BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Adrià Delhom (UV) DTSTART;VALUE=DATE-TIME:20201215T115500Z DTEND;VALUE=DATE-TIME:20201215T122500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13982@indico.ific.uv.es DESCRIPTION:title: Ghosts in metric-affine higher order curvature gravity\ n\nabstract: We disprove the widespread belief that higher order curvature theories of gravity in the metric-affine formalism are generally ghost-fr ee. This is clarified by considering a sub-class of theories constructed o nly with the Ricci tensor and showing that the non-projectively invariant sector propagates ghost-like degrees of freedom. We also explain how these pathologies can be avoided either by imposing a projective symmetry or ad ditional constraints in the gravity sector. Our results put forward that h igher order curvature gravity theories generally remain pathological in th e metric-affine (and hybrid) formalisms and highlight the key importance o f the projective symmetry and/or additional constraints for their physical viability and\, by extension\, of general metric-affine theories.\n\nhttp s://indico.ific.uv.es/event/6045/contributions/13982/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13982/ END:VEVENT BEGIN:VEVENT SUMMARY:Adrià Delhom(UV\, Valencia) DTSTART;VALUE=DATE-TIME:20201214T102000Z DTEND;VALUE=DATE-TIME:20201214T105000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13939@indico.ific.uv.es DESCRIPTION:title: Inconsistencies in four-dimensional Einstein-Gauss-Bonn et gravity\n\nabstract:We will outline several inconsistencies about the r ecently proposed four-dimensional Einstein-Gauss-Bonnet theory.\n\nhttps:/ /indico.ific.uv.es/event/6045/contributions/13939/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13939/ END:VEVENT BEGIN:VEVENT SUMMARY:Albert Petrov (UFPB\, João Pessoa) DTSTART;VALUE=DATE-TIME:20201217T120000Z DTEND;VALUE=DATE-TIME:20201217T123000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13980@indico.ific.uv.es DESCRIPTION:Metric-affine bumblebee gravity: quantum aspects\, based on ht tps://arxiv.org/abs/2010.06391\n\nhttps://indico.ific.uv.es/event/6045/con tributions/13980/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13980/ END:VEVENT BEGIN:VEVENT SUMMARY:Andreu Masó (UV\, València) DTSTART;VALUE=DATE-TIME:20201216T172000Z DTEND;VALUE=DATE-TIME:20201216T175000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13974@indico.ific.uv.es DESCRIPTION:Boson Stars in Palatini f(R) gravity\n\nhttps://indico.ific.uv .es/event/6045/contributions/13974/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13974/ END:VEVENT BEGIN:VEVENT SUMMARY:Fabrizio Di Giovanni (UV\, Valencia) DTSTART;VALUE=DATE-TIME:20201214T114000Z DTEND;VALUE=DATE-TIME:20201214T121000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13973@indico.ific.uv.es DESCRIPTION:On the dynamical bar-mode instability of spinning bosonic star s\n\nAbstract:We report results from three-dimensional numerical-relativit y simulations of spinning bosonic stars\, both considering a scalar field or a vector (Proca) field. In both cases\, the bosonic field is assumed co mplex and massive. The scalar star is always affected by the growth of a n on-axisymmetric instability which triggers the loss of angular momentum an d its migration to a non-spinning boson star. For $m=1$ Proca stars\, how ever\, no such instability was observed. We tentatively related the differ ent stability properties to the different toroidal/spheroidal topology of the scalar/Proca models. we qualitatively study the instability of SBSs th rough the analysis of the growth rate of azimuthal density modes and the s earch of a corotation point in the unstable models. This allows us to put forward a parallelism with rotating neutron stars affected by dynamical ba r-mode instabilities. We compute the gravitational wave emission through t he mode decomposition of the Newman-Penrose scalar. We compute the charact eristic GW strain for some of our models and we compare it with the sensit ivity curves of ground-based detectors\, space detectors and PTAs. For the ranges of masses in the sensitivity range of each detector we compute the SNR and we evaluate the horizon distance\, as the distance at which the S NR is equal to a certain threshold value.\n\nhttps://indico.ific.uv.es/eve nt/6045/contributions/13973/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13973/ END:VEVENT BEGIN:VEVENT SUMMARY:J. Fernando Barbero G. (IEM\, Madrid) DTSTART;VALUE=DATE-TIME:20201217T165000Z DTEND;VALUE=DATE-TIME:20201217T175000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13972@indico.ific.uv.es DESCRIPTION:A concise symplectic formulation for tetrad gravity.\n\nAbstra ct: I will discuss a simple symplectic formulation for tetrad gravity th at leads to the real Ashtekar variables in a direct and \ntransparent way . It also sheds light on the role of the Immirzi \nparameter and the time gauge.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13972/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13972/ END:VEVENT BEGIN:VEVENT SUMMARY:Param Singh (LSU\, USA) DTSTART;VALUE=DATE-TIME:20201217T154500Z DTEND;VALUE=DATE-TIME:20201217T164500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13971@indico.ific.uv.es DESCRIPTION:Starting low energy scale inflation in closed universes.Title: Onset of Starobinsky inflation in spatially closed FLRW model\n\nAbstract : Recent CMB data favors a spatially closed FLRW model and low energy infl ation such as sourced by the Starobinsky potential. An age old problem wit h the latter models is that they result in a recollapse of the universe an d a big crunch singularity before inflation can even set in. To resolve t his problem it is essential to work with a framework which is non-singular . We explore the resolution of this problem in loop quantum cosmology wher e results in the last decade suggest a generic resolution of singularity. We show that quantum gravity effects result in an onset of inflation even for those initial conditions where it is classically impossible. Interesti ngly\, a key role is played by a hysteresis-like phenomena in the early un iverse resulting from non-singular dynamics\n\nhttps://indico.ific.uv.es/e vent/6045/contributions/13971/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13971/ END:VEVENT BEGIN:VEVENT SUMMARY:Flavio Bombacigno (UV\, Valencia) DTSTART;VALUE=DATE-TIME:20201217T145000Z DTEND;VALUE=DATE-TIME:20201217T153500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13970@indico.ific.uv.es DESCRIPTION:Gravitational Landau damping for massive scalar modes.\n\nAbst ract: We establish the possibility of Landau damping for gravitational sca lar waves which propagate in a non-collisional gas of particles. In partic ular\, under the hypothesis of homogeneity and isotropy\, we describe the medium at the equilibrium with a J\\"uttner-Maxwell distribution\, and we analytically determine the damping rate from the Vlasov equation. We find that damping occurs only if the phase velocity of the wave is subluminal t hroughout the propagation within the medium. Finally\, we investigate rela tivistic media in cosmological settings by adopting numerical techniques.\ n\nhttps://indico.ific.uv.es/event/6045/contributions/13970/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13970/ END:VEVENT BEGIN:VEVENT SUMMARY:Juan Margalef (UC3M/PennState) DTSTART;VALUE=DATE-TIME:20201217T140000Z DTEND;VALUE=DATE-TIME:20201217T144500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13969@indico.ific.uv.es DESCRIPTION:The geometric formulation of the covariant Phase Space with bo undaries.\n\nAbstract: In this talk\, I will introduce the relative bicomp lex framework\, a new formalism which is the natural one to deal with the covariant phase space of theories with boundaries. I will show that it pro vides a formal equivalence between the relative version of a theory with b oundary and the non-relative version of the same theory with no boundary. With these tools at hand\, we can build over the space of solutions a (pre )symplectic structure canonically associated with the action. I will provi de a brief summary of other geometric objects that can be derived\, such a s symmetries\, Noether currents\, and charges. Likewise\, I will character ize the arbitrariness of these constructions which has been a matter of co nfusion in the past.\n\nhttps://indico.ific.uv.es/event/6045/contributions /13969/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13969/ END:VEVENT BEGIN:VEVENT SUMMARY:Rafael Bernar (UFPA\, Brasil) DTSTART;VALUE=DATE-TIME:20201217T110500Z DTEND;VALUE=DATE-TIME:20201217T115000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13968@indico.ific.uv.es DESCRIPTION:Quantum superradiance of a charged scalar field in Reissner-No rdström \nspacetime.\n\nAbstract: We analyze the quantum version of charg e superradiance for a massless scalar field in Reissner-Nordström spaceti me. We compute the expectation \nvalues of the operators associated to the fluxes of charge and energy \nfrom the black hole in the vacuum state whi ch has no particles as past \nnull infinity. We show that these expectatio n values are nonvanishing \nand\, therefore\, that there is an outgoing fl ux of superradiant particles \nat future null infinity.\n\nhttps://indico. ific.uv.es/event/6045/contributions/13968/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13968/ END:VEVENT BEGIN:VEVENT SUMMARY:Simon Boudet (University of Trento\, Italy) DTSTART;VALUE=DATE-TIME:20201217T103000Z DTEND;VALUE=DATE-TIME:20201217T110000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13967@indico.ific.uv.es DESCRIPTION:"Super-entropic black hole with Immirzi hair"\n\n\nAbstract: " In the context of f(R) generalizations to the Holst action\, endowed with a dynamical Immirzi field\, we derive an analytic solution describing asym ptotically Anti-de Sitter black holes with hyperbolic horizon. These exhib it a scalar hair of the second kind\, which ultimately depends on the Immi rzi field radial behaviour. In particular\, we show how the Immirzi field modifies the usual entropy law associated to the black hole. We also verif y that the Immirzi field boils down to a constant value in the asymptotic region\, thus restoring the standard Loop Quantum Gravity picture. We fina lly prove the violation of the reverse isoperimetric inequality\, resultin g in the super-entropic nature of the black hole\, and we discuss in detai l the thermodynamic stability of the solution."\n\nhttps://indico.ific.uv. es/event/6045/contributions/13967/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13967/ END:VEVENT BEGIN:VEVENT SUMMARY:Sergi Nadal (UV) DTSTART;VALUE=DATE-TIME:20201217T095000Z DTEND;VALUE=DATE-TIME:20201217T102000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13966@indico.ific.uv.es DESCRIPTION:Title: Renormalization\, running couplings\, and decoupling fo r the Yukawa model in curved spacetime\n\nhttps://indico.ific.uv.es/event/ 6045/contributions/13966/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13966/ END:VEVENT BEGIN:VEVENT SUMMARY:Aneta Wojnar (U. Tartu\, Estonia) DTSTART;VALUE=DATE-TIME:20201217T090000Z DTEND;VALUE=DATE-TIME:20201217T094500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13965@indico.ific.uv.es DESCRIPTION:Title: Low-mass stars in modified gravity\n\nAbstract: \n\nI w ill present modified gravity impacts on stars' early evolution\, such as H ayashi tracks and radiative core development\, together with the measured quantities such as effective temperature\, masses\, luminosities\, and abu ndance of light elements. The last one introduces an additional uncertaint y to age determination techniques of young stars and globular clusters sin ce they rely on a lithium depletion.\n\nhttps://indico.ific.uv.es/event/60 45/contributions/13965/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13965/ END:VEVENT BEGIN:VEVENT SUMMARY:João Paulo Bessa Brito DTSTART;VALUE=DATE-TIME:20201216T164000Z DTEND;VALUE=DATE-TIME:20201216T171000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13964@indico.ific.uv.es DESCRIPTION:Synchrotron geodesic radiation in Schwarzschild-de Sitter spac etime.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13964/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13964/ END:VEVENT BEGIN:VEVENT SUMMARY:Sergi Navarro-Albalat (University of Texas) DTSTART;VALUE=DATE-TIME:20201216T160000Z DTEND;VALUE=DATE-TIME:20201216T163000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13963@indico.ific.uv.es DESCRIPTION:Modelling extreme mass ratio inspirals\n\nhttps://indico.ific. uv.es/event/6045/contributions/13963/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13963/ END:VEVENT BEGIN:VEVENT SUMMARY:Gerardo Mora DTSTART;VALUE=DATE-TIME:20201216T152000Z DTEND;VALUE=DATE-TIME:20201216T155000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13962@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/6045/contributions/13962/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13962/ END:VEVENT BEGIN:VEVENT SUMMARY:Haroldo Cilas Duarte Lima Junior DTSTART;VALUE=DATE-TIME:20201216T144000Z DTEND;VALUE=DATE-TIME:20201216T151000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13961@indico.ific.uv.es DESCRIPTION:4D Einstein-Gauss-Bonnet gravity: Massless particles and absor ption of planar spin-0 waves.\n\nhttps://indico.ific.uv.es/event/6045/cont ributions/13961/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13961/ END:VEVENT BEGIN:VEVENT SUMMARY:Adrian Del Río (IST\, Lisboa) DTSTART;VALUE=DATE-TIME:20201215T090000Z DTEND;VALUE=DATE-TIME:20201215T094500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13960@indico.ific.uv.es DESCRIPTION:Gravitational-wave signatures of quantum gravity.\n\nAbstract: We show that gravitational-wave astronomy has the potential to inform us on quantum aspects of black holes. Based on Bekenstein's quantization\, we find that black hole area discretization could impart observable imprints to the gravitational-wave signal from a pair of merging black holes\, aff ecting their absorption properties during inspiral and their late-time rel axation after merger. Black hole rotation\, ubiquitous in astrophysics\, i mproves our ability to probe these quantum effects. Our analysis shows tha t gravitational-wave echoes and suppressed tidal heating are signs of new physics from which the fundamental quantum of black hole area can be measu red\, and which are within reach of future detectors. Our results also hig hlight the need to derive predictions from specific quantum gravity propos als.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13960/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13960/ END:VEVENT BEGIN:VEVENT SUMMARY:Renan Batalha Magalhaes DTSTART;VALUE=DATE-TIME:20201216T140500Z DTEND;VALUE=DATE-TIME:20201216T143500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13959@indico.ific.uv.es DESCRIPTION:Persistence of wormholes in Palatini gravity\n\nhttps://indico .ific.uv.es/event/6045/contributions/13959/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13959/ END:VEVENT BEGIN:VEVENT SUMMARY:Marco Aurélio Abreu de Paula DTSTART;VALUE=DATE-TIME:20201216T103000Z DTEND;VALUE=DATE-TIME:20201216T110000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13958@indico.ific.uv.es DESCRIPTION:Electrically charged black holes in linear and nonlinear elect rodynamics: Geodesic analysis and scalar absorption.\n\nhttps://indico.ifi c.uv.es/event/6045/contributions/13958/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13958/ END:VEVENT BEGIN:VEVENT SUMMARY:Francisco José Maldonado Torralba (UCT and U.Groningen) DTSTART;VALUE=DATE-TIME:20201216T111000Z DTEND;VALUE=DATE-TIME:20201216T114000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13957@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/6045/contributions/13957/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13957/ END:VEVENT BEGIN:VEVENT SUMMARY:Avishek Dusoye (UCT\, Cape Town) DTSTART;VALUE=DATE-TIME:20201216T095000Z DTEND;VALUE=DATE-TIME:20201216T102000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13956@indico.ific.uv.es DESCRIPTION:Disformal couplings in a CDM background cosmology.\n\nAbstract : The coupled quintessence model with disformal couplings is treated here to mimic the LCDM background. Using this approach\, the quintessence poten tial does not have to be specified. The model considers a generic fluid co upled to the quintessence\, which is specified to be either dark matter or a relativistic fluid. The LCDM background consists of a cosmological cons tant and another uncoupled generic fluid\, to cater for three studied sce narios (I\, II\, III). The cosmological dynamics is investigated for the c oupled quintessence model\, whose disformal couplings depend on the equati on of state of both generic fluids. The scenario I\, whereby both generic fluids are dark matter was further analysed for an expansion history of th e mimicking model. The analysis confirms that the mass scale of the quinte ssence influences the disformal characteristics of the dynamical system\, which is portrayed by the evolution of an effective conformal coupling.\n\ nhttps://indico.ific.uv.es/event/6045/contributions/13956/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13956/ END:VEVENT BEGIN:VEVENT SUMMARY:Opening DTSTART;VALUE=DATE-TIME:20201214T084500Z DTEND;VALUE=DATE-TIME:20201214T090000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13955@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/6045/contributions/13955/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13955/ END:VEVENT BEGIN:VEVENT SUMMARY:Caio F.B. Macedo (UFPA\,Brasil) DTSTART;VALUE=DATE-TIME:20201215T170000Z DTEND;VALUE=DATE-TIME:20201215T180000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13954@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/6045/contributions/13954/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13954/ END:VEVENT BEGIN:VEVENT SUMMARY:Diego Rubiera-Garcia (UCM\, Madrid) DTSTART;VALUE=DATE-TIME:20201215T160000Z DTEND;VALUE=DATE-TIME:20201215T170000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13953@indico.ific.uv.es DESCRIPTION:Testing modified gravity with relativistic and non-relativisti c stars.\n\nAbstract: I will discuss the most promising opportunities for testing modified gravity effects using models of stellar structure for bot h relativistic (neutron stars) and non-relativistic (brown\, red\, white) stars.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13953/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13953/ END:VEVENT BEGIN:VEVENT SUMMARY:Alfredo Delgado Miravet (UCM\, Madrid) DTSTART;VALUE=DATE-TIME:20201215T150500Z DTEND;VALUE=DATE-TIME:20201215T153500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13952@indico.ific.uv.es DESCRIPTION:The imprint of ultralight vector fields on gravitational wave propagation.\n\nAbstract: We study the effects of ultralight vector field (ULVF) dark matter on gravitational wave propagation. We find that the coh erent oscillations of the vector field suppress the amplitude of gravity waves as compared to the $\\Lambda$CDM prediction. The effect is enhanced for smaller vector field masses and peaks for modes around $k=H_0/\\sqrt{ a(H=m)}$. The suppression is negligible for astrophysically generated grav itational waves but could be sizeable for primordial gravity waves. We dis cuss the possibility of detecting such an effect on the CMB B-mode power s pectrum with the sensitivity of future detectors. We find that the upcomin g LiteBird mission would be sensitive to ULVF dark matter with masses $m \\lsim 10^{-26}$ eV for sufficiently large abundances.\n\nhttps://indico.i fic.uv.es/event/6045/contributions/13952/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13952/ END:VEVENT BEGIN:VEVENT SUMMARY:Francisco S.N. Lobo DTSTART;VALUE=DATE-TIME:20201215T140000Z DTEND;VALUE=DATE-TIME:20201215T150000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13951@indico.ific.uv.es DESCRIPTION:Thin-shell and and black-bounce traversable wormholes.\n\nhttp s://indico.ific.uv.es/event/6045/contributions/13951/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13951/ END:VEVENT BEGIN:VEVENT SUMMARY:Matheus A. Marquez (UFPB\,Brasil) DTSTART;VALUE=DATE-TIME:20201215T110500Z DTEND;VALUE=DATE-TIME:20201215T115000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13950@indico.ific.uv.es DESCRIPTION:New results on magnetic monopoles.\n\nhttps://indico.ific.uv.e s/event/6045/contributions/13950/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13950/ END:VEVENT BEGIN:VEVENT SUMMARY:Sérgio Vinicius Monteiro Castelo Branco Xavier DTSTART;VALUE=DATE-TIME:20201215T103000Z DTEND;VALUE=DATE-TIME:20201215T110000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13949@indico.ific.uv.es DESCRIPTION:Shadows of charged rotating black holes: Kerr-Newman versus Ke rr-Sen\n\nhttps://indico.ific.uv.es/event/6045/contributions/13949/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13949/ END:VEVENT BEGIN:VEVENT SUMMARY:Adrián Casado Turrión (UCM\, Madrid) DTSTART;VALUE=DATE-TIME:20201215T095000Z DTEND;VALUE=DATE-TIME:20201215T102000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13948@indico.ific.uv.es DESCRIPTION:Accelerating towards an ambidextrous world: chiral symmetry re storation by the Unruh effect\n\nAbstract:In this presentation we shall co nsider the possibility of triggering the chiral phase transition of QCD th rough uniform acceleration\, i.e. by the Unruh effect. Using Chiral Pertur bation Theory at leading order and in the large N limit (with N being the number of pions) as the effective description of low-energy QCD\, and the Thermalization Theorem formalism to compute the relevant partition functio n for the accelerated observer\, we are able to find that chiral symmetry is restored for accelerations higher than the critical value a_c = 4 π f_ π\, where f_π is the pion decay constant. Therefore\, our results are in complete agreement with those obtained in the inertial\, finite-temperatu re case.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13948/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13948/ END:VEVENT BEGIN:VEVENT SUMMARY:João Luis Rosa (U. Tartu\, Estonia) DTSTART;VALUE=DATE-TIME:20201216T090000Z DTEND;VALUE=DATE-TIME:20201216T094500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13947@indico.ific.uv.es DESCRIPTION:Existence and stability of relativistic fluid spheres supporte d by thin-shells.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13 947/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13947/ END:VEVENT BEGIN:VEVENT SUMMARY:Carolina Benone (UFPA\, Brasil) DTSTART;VALUE=DATE-TIME:20201214T165500Z DTEND;VALUE=DATE-TIME:20201214T175500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13946@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/6045/contributions/13946/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13946/ END:VEVENT BEGIN:VEVENT SUMMARY:Iarley P. Lobo (UFLA/UFPB\,Brasil) DTSTART;VALUE=DATE-TIME:20201214T160000Z DTEND;VALUE=DATE-TIME:20201214T164500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13945@indico.ific.uv.es DESCRIPTION:Reaching Planck scale sensitivity with muon lifetimes from Fin sler measures.\n\n\nAbstract: Planck scale modified dispersion relations a re one way how to capture the influence of quantum gravity on the propagat ion of fundamental point particles effectively. We derive the time dilatio n between an observer's or particle's proper time\, given by a Finslerian length measure induced from a modified dispersion relation\, and a referen ce laboratory time. To do so\, the Finsler length measure for general firs t order perturbations of the general relativistic dispersion relation is c onstructed explicitly. From this we then derive the time dilation formula for the κ-Poincaré dispersion relation in several momentum space bases\, as well as for modified dispersion relations considered in the context of loop quantum gravity and Hořava-Lifshitz gravity. Most interestingly we find that the momentum Lorentz factor in the present and future colliders can\, in principle\, become large enough to constrain the κ-Poincaré dis persion relation in the bicrossproduct basis with Planck scale sensitivity with help of the muon's lifetime.\n\nhttps://indico.ific.uv.es/event/6045 /contributions/13945/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13945/ END:VEVENT BEGIN:VEVENT SUMMARY:Robert Santacruz Zaragoza (U. New Brunswick\, Canada) DTSTART;VALUE=DATE-TIME:20201214T152000Z DTEND;VALUE=DATE-TIME:20201214T155000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13944@indico.ific.uv.es DESCRIPTION:Black Hole collapse and bounce in effective loop quantum gravi ty\n\nhttps://indico.ific.uv.es/event/6045/contributions/13944/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13944/ END:VEVENT BEGIN:VEVENT SUMMARY:Llorenç Espinosa Portalés (IFT\, Madrid) DTSTART;VALUE=DATE-TIME:20201214T144000Z DTEND;VALUE=DATE-TIME:20201214T151000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13943@indico.ific.uv.es DESCRIPTION:Long range enhanced mutual information from inflation\n\nhttps ://indico.ific.uv.es/event/6045/contributions/13943/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13943/ END:VEVENT BEGIN:VEVENT SUMMARY:Silvia Pla García (UV\, Valencia) DTSTART;VALUE=DATE-TIME:20201214T140000Z DTEND;VALUE=DATE-TIME:20201214T143000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13942@indico.ific.uv.es DESCRIPTION:Particle creation by electric and gravitational fields\n\nhttp s://indico.ific.uv.es/event/6045/contributions/13942/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13942/ END:VEVENT BEGIN:VEVENT SUMMARY:Mercè Guerrero (UCM\, Madrid) DTSTART;VALUE=DATE-TIME:20201214T110000Z DTEND;VALUE=DATE-TIME:20201214T113000Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13941@indico.ific.uv.es DESCRIPTION:Double shadows of asymmetric wormhole in Palatini f(R)\n\n\nAb stract: We discuss the stability and appearance of an asymmetric thin shel l wormhole within the Palatini\nf(R) gravity matching two Reissner-Nordstr öm space-times with different masses and charges via\nsuitable junction c onditions.\n\nhttps://indico.ific.uv.es/event/6045/contributions/13941/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13941/ END:VEVENT BEGIN:VEVENT SUMMARY:Luis C.B. Crispino (UFPA\,Brazil) DTSTART;VALUE=DATE-TIME:20201214T091500Z DTEND;VALUE=DATE-TIME:20201214T101500Z DTSTAMP;VALUE=DATE-TIME:20260714T225913Z UID:indico-contribution-6045-13940@indico.ific.uv.es DESCRIPTION:The first attempts to measure light deflection by the Sun.\n\n https://indico.ific.uv.es/event/6045/contributions/13940/ LOCATION:Online URL:https://indico.ific.uv.es/event/6045/contributions/13940/ END:VEVENT END:VCALENDAR