107 citations · 265 across the 5 of their papers we have counts for
5 papers
Numerical Investigation of Triexciton Stabilization in Diamond with Multiple Valleys and Bands
Hiroki Katow, Junko Usukura, Ryosuke Akashi +2
The existence of polyexcitons, the -body complexes of excitons for in 3D bulk systems, has been controversial for more than 40 years since its first theoretical suggesti…
Properties of few-electron artificial atoms
K. Varga, P. Navratil, J. Usukura +1
The spectra of quantum dots of different geometry (``quantum ring'', ``quantum cylinder'', ``spherical square-well'' and ``parabolic confinement'') are studied. The stochastic vari…
Signature of the existence of the positronium molecule
J. Usukura, K. Varga, Y. Suzuki
The positronium molecule (Ps) has not been experimentally observed yet because its tiny (4.5 eV) binding energy cannot be detected when the molecule annihilates by emitting two…
Second bound state of the positronium molecule and biexcitons
K. Varga, J. Usukura, Y. Suzuki
A new, hitherto unknown bound state of the positronium molecule, with orbital angular momentum L=1 and negative parity is reported. This state is stable against autodissociation ev…
New representation of orbital motion with arbitrary angular momenta
Y. Suzuki, J. Usukura, K. Varga
A new formulation is presented for a variational calculation of -body systems on a correlated Gaussian basis with arbitrary angular momenta. The rotational motion of the system…