statistical physics; Bose–Einstein condensation; three- and four-particle correlations in the theory of many-boson systems

Full list of publications

• O. I. Hryhorchak
  Quantum wave impedance calculation for an arbitrary piesewise constant potential
  J. Phys. Stud. 28(4), 4704 [9 p.] (2024)
  [abs]

• O. Hryhorchak
  Application of a quantum wave impedance approach for a set of delta-potentials in 1D
  Visnyk Lviv Univ. Ser. Phys. 61, 15-28 (2024)
  [abs]

• O. Hryhorchak, V. Pastukhov
  Trapped ideal Bose gas with a few heavy impurities
  Atoms 11(5), 77 [11 p.] (2023)
  [abs]

• O. Hryhorchak, V. Pastukhov
  Second root of dilute Bose-Fermi mixtures
  J. Phys. A.: Math. Theor. 56(20), 205003 [15 p.] (2023)
  [abs]

• O. Hryhorchak, A. Rovenchak
  Higher multipoles of highly symmetric charge distributions over Platonic solids
  Phys. Scr. 98(4), 045501 [15 p.] (2023)
  [abs]

• O. Hryhorchak, V. Pastukhov
  Efimov-like physics in fraction-dimensional Bose systems with three-body interaction
  Eur. Phys. J. A 58(11), 215 [8 p.] (2022)
  [abs]

• O. I. Hryhorchak
  Reformulation of transmission and reflection problems in terms of quantum wave impedance function
  J. Phys. Stud. 25(4), 4001 [9 p.] (2021)
  [abs]

• F. Ivashchyshyn, A. Pidluzhna, D. Calus, O. Hryhorchak, P. Chabecki, O. Makarchuk
  Multivoltaic GaSe<SmCl₃> clathrate as new hybrid functional nanostructure
  Bull. Pol. Acad. Sci.: Tech. Sci. 69(2), e136726 [5 p.] (2021)
  [abs]

• O. Hryhorchak, V. Pastukhov
  Large-N expansion for condensation and stability of Bose–Bose mixtures at finite temperatures
  J. Low Temp. Phys. 202(1), 219-230 (2021)
  [abs]

• I. Grygorchak, D. Calus, A. Pidluzhna, F. Ivashchyshyn, O. Hryhorchak, P. Chabecki, R. Shvets
  Thermogalvanic and local field effects in SiO₂⟨SmCl₃⟩ structure
  Appl. Nanosci. 10(12), 4725-4731 (2020)
  [abs]

• O. Hryhorchak, G.Panochko, V. Pastukhov
  Impurity in a three-dimensional unitary Bose gas
  Phys. Lett. A 384(36), 126934 [5 p.] (2020)
  [abs]

• O. Hryhorchak, G. Panochko, V. Pastukhov
  Mean-field study of repulsive 2D and 3D Bose polarons
  J. Phys. B: At. Mol. Opt. Phys. 53(20), 205302 [8 p.] (2020)
  [abs]

(05 Apr 1985, Zabolotiv town, Snyatyn district, Ivano-Frankivsk region) — theoretical physicist, PhD (The microscopic theory of Bose-liquid with direct three- and four-particle correlations taken into account, 2016). Graduated from the Faculty of Physics, University of Lviv (2007). In 2007–2010 PhD student, in 2010-2018 assistant, since 2018 docent of the Department for Theoretical Physics.

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