Double field theory with matter and its cosmological application
Copyright policy )Double field theory with matter and its cosmological application
The phase space formulation of Double Field Theory (DFT) indicates that statistical matter can be included in terms of (T-)duality multiplets. We propose the inclusion of a perfect fluid in the geometry of DFT through a generalized energy-momentum tensor written in terms of a DFT pressure, energy density and velocity. The latter is an $O(D,D)$ vector and satisfies two invariant constraints, in agreement with the on-shell constraints for the generalized momentum. We compute the conservation laws associated to the energy-momentum tensor considering general DFT backgrounds. Then we study cosmological backgrounds using a space-time split, and we find an expression for the DFT cosmological dynamics with the perfect fluid coupled. This proposal reproduces the equations of string cosmology upon parametrization of the DFT Einstein equations.
V2: 28 pages. Discussions and references added
- National Scientific and Technical Research Council Argentina
- Ruđer Bošković Institute Croatia
- University of Buenos Aires Argentina
- National University of La Plata Argentina
- Universidid De Buenos Aires Argentina
High Energy Physics - Theory, Nuclear and High Energy Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Tensor (intrinsic definition), Geometry, FOS: Physical sciences, Relationship between string theory and quantum field theory, General Relativity and Quantum Cosmology (gr-qc), Quantum mechanics, General Relativity and Quantum Cosmology, Quantum, String cosmology, https://purl.org/becyt/ford/1.3, Dilaton, FOS: Mathematics, SUPERGRAVITY, String theory, Radiative transfer, Cosmological Parameters and Dark Energy, Classical mechanics, https://purl.org/becyt/ford/1, Perfect fluid, Parametrization (atmospheric modeling), Galaxy Formation and Evolution in the Universe, Physics, Quantum gravity, Astronomy and Astrophysics, HIGHER DIMENSIONAL FIELD THEORIES, Discrete mathematics, STRING DUALITIES, Holographic Derivation of Field Theories and Gravity, Physics and Astronomy, High Energy Physics - Theory (hep-th), Mathematical physics, Duality (order theory), Physical Sciences, Cosmological Parameters, Theoretical physics, Mathematics, Astrophysics - Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory, Nuclear and High Energy Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Tensor (intrinsic definition), Geometry, FOS: Physical sciences, Relationship between string theory and quantum field theory, General Relativity and Quantum Cosmology (gr-qc), Quantum mechanics, General Relativity and Quantum Cosmology, Quantum, String cosmology, https://purl.org/becyt/ford/1.3, Dilaton, FOS: Mathematics, SUPERGRAVITY, String theory, Radiative transfer, Cosmological Parameters and Dark Energy, Classical mechanics, https://purl.org/becyt/ford/1, Perfect fluid, Parametrization (atmospheric modeling), Galaxy Formation and Evolution in the Universe, Physics, Quantum gravity, Astronomy and Astrophysics, HIGHER DIMENSIONAL FIELD THEORIES, Discrete mathematics, STRING DUALITIES, Holographic Derivation of Field Theories and Gravity, Physics and Astronomy, High Energy Physics - Theory (hep-th), Mathematical physics, Duality (order theory), Physical Sciences, Cosmological Parameters, Theoretical physics, Mathematics, Astrophysics - Cosmology and Nongalactic Astrophysics
selected citations These citations are derived from selected sources.This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).7 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
Citations provided by BIP!Popularity provided by BIP!