156 citations · 530 across the 14 of their papers we have counts for
14 papers
Entropy applications in cosmology: spacetime thermodynamics, holographic dark energy, entropic gravity and beyond - a review
Emmanuel N. Saridakis, Giuseppe Gaetano Luciano, Andreas Lymperis +1
Entropy has emerged as a key concept at the intersection of gravity, quantum theory, and cosmology, revealing deep connections between geometry, information, and thermodynamics. Th…
Modified cosmology though spacetime thermodynamics and generalized mass-to-horizon entropy
Spyros Basilakos, Andreas Lymperis, Maria Petronikolou +1
In this work we apply the gravity-thermodynamics approach for the case of generalized mass-to-horizon entropy, which is a two-parameter extension of Bekenstein-Hawking entropy that…
Correspondence between Myrzakulov gravity and Tsallis cosmology
Andreas Lymperis, Gulgassyl Nugmanova, Almira Sergazina
We investigate the correspondence between Myrzakulov gravity and Tsallis cosmology. The former is a modified gravity that uses both curvature and nonmetricity, while the l…
Non-singular bounce solutions in Myrzakulov gravity
Andreas Lymperis, Gulgassyl Nugmanova, Almira Sergazina
We investigate the realization of a nonsingular bounce within the framework of Myrzakulov \( F(R,T) \) gravity. This modified gravitational theory uses a non-special connection tha…
Barrow holographic dark energy with varying exponent
Spyros Basilakos, Andreas Lymperis, Maria Petronikolou +1
We construct Barrow holographic dark energy with varying exponent. Such an energy-scale-dependent behavior is typical in quantum field theory and quantum gravity under renormalizat…
Holographic dark energy through Loop Quantum Gravity inspired entropy
Andreas Lymperis
We construct a new cosmological holographic dark energy scenario based on Loop Quantum Gravity inspired entropy, instead of the standard Bekenstein-Hawking one. The former is an ex…
Alleviating both and tensions in Tsallis cosmology
Spyros Basilakos, Andreas Lymperis, Maria Petronikolou +1
We present how Tsallis cosmology can alleviate both and tensions simultaneously. Such a modified cosmological scenario is obtained by the application of the gravity-the…
Modified gravity and cosmology with nonminimal (derivative) coupling between matter and the Einstein tensor
Petros Asimakis, Spyros Basilakos, Andreas Lymperis +2
We construct new classes of modified theories in which the matter sector couples with the Einstein tensor, namely we consider direct couplings of the latter to the energy-momentum…
Primordial black holes and gravitational waves from non-canonical inflation
Theodoros Papanikolaou, Andreas Lymperis, Smaragda Lola +1
Primordial black holes (PBHs) can generically form in inflationary setups through the collapse of enhanced cosmological perturbations, providing us access to the early Universe thr…
Late-time cosmology with phantom dark-energy in gravity
Andreas Lymperis
Motivated by the exciting features and a recent proposed general form of the function of non-metricity scalar Q, we investigate the cosmological implications in gravity, thr…
Kaniadakis holographic dark energy and cosmology
Niki Drepanou, Andreas Lymperis, Emmanuel N. Saridakis +1
We construct a holographic dark energy scenario based on Kaniadakis entropy, which is a generalization of Boltzmann-Gibbs entropy that arises from relativistic statistical theory a…
Modified cosmology through Kaniadakis horizon entropy
Andreas Lymperis, Spyros Basilakos, Emmanuel N. Saridakis
We apply the gravity-thermodynamics conjecture, namely the first law of thermodynamics on the Universe horizon, but using the generalized Kaniadakis entropy instead of the standard…
Inflation with non-canonical scalar fields revisited
Smaragda Lola, Andreas Lymperis, Emmanuel N. Saridakis
We revisit inflation with non-canonical scalar fields by applying deformed-steepness exponential potentials. We show that the resulting scenario can lead to inflationary observable…
Modified cosmology through nonextensive horizon thermodynamics
Andreas Lymperis, Emmanuel N. Saridakis
We construct modified cosmological scenarios through the application of the first law of thermodynamics in the universe horizon, but using the generalized, nonextensive Tsallis ent…