Original papers

<46>
N. Namekata, N. Kobayashi, K. Nomura, T. Sako, N. Takata, S. Inoue
" Quantum optical tomography based on time-resolved and mode-selective single-photon detection by femtosecond up-conversion"
Scientific Reports 13 21080(12 pages) (2023)

<45>
K. Nomura and T. Sako
" Space-time exchanged symplectic integrator approach to temporal-mode selective optical three-wave mixing frequency conversion"
J. Phys. B: At. Mol. Opt. Phys. 56 095401(18 pages) (2023)

<44>
K. Nomura and T. Sako
" Schmidt decomposition analysis of normal- to local-mode transition in highly excited molecular vibration"
Chem. Phys. Lett. 779 138871(6 pages) (2021)

<43>
K. Asano, T. Sako, H. Ishida
" Spin-dependent transient current in transistor-like nanostructures"
J. Phys.: Condens. Matt. 32 435302(13 pages) (2020)

<42>
T. Honda and T. Sako
" Distribution of oscillator strengths and correlated electron dynamics in artificial atoms"
J. Phys. B: At. Mol. Opt. Phys. 53 175102(13 pages) (2020)

<41>
T. Takeuchi, T. Sako, K. Nobusada
" Light-dressed states under intense optical near fields"
Phys. Rev. A 98 053440(9 pages) (2018)

<40>
T. Sako, H. Ishida
" Field induced transient current in one-dimensional nanostructure"
Physica E 101 256-264 (2018)

<39>
S. Tsuru, T. Sako, T. Fujikawa, A. Yagishita
" Theory of time-resolved x-ray photoelectron diffraction from transient conformational molecules"
Phys. Rev. A 95 043404(9 pages) (2017)

<38>
T. Takeuchi, S. Ohnuki, T. Sako
" A simple formula to predict the influence of the near-field in the optical control of confined electron systems"
J. Phys. B: At. Mol. Opt. Phys. 50 045002(13 pages) (2017)

<37>
T. Takeuchi, S. Ohnuki, T. Sako
" A Quantum Switching System Manipulated by a Light Pulse Pair Designed in Maxwell - Schrödinger Hybrid Algorithm"
URSI-JRSM Special Issue 356 13 - 19 (2015)

<36>
T. Takeuchi, S. Ohnuki, T. Sako
" Maxwell-Schrödinger hybrid simulation for optically controlling quantum states: A scheme of designing control pulse"
Phys. Rev. A 91 033401(13 pages) (2015)

<35>
J. Paldus, T. Sako, G.H.F. Diercksen
" On the cluster structure of linear-chain fermionic wave functions"
J. Math. Chem. 53 629-650 (2015)

<34>
T. Takeuchi, S. Ohnuki, T. Sako
" Hybrid Simulation of Maxwell-Schrödinger Equations for Multi-Physics Problems Characterized by Anharmonic Electrostatic Potential"
Progress in Electromagnetics Research148 73-82 (2014)

<33>
R. Itakura, M. Fushitani, A. Hishikawa, T. Sako
" Photoelectron-photoion correlation in ultrafast multichannel photoionization of Ar"
J. Phys. B: At. Mol. Opt. Phys. 47 195602(9 pages) (2014)

<32>
T. Sako, J. Paldus, G.H.F. Diercksen
" Angular correlation in He and He-like atomic ions: A manifestation of the genuine and conjugate Fermi holes"
Phys. Rev. A 89 062501(9 pages) (2014)

<31>
T. Takeuchi, S. Ohnuki, T. Sako
" Comparison Between Maxwell-Schrödinger and Maxwell-Newton Hybrid Simulations for Multiwell Electrostatic Potential"
IEEE J. Quantum Electronics 50 334-339 (2014)

<30>
S. Ohnuki, T. Takeuchi, T. Sako, Y. Ashizawa, K. Nakagawa and M. Tanaka
" Coupled Analysis of Maxwell-Schrödinger Equations by Using the Length Gauge: Harmonic Model of a Nanoplate Subjected to a 2D Electromagnetic Field"
Int. J. Numeric. Modelling 26 533-544 (2013)

<29>
J. Paldus, T. Sako, X. Li and G.H.F. Diercksen
" Symmetry-breaking in the independent particle model: nature of the singular behavior of Hartree-Fock potentials"
J. Math. Chem. 51 427-450 (2013)

<28>
T. Sako, J. Paldus, A. Ichimura and G.H.F. Diercksen
" Origin of the first Hund rule and the structure of Fermi holes in two-dimensional He-like atoms and two-electron quantum dots"
J. Phys. B: At. Mol. Opt. Phys. 45 235001(13 pages) (2012)
(covered by Europhysics News in its Highlights (Vol.44 No.1): "Conjugate Fermi hole and the first Hund rule")

<27>
T. Sako, J. Adachi, A. Yagishita, M. Yabashi, T. Tanaka,
M. Nagasono and T. Ishikawa
" Suppression of ionization probability due to Rabi oscillations in the resonance two-photon ionization of He by EUV free-electron lasers"
Phys. Rev. A 84 053419(8 pages) (2011)

<26>
T. Sako, J. Paldus, A. Ichimura and G.H.F. Diercksen
" Origin of Hund's multiplicity rule in singly excited helium: Existence of a conjugate Fermi hole in the lower spin state"
Phys. Rev. A 83 032511(11 pages) (2011)

<25>
N. Miyauchi, J. Adachi, A. Yagishita, T. Sako, F. Koike et al.
" Three-photon double ionization of Ar studied by photoelectron spectroscopy usin an extreme ultraviolet free-electron laser: manifestation of resonance states of an intermediate Ar⁺ ion"
J. Phys. B: At. Mol. Opt. Phys. 44 071001(7 pages) (2011)

<24>
T. Sako, J. Paldus and G.H.F. Diercksen
" Origin of Hund's multiplicity rule in quasi-two-dimensional two-electron quantum dots"
Phys. Rev. A 81 022501(11 pages) (2010)

<23>
T. Sako, J. Paldus and G.H.F. Diercksen
" The Energy Level Structure of Low-dimensional Multi-electron Quantum Dots"
Adv. Quantum Chem. 58 177-201 (2009)

<22>
T. Sako and G.H.F. Diercksen
" Understanding the spectra of few electrons confined in a quasi-one-dimensional nanostructure"
J. Phys.: Condens. Matter 20 155202(13 pages) (2008)

<21>
T. Sako and G.H.F. Diercksen
" Spectra and correlated wave functions of two electrons confined in a quasi-one-dimensional nanostructure"
Phys. Rev. B 75 115413(12 pages) (2007)

<20>
T. Sako, P.A. Hervieux and G.H.F. Diercksen
" Distribution of oscillator strength in Gaussian quantum dots: An energy flow from center-of-mass mode to internal modes"
Phys. Rev. B 74 045329(13 pages) (2006)

<19>
K. Hoshina, A. Hishikawa, K. Kato, T. Sako, K. Yamanouchi,
E.J. Takahashi, Y. Nabekawa and K. Midorikawa
" Dissociative ATI of H₂ and D₂ in intense soft x-ray laser fields"
J. Phys. B: At. Mol. Opt. Phys. 39 813-829 (2006)

<18>
T. Sako and G.H.F. Diercksen
" Confined quantum systems: spectra of weakly bound electrons in a strongly anisotropic oblate harmonic oscillator potential"
J. Phys.: Condens. Matter 17 5159-5178 (2005)

<17>
H. Okutsu, T. Sako, K. Yamanouchi and G.H.F. Diercksen
" Electronic structure of atoms in laser plasma: a Debye shielding approach"
J. Phys. B: At. Mol. Opt. Phys. 38 917-927 (2005)

<16>
I. Maruyama, T. Sako and K. Yamanouchi
" Time dependent nuclear wavepacket dynamics of H₂⁺ by quasi-stationary Floquet approach"
J. Phys. B: At. Mol. Opt. Phys. 37 3919-3936 (2004)

<15>
T. Sako, S. Yamamoto and G.H.F. Diercksen
" Confined quantum systems: dipole transition moment of the 2- and 3-electron quantum dots, and of the helium and the lithium atoms in a harmonic oscillator potential"
J. Phys. B: At. Mol. Opt. Phys. 37 1673-1688 (2004)

<14>
T. Sako, I. Cernusak and G.H.F. Diercksen
" Confined quantum systems: structure of the electronic ground state and of the three lowest excited electronic ¹Σ_g⁺ state of the lithium molecule"
J. Phys. B: At. Mol. Opt. Phys. 37 1091-1102 (2004)

<13>
T. Sako and G.H.F. Diercksen
" Confined quantum systems: dipole polarizability of the 2-electron quantum dot, the hydrogen negative ion and the helium atom"
J. Phys. B: At. Mol. Opt. Phys. 36 3743-3759 (2003)

<12>
T. Sako and G.H.F. Diercksen
" Confined quantum systems: spectral properties of 2-electron quantum dots"
J. Phys.: Condens. Matter 15 5487-5509 (2003)

<11>
T. Amano, T. Sako, K. Hoshina and K. Yamanouchi
" New vibrational force-field expansion of coupled linear benders: application to the X state of acetylene"
Chem. Phys. Lett. 375 576-582 (2003)

<10>
T. Sako and G.H.F. Diercksen
" Confined quantum systems: a comparison of the spectral properties of the two-electron quantum dot, the hydrogen negative ion and the helium atom "
J. Phys. B: At. Mol. Opt. Phys. 36 1681-1702 (2003)

<9>
T. Sako and G.H.F. Diercksen
" Confined quantum systems: spectral properties of the atoms helium and lithium in a power series potential"
J. Phys. B: At. Mol. Opt. Phys. 36 1433-1457 (2003)

<8>
T. Sako, K. Yamanouchi, and F. Iachello
" Algebraic effective resonance Hamiltonian approach to highly excited SO₂ (X¹A₁): Effect of bending excitation on local-mode bifurcation"
J. Chem. Phys. 117 1641-1648 (2002)

<7>
T. Sako, K. Yamanouchi, and F. Iachello
" Classical-limit analysis of the normal-to-local transition by the algebraic effective Hamiltonian approach"
J. Chem. Phys. 114 9441-9452 (2001)

<6>
T. Sako, K. Yamanouchi, and F. Iachello
" Intermultiplet interactions in normal and local mode molecules in the algebraic force-field expansion approach"
J. Chem. Phys. 113 7292-7305 (2000)

<5>
T. Sako, D. Aoki, K. Yamanouchi, and F. Iachello
" Algebraic force-field Hamiltonian expansion approach to linear polyatomic molecules"
J. Chem. Phys. 113 6063-6069 (2000)

<4>
T. Sako, K. Yamanouchi and F. Iachello
" Algebraic force-field Hamiltonian expansion for a strongly anharmonic potential: Application to the C state of SO₂"
Chem. Phys. Lett. 299 35-41 (1999)

<3>
T. Sako, A. Hishikawa and K. Yamanouchi
" Vibrational propensity in predissociation rate of SO₂ C¹B₂ by two-types of nodal pattern in vibrational wavefunctions"
Chem. Phys. Lett. 294 571-578 (1998)

<2>
H. Katagiri, T. Sako, A. Hishikawa, T. Yazaki, K. Onda,
K. Yamanouchi, and K. Yoshino
" Experimental and theoretical exploration of photodissociation of SO₂ via the C¹B₂ state: Identification of the dissociation pathway"
J. Mol. Struct. 413/414 589-614 (1997)

<1>
T. Sako and K. Yamanouchi
" Algebraic approach to the vibrationally highly excited SO₂: Vibrational wavefunctions from spectroscopy"
Chem. Phys. Lett. 264 403-410 (1997)