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13 papers · 1 filter
Three dimensional m-quasi Einstein manifolds with degenerate Ricci tensor
Jongsu Kim, Jinwoo Shin
In this article we give a classification of three dimensional m-quasi Einstein manifolds with two distinct Ricci-eigen values. Our study provides explicit description of local and…
Strain-shear coupling in bilayer MoS2
Jae-Ung Lee, Sungjong Woo, Jaesung Park +3
Layered materials such as graphite and transition metal dichalcogenides have extremely anisotropic mechanical properties owing to orders of magnitude difference between in-plane an…
Bright visible light emission from graphene
Young Duck Kim, Hakseong Kim, Yujin Cho +18
Graphene and related two-dimensional materials are promising candidates for atomically thin, flexible, and transparent optoelectronics. In particular, the strong light-matter inter…
The effective Tolman temperature in curved spacetimes
Wontae Kim
We review a recently proposed effective Tolman temperature and present its applications to various gravitational systems. In the Unruh state for the evaporating black holes, the fr…
On Gauge Invariant Cosmological Perturbations in UV-modified Horava Gravity: A Brief Introduction
Mu-In Park
We revisit gauge invariant cosmological perturbations in UV-modified, z = 3 Horava gravity with one scalar matter field, which has been proposed as a renormalizable gravity theory…
Tunneling decay of false vortices with gravitation
Eric Dupuis, Yan Gobeil, Bum-Hoon Lee +5
We study the effect of vortices on the tunneling decay of a symmetry-breaking false vacuum in three spacetime dimensions with gravity. The scenario considered is one in which the i…