205 citations · 3.3k across the 120 of their papers we have counts for
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Hamiltonian formulation of fractional kinetics
Sumiyoshi Abe
Fractional kinetic theory plays a vital role in describing anomalous diffusion in terms of complex dynamics generating semi-Markovian processes. Recently, the variational principle…
Estimating entanglement in a class of N-qudit states
Sumiyoshi Abe
The logarithmic derivative (or, quantum score) of a positive definite density matrix appearing in the quantum Fisher information is discussed, and its exact expression is presented…
Derivation of Bose-Einstein and Fermi-Dirac statistics from quantum mechanics: gauge-theoretical structure
Yuho Yokoi, Sumiyoshi Abe
A possible quantum-mechanical origin of statistical mechanics is discussed, and microcanonical and canonical ensembles of bosons and fermions are derived from the stationary Schröd…
Aftershocks following crash of currency exchange rate: The case of RUB/USD in 2014
Vasilya Usmanova, Yury V. Lysogorskiy, Sumiyoshi Abe
The dynamical behavior of the currency exchange rate after its large-scale catastrophe is discussed through a case study of the rate of Russian rubles to US dollars after its crash…