collaborators

5 papers

gr-qc2026

Dynamical Resolution of the Cosmic Coincidence Problem in Non-Interacting Holographic Dark Energy via Einstein-Cartan Torsion

Yongjun Yun, Kyungduk Kim, Jungjai Lee

We investigate the cosmic coincidence problem in non-interacting holographic dark energy with the Hubble radius as the infrared cutoff in Einstein-Cartan gravity. In general relati…

gr-qc2026

Holographic Dark Energy with Hubble Radius as an Infrared Cutoff in Einstein-Cartan Gravity

Yongjun Yun, Jungjai Lee

In this work, we investigate non-interacting holographic dark energy (HDE) with the Hubble radius as the infrared cutoff in Einstein-Cartan gravity. We derive the Einstein-Cartan e…

physics.gen-ph2026

Electromagnetism from relativistic fluid dynamics

Jeongwon Ho, Hyeong-Chan Kim, Jungjai Lee +1

We reformulate classical electromagnetism within the matter-space framework of relativistic fluid dynamics. The central assumption is that the relevant degrees of freedom are encod…

gr-qc2025

Non-interacting holographic dark energy with Torsion via Hubble Radius

Yongjun Yun, Jungjai Lee

We reconstruct a holographic dark energy model within a Friedmann cosmology incorporating torsion scalar, assuming no interaction between dark energy and dark matter. Setting the H…

gr-qc2025

Holographic Dark Energy with Torsion

Yongjun Yun, Jungjai Lee

We consider the holographic dark energy model with axial torsion which satisfy the cosmological principle. Subsequently, by using the torsional analogues of Friedmann equations for…