David Figueruelo
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
David Figueruelo has a total of 51 co-authors. Here are the top co-authors by number of shared publications:
- Jose Beltrán Jiménez
Universidad de Salamanca
9 shared publications - Florencia Anabella Teppa Pannia
Departamento de Física Fundamental and IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain
6 shared publications - Dario Bettoni
Universidad de León
5 shared publications - Antonio L. Maroto
Departamento de Física Teórica and Instituto de Física de Partículas y del Cosmos (IPARCOS-UCM), Universidad Complutense de Madrid, 28040 Madrid, Spain
2 shared publications David Cristóbal-Hornillos
Centro de Estudios de Física del Cosmos de Aragón (CEFCA) Unidad Asociada al CSIC Plaza San Juan 1 E-44001 Teruel Spain
2 shared publicationsJavier Cenarro
Centro de Estudios de Física del Cosmos de Aragón (CEFCA) Unidad Asociada al CSIC Plaza San Juan 1 E-44001 Teruel Spain
2 shared publications
Latest Publications
- Open Access
- 10 March 2026
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 707, A269
Non-linear structure formation with elastic interactions in the dark sector
Cosmological models in which dark matter interacts with dark energy via pure momentum transfer and no energy exchange (i.e. elastic) provide compelling scenarios for addressing the apparent lack of structures at low redshift. In particular, it has been shown that measurements of S 8 show a statistically significant preference for such elastic interactions. In this work we implement a specific realisation of these scenarios in an N -body code to explore the non-linear regime. We include two populations of particles to describe interacting dark matter and non-interacting baryons, respectively. On linear scales we recover the structure suppression obtained from Boltzmann codes, while non-linear scales exhibit enhanced matter power. We find that fewer massive halos form at low redshift due to elastic interactions and that dark matter halos are more compact than in the standard model. Furthermore, the dark-matter-to-baryon density profile ratio is not constant. Finally, we corroborate that baryons efficiently cluster around dark matter halos and thus trace the dark matter velocity field well despite the interaction. This shows that the interaction is insufficiently strong to disrupt virialised structures.
- 10 March 2026
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 707, A269
Open AccessNon-linear structure formation with elastic interactions in the dark sector
Cosmological models in which dark matter interacts with dark energy via pure momentum transfer and no energy exchange (i.e. elastic) provide compelling scenarios for addressing the apparent lack of structures at low redshift. In particular, it has been shown that measurements of S 8 show a statistically significant preference for such elastic interactions. In this work we implement a specific realisation of these scenarios in an N -body code to explore the non-linear regime. We include two populations of particles to describe interacting dark matter and non-interacting baryons, respectively. On linear scales we recover the structure suppression obtained from Boltzmann codes, while non-linear scales exhibit enhanced matter power. We find that fewer massive halos form at low redshift due to elastic interactions and that dark matter halos are more compact than in the standard model. Furthermore, the dark-matter-to-baryon density profile ratio is not constant. Finally, we corroborate that baryons efficiently cluster around dark matter halos and thus trace the dark matter velocity field well despite the interaction. This shows that the interaction is insufficiently strong to disrupt virialised structures.
- Top Cited PapersOpen Access
- 7 February 2026
- Published by Elsevier in Physics of the Dark Universe
- Vol. 52
Late-time background constraints on linear and non-linear interacting dark energy after DESI DR2
- 7 February 2026
- Published by Elsevier in Physics of the Dark Universe
- Vol. 52
Top Cited PapersOpen AccessLate-time background constraints on linear and non-linear interacting dark energy after DESI DR2
- Open Access
- 27 September 2025
- Published by Elsevier in Physics of the Dark Universe
- Vol. 50
Compartmentalization in the dark sector of the universe after DESI DR2 BAO data
- 27 September 2025
- Published by Elsevier in Physics of the Dark Universe
- Vol. 50
Open AccessCompartmentalization in the dark sector of the universe after DESI DR2 BAO data
- 19 July 2024
- Published by American Physical Society (APS) in Physical Review D
- Vol. 110 (2) , 023527
Nondegeneracy of massive neutrinos and elastic interactions in the dark sector
Cosmological models featuring an elastic interaction in the dark sector have been shown to provide a promising scenario for alleviating the tension. A natural question for these scenarios is whether there could be a degeneracy between the interaction and massive neutrinos since they suppress structures in a similar manner. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations.- 19 July 2024
- Published by American Physical Society (APS) in Physical Review D
- Vol. 110 (2) , 023527
Nondegeneracy of massive neutrinos and elastic interactions in the dark sector
Cosmological models featuring an elastic interaction in the dark sector have been shown to provide a promising scenario for alleviating the tension. A natural question for these scenarios is whether there could be a degeneracy between the interaction and massive neutrinos since they suppress structures in a similar manner. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations.- Open Access
On the (non-)degeneracy of massive neutrinos and elastic interactions in the dark sector
Cosmological models featuring an elastic interaction in the dark sector at linear order has been shown to provide a promising scenario for alleviating the $σ_8$ tension. A natural question for these scenarios is whether there could be a degeneracy between the interaction and massive neutrinos that also contribute to erasing structures at late times. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations.Open AccessOn the (non-)degeneracy of massive neutrinos and elastic interactions in the dark sector
Cosmological models featuring an elastic interaction in the dark sector at linear order has been shown to provide a promising scenario for alleviating the $σ_8$ tension. A natural question for these scenarios is whether there could be a degeneracy between the interaction and massive neutrinos that also contribute to erasing structures at late times. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations. - Open Access
Some disquisitions on cosmological 2-form dualities
In this work we study different aspect of self-interacting 2-form fields with special emphasis in their cosmological applications. We provide the explicit construction of how massless 2-forms are compatible with the cosmological principle without resorting to the dual scalar field formulation. In terms of the 2-form, the residual Euclidean group is non-trivially realised by means of a combination of external spatial translations and internal gauge transformations. After presenting the general discussion of the dualities in cosmological scenarios, we analyse particular examples for some singular models and discuss in some detail the dual descriptions of the DBI, the cuscuton and the ghost condensate as well as the role of the duality in the effective field theories of cosmological perturbations. We then proceed to analysing scenarios with several self-interacting massless 2-forms and we show that they naturally provide the dual description of a solid. We then show how the perfect fluid and superfluids can be obtained by taking the appropriate limits in the dual formulations. We finally consider the case of massive 2-forms and their duals and briefly discuss their potential signatures in gravitational waves astronomy.
Open AccessSome disquisitions on cosmological 2-form dualities
In this work we study different aspect of self-interacting 2-form fields with special emphasis in their cosmological applications. We provide the explicit construction of how massless 2-forms are compatible with the cosmological principle without resorting to the dual scalar field formulation. In terms of the 2-form, the residual Euclidean group is non-trivially realised by means of a combination of external spatial translations and internal gauge transformations. After presenting the general discussion of the dualities in cosmological scenarios, we analyse particular examples for some singular models and discuss in some detail the dual descriptions of the DBI, the cuscuton and the ghost condensate as well as the role of the duality in the effective field theories of cosmological perturbations. We then proceed to analysing scenarios with several self-interacting massless 2-forms and we show that they naturally provide the dual description of a solid. We then show how the perfect fluid and superfluids can be obtained by taking the appropriate limits in the dual formulations. We finally consider the case of massive 2-forms and their duals and briefly discuss their potential signatures in gravitational waves astronomy.
- 1 April 2023
- Published by IOP Publishing in Journal of Cosmology and Astroparticle Physics
- Vol. 2023 (04) , 059
Some disquisitions on cosmological 2-form dualities
In this work we study different aspect of self-interacting 2-form fields with special emphasis in their cosmological applications. We provide the explicit construction of how massless 2-forms are compatible with the cosmological principle without resorting to the dual scalar field formulation. In terms of the 2-form, the residual Euclidean group is non-trivially realised by means of a combination of external spatial translations and internal gauge transformations. After presenting the general discussion of the dualities in cosmological scenarios, we analyse particular examples for some singular models and discuss in some detail the dual descriptions of the DBI, the cuscuton and the ghost condensate as well as the role of the duality in the effective field theories of cosmological perturbations. We then proceed to analysing scenarios with several self-interacting massless 2-forms and we show that they naturally provide the dual description of a solid. We then show how the perfect fluid and superfluids can be obtained by taking the appropriate limits in the dual formulations. We finally consider the case of massive 2-forms and their duals and briefly discuss their potential signatures in gravitational waves astronomy.
- 1 April 2023
- Published by IOP Publishing in Journal of Cosmology and Astroparticle Physics
- Vol. 2023 (04) , 059
Some disquisitions on cosmological 2-form dualities
In this work we study different aspect of self-interacting 2-form fields with special emphasis in their cosmological applications. We provide the explicit construction of how massless 2-forms are compatible with the cosmological principle without resorting to the dual scalar field formulation. In terms of the 2-form, the residual Euclidean group is non-trivially realised by means of a combination of external spatial translations and internal gauge transformations. After presenting the general discussion of the dualities in cosmological scenarios, we analyse particular examples for some singular models and discuss in some detail the dual descriptions of the DBI, the cuscuton and the ghost condensate as well as the role of the duality in the effective field theories of cosmological perturbations. We then proceed to analysing scenarios with several self-interacting massless 2-forms and we show that they naturally provide the dual description of a solid. We then show how the perfect fluid and superfluids can be obtained by taking the appropriate limits in the dual formulations. We finally consider the case of massive 2-forms and their duals and briefly discuss their potential signatures in gravitational waves astronomy.
- Open Access
Momentum transfer in the dark sector and lensing convergence in upcoming galaxy surveys
We investigated a cosmological model that allows a momentum transfer between dark matter and dark energy. The interaction in the dark sector mainly affects the behaviour of perturbations on small scales while the background evolution matches the $w$CDM solution. As a result of the momentum transfer, these kinds of models help alleviating the $\sigma_8$ discrepancy in the standard model, but do not resolve the so-called $H_0$ tension. We confirm that this is indeed the case by computing cosmological constraints. While our analysis tends to favour $\sigma_8$ values lower than in $\Lambda$CDM, we do not find evidence for a non-vanishing momentum transfer in the dark sector. Since upcoming galaxy surveys will deliver information on scales and red-shift relevant for testing models allowing momentum transfer in the dark sector, we also carried out forecasts using different survey configurations. We assessed the relevance of neglecting lensing convergence $\kappa$ when modelling the angular power spectrum of number counts fluctuations $C_\ell^{\rm ij}(z,z')$. We found that not including $\kappa$ in analyses leads to biased constraints ($\approx 1-5\,\sigma$) of cosmological parameters even when including information from other experiments. Incorrectly modelling $C_\ell^{\rm ij}(z,z')$ might lead to spurious detection of neutrino masses and exacerbate discrepancies in $H_0$ and $\sigma_8$.Open AccessMomentum transfer in the dark sector and lensing convergence in upcoming galaxy surveys
We investigated a cosmological model that allows a momentum transfer between dark matter and dark energy. The interaction in the dark sector mainly affects the behaviour of perturbations on small scales while the background evolution matches the $w$CDM solution. As a result of the momentum transfer, these kinds of models help alleviating the $\sigma_8$ discrepancy in the standard model, but do not resolve the so-called $H_0$ tension. We confirm that this is indeed the case by computing cosmological constraints. While our analysis tends to favour $\sigma_8$ values lower than in $\Lambda$CDM, we do not find evidence for a non-vanishing momentum transfer in the dark sector. Since upcoming galaxy surveys will deliver information on scales and red-shift relevant for testing models allowing momentum transfer in the dark sector, we also carried out forecasts using different survey configurations. We assessed the relevance of neglecting lensing convergence $\kappa$ when modelling the angular power spectrum of number counts fluctuations $C_\ell^{\rm ij}(z,z')$. We found that not including $\kappa$ in analyses leads to biased constraints ($\approx 1-5\,\sigma$) of cosmological parameters even when including information from other experiments. Incorrectly modelling $C_\ell^{\rm ij}(z,z')$ might lead to spurious detection of neutrino masses and exacerbate discrepancies in $H_0$ and $\sigma_8$. - 9 November 2021
- Published by American Physical Society (APS) in Physical Review D
- Vol. 104 (10) , 103503
Probing elastic interactions in the dark sector and the role ofWe place observational constraints on two models within a class of scenarios featuring an elastic interaction between dark energy and dark matter that only produces momentum exchange up to first order in cosmological perturbations. The first one corresponds to a perfect-fluid model of the dark components with an explicit interacting Lagrangian, where dark energy acts as a dark radiation at early times and behaves as a cosmological constant at late times. The second one is a dynamical dark energy model with a dark radiation component, where the momentum exchange covariantly modifies the conservation equations in the dark sector. Using cosmic microwave background (CMB), baryon acoustic oscillations (BAO), and supernovae type Ia (SnIa) data, we show that the Hubble tension can be alleviated due to the additional radiation, while the tension present in the -cold-dark-matter model can be eased by the weaker galaxy clustering that occurs in these interacting models. Furthermore, we show that, while data put only upper bounds on the coupling strength, adding low-redshift data in the form of a constraint on the parameter strongly favors nonvanishing values of the interaction parameters. Our findings are in line with other results in the literature that could signal a universal trend of the momentum exchange among the dark sector.- 9 November 2021
- Published by American Physical Society (APS) in Physical Review D
- Vol. 104 (10) , 103503
Probing elastic interactions in the dark sector and the role ofWe place observational constraints on two models within a class of scenarios featuring an elastic interaction between dark energy and dark matter that only produces momentum exchange up to first order in cosmological perturbations. The first one corresponds to a perfect-fluid model of the dark components with an explicit interacting Lagrangian, where dark energy acts as a dark radiation at early times and behaves as a cosmological constant at late times. The second one is a dynamical dark energy model with a dark radiation component, where the momentum exchange covariantly modifies the conservation equations in the dark sector. Using cosmic microwave background (CMB), baryon acoustic oscillations (BAO), and supernovae type Ia (SnIa) data, we show that the Hubble tension can be alleviated due to the additional radiation, while the tension present in the -cold-dark-matter model can be eased by the weaker galaxy clustering that occurs in these interacting models. Furthermore, we show that, while data put only upper bounds on the coupling strength, adding low-redshift data in the form of a constraint on the parameter strongly favors nonvanishing values of the interaction parameters. Our findings are in line with other results in the literature that could signal a universal trend of the momentum exchange among the dark sector.- Open Access
J-PAS: Forecasts for dark matter - dark energy elastic couplings
We consider a cosmological model where dark matter and dark energy feature a coupling that only affects their momentum transfer in the corresponding Euler equations. We perform a fit to cosmological observables and confirm previous findings within these scenarios that favour the presence of a coupling at more than $3\sigma$. This improvement is driven by the Sunyaev-Zeldovich data. We subsequently perform a forecast for future J-PAS data and find that clustering measurements will permit to clearly discern the presence of an interaction within a few percent level with the uncoupled case at more than $10\sigma$ when the complete survey, covering $8500$ sq. deg., is considered. We found that the inclusion of weak lensing measurements will not help to further constrain the coupling parameter. For completeness, we compare to forecasts for DESI and Euclid, which provide similar discriminating power.Open AccessJ-PAS: Forecasts for dark matter - dark energy elastic couplings
We consider a cosmological model where dark matter and dark energy feature a coupling that only affects their momentum transfer in the corresponding Euler equations. We perform a fit to cosmological observables and confirm previous findings within these scenarios that favour the presence of a coupling at more than $3\sigma$. This improvement is driven by the Sunyaev-Zeldovich data. We subsequently perform a forecast for future J-PAS data and find that clustering measurements will permit to clearly discern the presence of an interaction within a few percent level with the uncoupled case at more than $10\sigma$ when the complete survey, covering $8500$ sq. deg., is considered. We found that the inclusion of weak lensing measurements will not help to further constrain the coupling parameter. For completeness, we compare to forecasts for DESI and Euclid, which provide similar discriminating power.