255 citations · 995 across the 23 of their papers we have counts for
23 papers
Light quark energy loss in the flavor-dependent systems from holography
Le Zhang, Lu Yin, Guo-Dong Zhou +2
Using the holographic model of finite-endpoint-momentum shooting string approach, we study the instantaneous energy loss of light quarks for the flavor-dependent systems with $N_f…
Late-time Cosmology without Dark Sector but with Closed String Massless Sector
Hocheol Lee, Jeong-Hyuck Park, Liliana Velasco-Sevilla +1
We explore the possibility of solving the dark energy and the coincidence problems by postulating the massless sector of closed strings. This sector constitutes the gravitational m…
Cosmic-Dawn 21-cm Signal from Dynamical Dark Energy
Lu Yin
The 21-cm signal is the most important measurement for us to understand physics during cosmic dawn. It is the key for us to understand the expansion history of the Universe and the…
Is Cosmic Birefringence model-dependent?
Lu Yin, Joby Kochappan, Tuhin Ghosh +1
Exciting clues to isotropic cosmic birefringence have recently been detected in the cross-power spectra of the polarization data of the cosmic microwave background (CMB). Earl…
WIMPs in Dilatonic Einstein Gauss-Bonnet Cosmology
Anirban Biswas, Arpan Kar, Bum-Hoon Lee +5
We use the Weakly Interacting Massive Particle (WIMP) thermal decoupling scenario to probe Cosmologies in dilatonic Einstein Gauss-Bonnet (dEGB) gravity, where the Gauss-Bonnet ter…
Inevitable manifestation of wiggles in the expansion of the late Universe
Ozgur Akarsu, Eoin O. Colgain, Emre Ozulker +2
Using the fact that the comoving angular diameter distance to the last scattering surface is strictly constrained almost model independently, we show that, for any model agreeing w…
Is the Observable Universe Consistent with the Cosmological Principle?
Pavan Kumar Aluri, Paolo Cea, Pravabati Chingangbam +20
The Cosmological Principle (CP) -- the notion that the Universe is spatially isotropic and homogeneous on large scales -- underlies a century of progress in cosmology. It is conven…
On Larger Values in the CMB Dipole Direction
Orlando Luongo, Marco Muccino, Eoin Ó Colgáin +2
On the assumption that quasars (QSO) and gamma-ray bursts (GRB) represent \textit{standardisable candles}, we provide evidence that the Hubble constant adopts larger values i…
Hints of FLRW Breakdown from Supernovae
Chethan Krishnan, Roya Mohayaee, Eoin Ó Colgáin +2
A 10\% difference in the scale for the Hubble parameter constitutes a clear problem for cosmology. Here, considering angular distribution of Type Ia supernovae (SN) within the Pant…
Does Hubble Tension Signal a Breakdown in FLRW Cosmology?
Chethan Krishnan, Roya Mohayaee, Eoin Ó Colgáin +2
The tension between early and late Universe probes of the Hubble constant has motivated various new FLRW cosmologies. Here, we reanalyse the Hubble tension with a recent age of the…
A Dark Energy model from Generalized Proca Theory
Chao-Qiang Geng, Yan-Ting Hsu, Jhih-Rong Lu +1
We consider a specific dark energy model, which only includes the Lagrangian up to the cubic order in terms of the vector field self-interactions in the generalized Proca theory. W…
Can dark energy be dynamical?
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Lu Yin
We highlight shortcomings of the dynamical dark energy (DDE) paradigm. For parametric models with equation of state (EOS), for a given function of redshift…
Observational Constraints on the Cosmology with Holographic Dark Fluid
Da Huang, Bum-Hoon Lee, Gansukh Tumurtushaa +2
We consider the holographic Friedman-Robertson-Walker (hFRW) universe on the 4-dimensional membrane embedded in the 5-dimensional bulk spacetime and fit the parameters with the obs…
Reducing the Tension with Exponential Acoustic Dark Energy
Lu Yin
The Hubble tension arises from different observations between the late-time and early Universe. We explore a new model with dark fluid, called the exponential Acoustic Dark Energy…
Reducing the tension with generalized Proca theory
Antonio De Felice, Chao-Qiang Geng, Masroor C. Pookkillath +1
We investigate the cosmological viability of the generalized proca theory. We first implement the background and linear perturbation equations of motion in the Boltzmann code and t…
Running vacuum model in non-flat universe
Chao-Qiang Geng, Yan-Ting Hsu, Lu Yin +1
We investigate observational constraints on the running vacuum model (RVM) of in the spatially curved universe, where is the model parameter, corres…
Constraints on a special running vacuum model
Chao-Qiang Geng, Chung-Chi Lee, Lu Yin
We study a special running vacuum model (RVM) with , where , and are the model parameters and is the Hubble one. This RVM has non-ana…
Modified Cosmology Models from Thermodynamical Approach
Chao-Qiang Geng, Yan-Ting Hsu, Jhih-Rong Lu +1
We apply the first law of thermodynamics to the apparent horizon of the universe with the power-law corrected and non-extensive Tsallis entropies rather than the Bekenstein-Hawking…
Stochastic Gravitational Waves from Inflaton Decays
Da Huang, Lu Yin
Due to the universality of gravitational interactions, it is generally expected that a stochastic gravitational wave (GW) background could form during the reheating period when the…
Multicomponent Dark Matter in the Light of CALET and DAMPE
Chao-Qiang Geng, Da Huang, Lu Yin
In the light of the latest measurements on the total flux by CALET and DAMPE experiments, we revisit the multicomponent leptonically decaying dark matter (DM) explanati…
Cosmological constraints on CDM models with time-varying fine structure constant
Jin-Jun Zhang, Lu Yin, Chao-Qiang Geng
We study the CDM models with being a function of the time-varying fine structure constant . We give a close look at the constraints on two specific CDM models…
Constraints on running vacuum model with and
Chao-Qiang Geng, Chung-Chi Lee, Lu Yin
We examine the running vacuum model with , where is the model parameter and is the cosmological constant. From the data of the cosmic microwave backg…
A closer look at interacting dark energy with statefinder hierarchy and growth rate of structure
Jing-Lei Cui, Lu Yin, Ling-Feng Wang +2
We investigate the interacting dark energy models by using the diagnostics of statefinder hierarchy and growth rate of structure. We wish to explore the deviations from CDM and…