322 citations · 716 across the 13 of their papers we have counts for
13 papers
Atomistic origins of asymmetric charge-discharge kinetics in off-stoichiometric LiNiO
Penghao Xiao, Ning Zhang, Harold Smith Perez +1
LiNiO shows poor Li transport kinetics at the ends of charge and discharge in the first cycle, which significantly reduces its available capacity in practice. The atomistic ori…
Vacua and instantons of ghost-free massive gravity
Minjoon Park, Lorenzo Sorbo
Recently discovered models of ghost-free massive gravity and bigravity are characterized by a non-trivial potential that gives rise to a rich vacuum structure. We review maximally…
Dark Energy or Modified Gravity? An Effective Field Theory Approach
Jolyon K. Bloomfield, Éanna É. Flanagan, Minjoon Park +1
We take an Effective Field Theory (EFT) approach to unifying existing proposals for the origin of cosmic acceleration and its connection to cosmological observations. Building on e…
Massive Gravity from Higher Derivative Gravity with Boundary Conditions
Minjoon Park, Lorenzo Sorbo
With an appropriate choice of parameters, a higher derivative theory of gravity can describe a normal massive sector and a ghost massless sector. We show that, when defined on an a…
Sudden variations in the speed of sound during inflation: features in the power spectrum and bispectrum
Minjoon Park, Lorenzo Sorbo
We employ the formalism of the effective field theory of inflation to study the effects of a sudden change in the speed of sound of the inflationary perturbations. Such an event ge…
Quantum Aspects of Massive Gravity II: Non-Pauli-Fierz Theory
Minjoon Park
We investigate the non-Pauli-Fierz(nPF) theory, a linearized massive gravity with a generic graviton mass term, which has been ignored due to a ghost in its spectrum and the result…