31 citations · 31 across the 7 of their papers we have counts for
7 papers
Computing high-order mixed derivatives in physics-informed neural networks using multi-index Bell polynomials
Fumihiro Imoto
Physics-informed neural networks for high-order partial differential equations require mixed input derivatives and their gradients with respect to the network parameters. Standard…
Self-consistent orbital-free nuclear density functional theory with a physics-constrained learned nonlocal kinetic energy functional
Fumihiro Imoto
Nonlocal kinetic-energy density functionals (KEDFs) can encode nuclear shell structure in orbital-free density functional theory (OFDFT), but self-consistency requires accurate fun…
Semilocal exchange functionals from the exact-exchange condition for the hydrogen atom: Hydrogenic exactness and recovery of Rydberg-like bound states
Fumihiro Imoto
In semilocal density functionals the exchange potential decays too rapidly outside atoms and molecules and lacks the correct tail; as a consequence, functionals from PBE to…
Revisiting the expansion of the uniform electron gas in dimensions: terms from coincident Mellin poles
Fumihiro Imoto
The high-density expansion of the correlation energy of the uniform electron gas contains terms, where is the Wigner--Seitz radius. Their form depends on the dimen…
Unified description of cuprate superconductors by fractionalized electrons emerging from integrated analyses of photoemission spectra and quasiparticle interference
Shiro Sakai, Youhei Yamaji, Fumihiro Imoto +6
Electronic structure of high-temperature superconducting cuprates is studied by analyzing experimental data independently obtained from two complementary spectroscopies, one, quasi…
Order- orbital-free density-functional calculations with machine learning of functional derivatives for semiconductors and metals
Fumihiro Imoto, Masatoshi Imada, Atsushi Oshiyama
Orbital-free density functional theory (OFDFT) offers a challenging way of electronic-structure calculations scaled as computation for system size . We here dev…
Microscopic mechanisms of initial formation process of graphene on SiC(0001) surfaces
Fumihiro Imoto, Jun-Ichi Iwata, Mauro Boero +1
We report total-energy calculations based on the density-functional theory that clarify microscopic mechanisms of initial stage of graphene formation on the SiC(0001) surface. We e…