address:

Institute of Theoretical Physics
Faculty of Mathematics and Physics
Charles University
V Holešovičkách 2
180 00 Praha 8
Czech Republic

office:

A1024

phone:

+420 95155 2497

e-mail:

jiri.horacek@matfyz.cuni.cz

www:

FMP CU

Field of Interests

Classes

• Seminář ústavu teoretické fyziky (SIS: NTMF008)

Theses

Students

Bachelor students

• Dávid Hvizdoš: Solution of integral equations for separable interactions (2011–2014)
• Pavel Brožek: Analytic continuation in coupling constant (2007–2010)
• Otto Strnad: Phaseshift analysis (2004–2008)

Master students

• Pavel Brožek: Generalization of the method of analytical continuation in coupling constant (2011–2014)
• Miroslav Šulc: Numerical solution of scattering integral equations (2002–2007)
• Přemysl Kolorenč: Aplikace zobecněné teorie R-matice v molekulárních srážkách (1997–2002)
• Karel Houfek: Studium rezonančních procesů při záchytu elektronu na molekulách (1994–1999)
• Michal Kovačič: Použití wavelets v nerelativistické kvantové teorii rozptylu (1994–1999)
• Bohdan Koudelka: Obrácená úloha rozptylu v nerelativistické kvantové mechanice (1993–1998)
• Lukáš Pichl: Příspěvek k teorii atomárních srážek (1992–1997)
• Martin Čížek: Příspěvek ke kvantové teorii rozptylu těžkých částic (1990–1995)
• František Gemperle: Disociační záchyt a metoda DVR (1990–1995)

Doctoral students

• Miroslav Šulc: Excitation of molecules by cold electrons (2008–2011)
• Michal Tarana: Collisions of slow electrons with molecules (2006–2009)
• Přemysl Kolorenč: Energy transfers in small molecules (2002–2005)
• Karel Houfek: Cross sections and rate constants of resonant low-energy electron-molecule collisions (1999–2002)

Bibliography

Librtfy

ORCID

List of publications affiliated with the Intsitute of Theoretical Physics

1. Čurík, R.; Horáček, J.: Determination of electronic resonances by analytic continuation using barycentric formula Comput. Phys. Commun. 306 (2025) DOI
2. Čurík, R.; Tarana, M.; Horáček, J.: Expansion of scattering length in S-matrix poles and the phenomenon of resistant virtual states Phys. Rev. A  108 (2023) DOI
3. Bárta, T.; Horáček, J.: Calculation of resonances by analytical continuation: role of asymptotic behavior of coupling function Phys. Scr. 95 (2020) DOI
4. Horáček, J.: Resonance cross-section formula for low-energy elastic scattering Phys. Rev. A  100 (2019) DOI
5. Čurík, R.; Paidarová, I.; Horáček, J.: Shape resonances of Be− and Mg− investigated with the method of analytic continuation Phys. Rev. A  97 (2018) DOI
6. Bárta, T.; Horáček, J.: An inverse eigenvalue problem for a one-dimensional Schrodinger equation with ¨ varying potential and applications to computing resonance energy of molecules (2018)
7. Horáček, J.; Pichl, L.: Calculation of Resonance S-Matrix Poles by Means of Analytic Continuation in the Coupling Constant Commun. Comput. Phys. 21 (2017) DOI
8. Čurík, R.; Paidarová, I.; Horáček, J.: The 2Πg shape resonance of acetylene anion: an investigation with the RAC method Eur. Phys. J. D  70 (2016) DOI
9. Pichl, L.; Horáček, J.: Determination of Resonant State Parameters from Ab Initio Data by Artificial Neural Network and Statistical Pade Approximation Plasma Fusion Res. 10 (2015) DOI
10. Horáček, J.; Paidarová, I.; Čurík, R.: On a simple way to calculate electronic resonances for polyatomic molecules J. Chem. Phys. 143 (2015) DOI
11. Horáček, J.; Paidarová, I.; Čurík, R.: Determination of the Resonance Energy and Width of the 2B2g Shape Resonance of Ethylene with the Method of Analytical Continuation in the Coupling Constant J. Phys. Chem. 118 (2014)
12. Pichl, L.; Horáček, J.: Determination of Resonant State Parameters from Ab Initio Data by Artificial Neural Network and Statistical Pade Approximation Plasma Fusion Res. N (2014) DOI
13. Papp, P.; Matejčík, Š.; Mach, P.; Urban, J.; Paidarová, I.; Horáček, J.: Analytical continuation in coupling constant method; application to the calculation of resonance energies and widths for organic molecules: Glycine, alanine and valine and dimer of formic acid Chem. Phys. 418 (2013)
14. Tarana, M.; Houfek, K.; Horáček, J.; Fabrikant, I. I.: Dissociative electron attachment and vibrational excitation of CF3Cl: Effect of two vibrational modes revisited Phys. Rev. A  84 (2011) DOI
15. Šulc, M.; Čurík, R.; Horáček, J.: Efficient solution of scattering equations by combination Eur. Phys. J. D  57 (2010) DOI
16. Fedor, J.; Winstead, C.; McKoy, V.; Čížek, M.; Houfek, K.; Kolorenč, P.; Horáček, J.: Electron scattering in HCl: An improved nonlocal resonance model Phys. Rev. A  81 (2010) DOI
17. Horáček, J.; Mach, P.; Urban, J.: Calculation of S-matrix poles by means of analytic continuation in the coupling constant: Phys. Rev. A  82 (2010) DOI
18. Čížek, M.; Horáček, J.: Long-lived metastable anions of hydrogen halides Int. J. Mass Spectrom. 280 (2009) DOI
19. Tarana, M.; Nestmann, B. M.; Horáček, J.: R-matrix calculations of the 2Ag elastic electron scattering off the Li2 molecule Phys. Rev. A  79 (2009) DOI
20. Houfek, K.; Čížek, M.; Horáček, J.: On irregular oscillatory structures in resonant vibrational excitation cross-sections in diatomic molecules Chem. Phys. 347 (2008) DOI
21. Tarana, M.; Horáček, J.: Correlation effects in R-matrix calculations of electron-F_{2} elastic scattering cross sections J. Chem. Phys. 127 (2007) DOI
22. Horáček, J.; Houfek, K.; Čížek, M.: Giant structures in low-energy electron-deuterium-iodide elastic scattering cross section Phys. Rev. A  75 (2007) DOI
23. Čížek, M.; Horáček, J.; Domcke, W.: Long-lived anionic states of H_{2} , HD, D_{2} , and T_{2} Phys. Rev. A  75 (2007) DOI
24. Fedor, J.; Cingel, M.; Skalný, J. D.; Scheier, P.; Märk, T. D.; Čížek, M.; Kolorenč, P.; Horáček, J.: Dissociative electron attachment to HBr: A temperature effect Phys. Rev. A  75 (2007) DOI
25. Horáček, J.; Čížek, M.; Houfek, K.; Kolorenč, P.; Domcke, W.: Dissociative electron attachment and vibrational excitation of H-2 by low-energy electrons: Calculations based on an improved nonlocal resonance model. II. Vibrational excitation Phys. Rev. A  73 (2006) DOI
26. Horáček, J.; Hermann, Z.: Fyzik George Jiri Schulz Čs. čas. fyz.. 56 (2006)
27. Kolorenč, P.; Horáček, J.: Dissociative electron attachment and vibrational excitation of the chlorine molecule Phys. Rev. A  74 (2006) DOI
28. Pichl, L.; Li, Y.; Buenker, L. J.; Kimura, M.; Horáček, J.; Schneider, I.: Electronic potential energy of H_{2}^{-} and CHe^{4+} diatomic ions J. Plasma Fusion Res. Ser. 7 (2006)
29. Horáček, J.; Houfek, K.; Čížek, M.; Murakami, I.; Kato, D.; Kato, T.: Calculation of Low-Energy Electron DissociativeAttachment of Molecular Hydrogen for plasma applications J. Plasma Fusion Res. Ser. 7 (2006)
30. Horáček, J.; Čížek, M.; Kolorenč, P.; Domcke, W.: Isotope effects in vibrational excitation and dissociative electron attachment of DCl and DBr Eur. Phys. J. D  35 (2005) DOI
31. Kolorenč, P.; Brems, V.; Horáček, J.: Computing resonance positions, widths, and cross sections via the Feshbach-Fano R -matrix method: Application to potential scattering Phys. Rev. A  72 (2005) DOI
32. Golser, R.; Gnaser, H.; Kutschera, W.; Priller, A.; Steier, P.; Wallner, A.; Čížek, M.; Horáček, J.; Domcke, W.: Experimental and Theoretical Evidence for Long-Lived Molecular Hydrogen Anions H^{-}_{2} and D^{-}_{2} Phys. Rev. Lett. 94 (2005) DOI
33. Horáček, J.: Rezonanční srážky elektronů s molekulami Čs. čas. fyz.. 55 (2005)
34. Horáček, J.; Čížek, M.; Houfek, K.; Kolorenč, P.; Domcke, W.: Dissociative electron attachment and vibrational excitation of H2 by low-energy electrons: Calculations based on an improved nonlocal resonance model Phys. Rev. A  70 (2004) DOI
35. Živanov, S.; Čížek, M.; Horáček, J.; Allan, M.: Electron spectra for associative detachment in low-energy collisions of Cl- and Br- with H and D J. Phys. B: At. Mol. Phys. 36 (2003) DOI
36. Čížek, M.; Horáček, J.; Allan, M.; Fabrikant, I. I.; Domcke, W.: Vibrational excitation of hydrogen fluoride by low-energy electrons: theory and experiment J. Phys. B: At. Mol. Phys. 36 (2003) DOI
37. Pichl, L.; Horáček, J.; Mitin, V.; Ryzhii, V.: Tunneling effects and electron transport in quantum dot structures Physica E  18 (2003) DOI
38. Horáček, J.; Čížek, M.; Houfek, K.; Kolorenč, P.; Pichl, L.: Resonance contribution to low-energy electron collisions with molecular hydrogen Nukleonika 48 (2003)
39. Pichl, L.; Schmitt, L. M.; Ryzhii, V.; Kimura, M.; Horáček, J.: Tunnelling effects in concentric disk quantum dots: discrete - discrete and discrete - continuum limits phys. status solidi 0 (2003) DOI
40. Houfek, K.; Čížek, M.; Horáček, J.: Calculation of rate constants for dissociative attachment of low-energy electrons to hydrogen halides HCl, HBr, and HI and their deuterated analogs Phys. Rev. A  66 (2002) DOI
41. Živanov, S.; Allan, M.; Čížek, M.; Horáček, J.; Thiel, F. A.; Hotop, H.: Effects of Interchannel Coupling in Associative Detachment: Electron Spectra for H+Cl^{-} and H+Br^{-} Collisions Phys. Rev. Lett. 89 (2002) DOI
42. Čížek, M.; Horáček, J.; Allan, M.; Domcke, W.: Resonances and Threshold Phenomena in Low-Energy Electron Collisions with Hydrogen Halides: New Experimental and Theoretical Results Czech. J. Phys. 52 (2002) DOI
43. Houfek, K.; Čížek, M.; Horáček, J.: Dissociative Attachment of Low-Energy Electrons to Vibrationally Excited Hydrogen Molecules Czech. J. Phys. 52 (2002) DOI
44. Kovačič, M.; Najzar, K.; Horáček, J.: Use of Wavelets in Potential Scattering Problems Czech. J. Phys. 52 (2002) DOI
45. Kolorenč, P.; Čížek, M.; Horáček, J.; Mil'nikov, G.; Nakamura, H.: Study of Dissociative Electron Attachment to HI Molecule by using R-matrix Representation for Green's Function Phys. Scr. 65 (2002) DOI
46. Mil'nikov, G. V.; Nakamura, H.; Horáček, J.: Stable and efficient evaluation of Green's function in scattering problem Comput. Phys. Commun. 135 (2001) DOI
47. Čížek, M.; Horáček, J.; Sergenton, A.-C.; Popović, D. B.; Allan, M.; Domcke, W.; Leininger, T.; Gadea, F. X.: Inelastic low-energy electron collisions with the HBr and DBr molecules: Experiment and theory Phys. Rev. A  63 (2001) DOI
48. Čížek, M.; Horáček, J.; Thiel, F. A. U.; Hotop, H.: Associative detachment in low-energy collisions between hydrogen atoms and atomic halogen anions J. Phys. B: At. Mol. Phys. 34 (2001)
49. Horáček, J.: Resonance electron molecule collisions Few-Body Syst. Suppl. 13 (2001)
50. Polášek, M.; Juřek, M.; Ingr, M.; Čársky, P.; Horáček, J.: Discrete momentum representation of the Lippmann-Schwinger equation and its application to electron-molecule scattering Phys. Rev. A  61 (2000) DOI
51. Čížek, M.; Horáček, J.; Meyer, H.-D.: Schwinger-Lanczos algorithm for calculation of off-shell T -matrix elements and Wynn's epsilon algorithm Comput. Phys. Commun. 131 (2000) DOI
52. Ingr, M.; Polášek, M.; Čársky, P.; Horáček, J.: Discrete momentum representation method for polar molecules: Calculation of the elastic electron scattering on the H_{2}O molecule Phys. Rev. A  62 (2000) DOI
53. Pichl, L.; Nakamura, H.; Horáček, J.: Complete reflection in two-state crossing and noncrossing potential systems J. Chem. Phys. 113 (2000) DOI
54. Allan, M.; Čížek, M.; Horáček, J.; Domcke, W.: LETTER TO THE EDITOR: Electron scattering in cooled HCl: boomerang structures and outer-well resonances in elastic and vibrational excitation cross sections J. Phys. B: At. Mol. Phys. 33 (2000) DOI
55. Pichl, L.; Nakamura, H.; Horáček, J.: Analytical treatment of singular equations in dissociative recombination Comput. Phys. Commun. 124 (2000) DOI
56. Čížek, M.; Horáček, J.; Domcke, W.: Associative detachment, dissociative attachment, and vibrational excitation of HCl by low-energy electrons Phys. Rev. A  60 (1999) DOI
57. Čížek, M.; Horáček, J.; Domcke, W.: Nuclear dynamics of the H? collision complex beyond the local approximation: associative detachment and dissociative attachment to rotationally and vibrationally excited molecules J. Phys. B: At. Mol. Phys. 31 (1998) DOI
58. Horáček, J.; Čížek, M.; Domcke, W.: Generalization of the nonlocal resonance model for low-energy electron collisions with hydrogen halides: the variable threshold exponent Theor. Chem. Acc. 100 (1998) DOI
59. Čížek, M.; Horáček, J.: CORRIGENDUM: On shooting methods for calculation of potential resonances J. Phys. A: Math. Gen. 30 (1997) DOI
60. Gemperle, F.; Horáček, J.: Threshold peak structures in the vibrational excitation of HCl by low-energy electron impact Czech. J. Phys. 47 (1997) DOI
61. Horáček, J.; Domcke, W.; Nakamura, H.: Electron attachment and vibrational excitation in hydrogen iodide: calculations based on the nonlocal resonance model Z. Phys. D  42 (1997)
62. Horáček, J.; Gemperle, F.; Meyer, H.-D.: Calculation of dissociative attachment of electrons to diatomic molecules by the Schwinger-Lanczos approach J. Chem. Phys. 104 (1996) DOI
63. Horáček, J.; Domcke, W.: Calculation of cross sections for vibrational excitation and dissociative attachment in electron collisions with HBr and DBr Phys. Rev. A  53 (1996) DOI
64. Pichl, L.; Horáček, J.: LETTER TO THE EDITOR: Analytical treatment of the Green function singularity in integral equations of scattering theory J. Phys. A: Math. Gen. 29 (1996) DOI
65. Čížek, M.; Horáček, J.: On shooting methods for calculation of potential resonances J. Phys. A: Math. Gen. 29 (1996) DOI
66. Čížek, M.; Horáček, J.: Resonances in low-energy rare-gas atom scattering Czech. J. Phys. 46 (1996) DOI
67. Horáček, J.; Domcke, W.: Calculation of dissociative electron attachment and vibrational excitation cross-section of HBr Chem. Phys. Lett. 234 (1995) DOI
68. Horáček, J.: Application of the Schwinger-Lanczos method to the calculation of dissociative attachment of electrons to diatomic molecules J. Phys. B: At. Mol. Phys. 28 (1995) DOI
69. Horáček, J.; Kolb, D.: Schwinger-Lanczos approach to solving scattering equations Z. Phys. D  33 (1995) DOI
70. Horáček, J.; Zejda, L.; Queen, N.~M.: Comparative study of methods for the construction of Padé approximants of type III Comput. Phys. Commun. 74 (1993) DOI
71. Horáček, J.; Zejda, L.: Sturmian functions for nonlocal interactions Czech. J. Phys. 43 (1993) DOI
72. Horáček, J.; Maxera, D.; Zejda, L.: On the use of Lanczos sigma factors for separable approximation of non-local exchange forces J. Phys. B: At. Mol. Phys. 25 (1992) DOI
73. Krasnopolsky, V. M.; Kukulin, V. I.; Kuznetsova, E. V.; Horáček, J.; Queen, N. M.: Energy-dependent phase-shift analysis of $H2$$+4$He scattering in the energy range 0.87-5.24 MeV Phys. Rev. C  43 (1991) DOI
74. Meyer, H.-D.; Horáček, J.; Cederbaum, L.~S.: Schwinger and anomaly-free Kohn variational principles and a generalized Lanczos algorithm for nonsymmetric operators Phys. Rev. A  43 (1991) DOI
75. Horáček, J.; Bok, J.: K-matrix calculation for general nonlocal potentials Comput. Phys. Commun. 59 (1990) DOI
76. Kukulin, V.~I.; Pomerantsev, V.~N.; Horáček, J.: Reconstruction of the potential from scattering data Phys. Rev. A  42 (1990) DOI
77. Kukulin, V.~I.; Krasnopolsky, V.~M.; Kuznetsova, E.~V.; Horáček, J.: Padé-approximant techniques for processing scattering data II. Energy-dependent phase-shift analysis of low-energy^{4}He +^{2}H scattering Czech. J. Phys. 40 (1990) DOI
78. Horáček, J.: Extrapolation technique for solution of scattering integral equations J. Phys. A: Math. Gen. 22 (1989) DOI
79. Krasnopolsky, V.~M.; Kukulin, V.~I.; Horáček, J.: Padé approximant technique for processing scattering data I. Theory, models and parametrization of the scattering data Czech. J. Phys. 39 (1989) DOI
80. Pomerantsev, V.~N.; Popov, A.~M.; Popovicheva, O.~B.; Rakhimova, T.~V.; Horáček, J.: Potential scattering of slow electrons in a weak electromagnetic field J. Phys. B: At. Mol. Phys. 21 (1988) DOI
81. Horáček, J.: Analytic scattering length and critical constants for potential scattering J. Phys. A: Math. Gen. 20 (1987) DOI
82. Horáček, J.: A note on iterative solution of scattering equations Acta Phys. Pol. A  71 (1987)
83. Horáček, J.; Bok, J.; Krasnopolskij, V.~M.; Kukulin, V.~I.: Determination of the deuteron asymptotic D- to S-state ratio by a padé-approximant technique Phys. Lett. B  172 (1986) DOI
84. Horáček, J.; Sasakawa, T.: Method of continued fractions for on- and off-shell t matrix of local and nonlocal potentials Phys. Rev. C  32 (1985) DOI
85. Krasnopolsky, V.~M.; Kukulin, V.~I.; Horáček, J.: Construction of S-matrix from scattering data Czech. J. Phys. 35 (1985) DOI
86. Horáček, J.; Sasakawa, T.: Method of continued fractions with application to atomic physics. II Phys. Rev. A  30 (1984) DOI
87. Horáček, J.; Sasakawa, T.: Method of acceleration for iterative solution of scattering equations with local or nonlocal potential Czech. J. Phys. 34 (1984) DOI
88. Sasakawa, T.; Horáček, J.; Sawada, T.: Three-body reactions for a local potential in coordinate space Phys. Rev. C  27 (1983) DOI
89. Horáček, J.; Sasakawa, T.: Method of continued fractions with application to atomic physics Phys. Rev. A  28 (1983) DOI
90. Sasakawa, T.; Horáček, J.: Low-energy phaseshift formula for e^{+or-}-atom elastic scattering J. Phys. B: At. Mol. Phys. 15 (1982) DOI
91. Sasakawa, T.; Horáček, J.; Sawada, T.: Some Preliminary Studies for Treating the Three-Body Scattering Problems Sci. Rep. Tohoku Univ. Ser. 8 1 (1980)
92. Sasakawa, T.; Horáček, J.: A Perturbative Approach to Scattering Problems with Short and Long Range Potentials Sci. Rep. Tohoku Univ. Ser. 8 1 (1980)
93. Malát, V.; Horáček, J.: Space-charge limitation of secondary electron emission Czech. J. Phys. 28 (1978) DOI
94. Horáček, J.; Malina, L.: Cubic splines and the Lippmann-Schwinger equation Czech. J. Phys. 27 (1977) DOI
95. Kvasnica, J.; Horáček, J.: Bremsstrahlung of hot quantum plasma Czech. J. Phys. 25 (1975) DOI
96. Horáček, J.: A iterative method of bound state energy calculation Czech. J. Phys. 25 (1975) DOI
97. Horáček, J.: A generalization of variable phase equation Czech. J. Phys. 23 (1973) DOI