | Modified gravity; Massive gravity; Background cosmology; Cosmic acceleration; Dark energy; Bimetric gravity; Bigravity | Cosmic acceleration | Dark energy | Modified gravity | Background cosmology | Bigravity | Astrophysics - Cosmology and Nongalactic Astrophysics

Journal Article

Classical and Quantum Gravity, ISSN 0264-9381, 05/2015, Volume 32, Issue 10, pp. 105011 - 105034

We compute the one-loop quantum corrections to the interactions between the two metrics of the ghost-free massive bigravity. When considering gravitons running...

bigravity | coupling to matter | quantum corrections | massive gravity | QUANTUM SCIENCE & TECHNOLOGY | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | PHYSICS, PARTICLES & FIELDS | Phenomenology | Gravitation | Running in | Joining | Invariance | Quantum gravity | Gravitons | Fysik | Physical Sciences | Naturvetenskap | Natural Sciences

bigravity | coupling to matter | quantum corrections | massive gravity | QUANTUM SCIENCE & TECHNOLOGY | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | PHYSICS, PARTICLES & FIELDS | Phenomenology | Gravitation | Running in | Joining | Invariance | Quantum gravity | Gravitons | Fysik | Physical Sciences | Naturvetenskap | Natural Sciences

Journal Article

Classical and Quantum Gravity, ISSN 0264-9381, 07/2018, Volume 35, Issue 17, p. 175006

In this paper we investigate the possible supersymmetric extensions for the massive (bi)gravity theories in the lowest non-trivial order. For this purpose we...

bigravity | supergravity | massive gravity | QUANTUM SCIENCE & TECHNOLOGY | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | VERTICES | GAUGE-INVARIANT FORMULATION | PHYSICS, PARTICLES & FIELDS | Physics - High Energy Physics - Theory

bigravity | supergravity | massive gravity | QUANTUM SCIENCE & TECHNOLOGY | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | VERTICES | GAUGE-INVARIANT FORMULATION | PHYSICS, PARTICLES & FIELDS | Physics - High Energy Physics - Theory

Journal Article

7.
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Perturbations of cosmological and black hole solutions in massive gravity and bi-gravity

Progress of Theoretical and Experimental Physics, ISSN 2050-3911, 10/2016, Volume 2016, Issue 10, p. 103

We investigate perturbations of a class of spherically symmetric solutions in massive gravity and bi-gravity. The background equations of motion for the...

PHYSICS, MULTIDISCIPLINARY | BIGRAVITY | PHYSICS, PARTICLES & FIELDS

PHYSICS, MULTIDISCIPLINARY | BIGRAVITY | PHYSICS, PARTICLES & FIELDS

Journal Article

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, ISSN 0219-8878, 02/2014, Volume 11, Issue 2, pp. 1460006 - 1-1460006-24

We consider modified gravity which may describe the early-time inflation and/or late-time cosmic acceleration of the universe. In particular, we discuss the...

modified gravity | bigravity | Dark energy | PHYSICS, MATHEMATICAL | Reconstruction | Gravitation | Inflation | Mathematical analysis | Cosmology | Universe | Evolution

modified gravity | bigravity | Dark energy | PHYSICS, MATHEMATICAL | Reconstruction | Gravitation | Inflation | Mathematical analysis | Cosmology | Universe | Evolution

Journal Article

Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, 02/2015, Volume 2015, Issue 2, pp. 22 - 22

We investigate the cosmological perturbations around FLRW solutions to nonlinear massive gravity with a new effective coupling to matter proposed recently....

modified gravity | cosmological perturbation theory | gravity | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | CONSTANT | SUPERNOVAE | BORN-INFELD | UNIVERSE | PHYSICS, PARTICLES & FIELDS | General Relativity and Quantum Cosmology | Astrophysics | Cosmology and Extragalactic Astrophysics | Astrophysics and astroparticles | High Energy Physics - Theory | Gravitation and cosmology | Astrophysics - Cosmology and Nongalactic Astrophysics | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences | Astronomy, Astrophysics and Cosmology

modified gravity | cosmological perturbation theory | gravity | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | CONSTANT | SUPERNOVAE | BORN-INFELD | UNIVERSE | PHYSICS, PARTICLES & FIELDS | General Relativity and Quantum Cosmology | Astrophysics | Cosmology and Extragalactic Astrophysics | Astrophysics and astroparticles | High Energy Physics - Theory | Gravitation and cosmology | Astrophysics - Cosmology and Nongalactic Astrophysics | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences | Astronomy, Astrophysics and Cosmology

Journal Article

Classical and Quantum Gravity, ISSN 0264-9381, 01/2018, Volume 35, Issue 4, p. 45003

We study slowly-rotating neutron stars in ghost-free massive bigravity. This theory modifies general relativity by introducing a second, auxiliary but...

slowly-rotating neutron stars | massive bigravity | relativistic stars | bimetric gravity | MATTER | QUANTUM SCIENCE & TECHNOLOGY | EQUATION-OF-STATE | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | GRAVITY | PHYSICS, PARTICLES & FIELDS | Physics - General Relativity and Quantum Cosmology

slowly-rotating neutron stars | massive bigravity | relativistic stars | bimetric gravity | MATTER | QUANTUM SCIENCE & TECHNOLOGY | EQUATION-OF-STATE | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | GRAVITY | PHYSICS, PARTICLES & FIELDS | Physics - General Relativity and Quantum Cosmology

Journal Article

Physics Letters B, ISSN 0370-2693, 02/2013, Volume 719, Issue 1-3, pp. 14 - 17

In this Letter, we consider cosmological solutions of bimetric theory without assuming that only one metric is coupled to gravity. We conclude that any...

Bimetric gravity | Singularities | Cosmology | BIGRAVITY | PHYSICS, MULTIDISCIPLINARY | EXTENDED THEORIES | Gravity

Bimetric gravity | Singularities | Cosmology | BIGRAVITY | PHYSICS, MULTIDISCIPLINARY | EXTENDED THEORIES | Gravity

Journal Article

Physics Letters B, ISSN 0370-2693, 10/2016, Volume 761, Issue C, pp. 269 - 280

In a Friedmannâ€“Robertsonâ€“Walker (FRW) spaceâ€“time background we study the classical cosmological models in the context of recently proposed theory of nonlinear...

Schutz representation | Massive bigravity | Wheelerâ€“DeWitt equation | WAVE-PACKETS | CONSTANT | PHYSICS, NUCLEAR | Wheeler-DeWitt equation | FINITE-RANGE | INFLATION | PERFECT FLUID MODELS | ASTRONOMY & ASTROPHYSICS | GRAVITATION | TRANSITIONS | UNIVERSE | PHYSICS, PARTICLES & FIELDS | Physics - General Relativity and Quantum Cosmology | General Relativity and Quantum Cosmology | Astrophysics | Cosmology and Extragalactic Astrophysics | Nuclear and High Energy Physics | Physics

Schutz representation | Massive bigravity | Wheelerâ€“DeWitt equation | WAVE-PACKETS | CONSTANT | PHYSICS, NUCLEAR | Wheeler-DeWitt equation | FINITE-RANGE | INFLATION | PERFECT FLUID MODELS | ASTRONOMY & ASTROPHYSICS | GRAVITATION | TRANSITIONS | UNIVERSE | PHYSICS, PARTICLES & FIELDS | Physics - General Relativity and Quantum Cosmology | General Relativity and Quantum Cosmology | Astrophysics | Cosmology and Extragalactic Astrophysics | Nuclear and High Energy Physics | Physics

Journal Article

Classical and Quantum Gravity, ISSN 0264-9381, 03/2016, Volume 33, Issue 7, pp. 75004 - 75043

Recently there has been interest in extending ghost-free massive gravity, bi-gravity, and multi-gravity by including non-standard kinetic terms and matter...

modified gravity | effective field theory | massive gravity | INVARIANCE | PHYSICS, MULTIDISCIPLINARY | FIELD-THEORY | SPACES | METRICS | MASSLESS HIGHER SPINS | SITTER | (A)DS | ARBITRARY SPIN | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | PROPAGATION | PHYSICS, PARTICLES & FIELDS | Couplings | Ghosts | Gravitation | Decoupling | Uniqueness | Quantum gravity | Gain | Gravitons | Physics - High Energy Physics - Theory

modified gravity | effective field theory | massive gravity | INVARIANCE | PHYSICS, MULTIDISCIPLINARY | FIELD-THEORY | SPACES | METRICS | MASSLESS HIGHER SPINS | SITTER | (A)DS | ARBITRARY SPIN | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | PROPAGATION | PHYSICS, PARTICLES & FIELDS | Couplings | Ghosts | Gravitation | Decoupling | Uniqueness | Quantum gravity | Gain | Gravitons | Physics - High Energy Physics - Theory

Journal Article

Physics of the Dark Universe, ISSN 2212-6864, 12/2016, Volume 14, pp. 103 - 115

A complete classification of exact solutions of ghost-free, massive bigravity is derived which enables the dynamical decoupling of the background, and the...

Dark energy | Massive gravity | Non-linear theories of gravity | Bigravity | ASTRONOMY & ASTROPHYSICS

Dark energy | Massive gravity | Non-linear theories of gravity | Bigravity | ASTRONOMY & ASTROPHYSICS

Journal Article

Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, 01/2016, Volume 2016, Issue 1, pp. 3 - 3

We consider a linear effective vielbein matter coupling without introducing the Boulware-Deser ghost in ghost-free massive gravity. This is achieved in the...

modified gravity | cosmological perturbation theory | dark energy theory | gravity | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | PHYSICS, PARTICLES & FIELDS | MATHEMATICAL SOLUTIONS | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS | INSTABILITY | METRICS | PERTURBATION THEORY | GRAVITATION | GALACTIC EVOLUTION

modified gravity | cosmological perturbation theory | dark energy theory | gravity | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | PHYSICS, PARTICLES & FIELDS | MATHEMATICAL SOLUTIONS | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS | INSTABILITY | METRICS | PERTURBATION THEORY | GRAVITATION | GALACTIC EVOLUTION

Journal Article

Journal of High Energy Physics, ISSN 1126-6708, 07/2008, Volume 2008, Issue 7, pp. 130 - 130

A phase of massive gravity free from pathologies can be obtained by coupling the metric to an additional spin-two field. We study the gravitational field...

Black holes | Classical theories of gravity | Space-time symmetries | F-G THEORY | FIELDS | YANG-MILLS | classical theories of gravity | EQUATIONS | space-time symmetries | BIGRAVITY | black holes | PHYSICS, PARTICLES & FIELDS

Black holes | Classical theories of gravity | Space-time symmetries | F-G THEORY | FIELDS | YANG-MILLS | classical theories of gravity | EQUATIONS | space-time symmetries | BIGRAVITY | black holes | PHYSICS, PARTICLES & FIELDS

Journal Article

General Relativity and Gravitation, ISSN 0001-7701, 4/2018, Volume 50, Issue 4, pp. 1 - 29

In bigravity, when taking into account the potential existence of matter fields minimally coupled to the second gravitation sector, the dynamics of our...

Theoretical, Mathematical and Computational Physics | Cosmology | Quantum Physics | Noether symmetries | Differential Geometry | Classical and Quantum Gravitation, Relativity Theory | Physics | Astronomy, Astrophysics and Cosmology | Bigravity | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | GRAVITY | PHYSICS, PARTICLES & FIELDS | Analysis | Gravity

Theoretical, Mathematical and Computational Physics | Cosmology | Quantum Physics | Noether symmetries | Differential Geometry | Classical and Quantum Gravitation, Relativity Theory | Physics | Astronomy, Astrophysics and Cosmology | Bigravity | PHYSICS, MULTIDISCIPLINARY | ASTRONOMY & ASTROPHYSICS | GRAVITY | PHYSICS, PARTICLES & FIELDS | Analysis | Gravity

Journal Article

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Evolution of the equations of dynamics of the Universe: From Friedmann to the present day

Theoretical and Mathematical Physics(Russian Federation), ISSN 0040-5779, 05/2017, Volume 191, Issue 2, pp. 674 - 681

Celebrating the centenary of general relativity theory, we must recall that Friedmann's discovery of the equations of evolution of the Universe became the...

bigravity | cosmology | gravitational theory | bimetric gravity | massive gravity | Hamiltonian formalism | PHYSICS, MULTIDISCIPLINARY | GRAVITATION | PHYSICS, MATHEMATICAL | Gravity

bigravity | cosmology | gravitational theory | bimetric gravity | massive gravity | Hamiltonian formalism | PHYSICS, MULTIDISCIPLINARY | GRAVITATION | PHYSICS, MATHEMATICAL | Gravity

Journal Article

Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, 11/2015, Volume 2015, Issue 11, pp. 5 - 5

In the context of massive gravity, bi-gravity and multi-gravity non-minimal matter couplings via a speci fi c composite e ff ective metric were investigated...

modified gravity | dark energy theory | gravity | MASSIVE GRAVITY | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | PHYSICS, PARTICLES & FIELDS | General Relativity and Quantum Cosmology | High Energy Physics | Theory | High Energy Physics - Theory | Astrophysics - Cosmology and Nongalactic Astrophysics | CORRECTIONS | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS | HELICITY | COSMOLOGY | EQUATIONS OF MOTION | METRICS | GRAVITATION | COUPLINGS | DECOUPLING | INTERACTIONS | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences | Astronomy, Astrophysics and Cosmology

modified gravity | dark energy theory | gravity | MASSIVE GRAVITY | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | PHYSICS, PARTICLES & FIELDS | General Relativity and Quantum Cosmology | High Energy Physics | Theory | High Energy Physics - Theory | Astrophysics - Cosmology and Nongalactic Astrophysics | CORRECTIONS | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS | HELICITY | COSMOLOGY | EQUATIONS OF MOTION | METRICS | GRAVITATION | COUPLINGS | DECOUPLING | INTERACTIONS | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences | Astronomy, Astrophysics and Cosmology

Journal Article

Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, 09/2015, Volume 2015, Issue 9, pp. 43 - 43

In this paper we study the generation of primordial perturbations in a cosmological setting of bigravity during inflation. We consider a model of bigravity...

ination | modified gravity | cosmological perturbation theory | primordial gravitational waves (theory) | FIELD-THEORY | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | inflation | PHYSICS, PARTICLES & FIELDS | DISTURBANCES | INSTABILITY | COSMOLOGICAL CONSTANT | GALACTIC EVOLUTION | POTENTIALS | ENERGY DENSITY | INFLATIONARY UNIVERSE | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | SCALAR FIELDS | SCALARS | COSMOLOGICAL INFLATION | GRAVITATION | AMPLITUDES | VECTORS

ination | modified gravity | cosmological perturbation theory | primordial gravitational waves (theory) | FIELD-THEORY | ASTRONOMY & ASTROPHYSICS | BIGRAVITY | inflation | PHYSICS, PARTICLES & FIELDS | DISTURBANCES | INSTABILITY | COSMOLOGICAL CONSTANT | GALACTIC EVOLUTION | POTENTIALS | ENERGY DENSITY | INFLATIONARY UNIVERSE | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | SCALAR FIELDS | SCALARS | COSMOLOGICAL INFLATION | GRAVITATION | AMPLITUDES | VECTORS

Journal Article