Research
Multi-electron atomic theory, spectroscopy.
Modelling of contemporary atomic theory problems based on usual and symbolic programming.
Research projects
- 2018–2020 the Research Council of Lithuania, Joint Lithuanian-Japanese Project “Theoretical Studies of Structure and Properties of Heavy Elements Toward Identification of Gravitational Wave Sources” (No. S-LJB-18-1).
- 2018 National Institute for Fusion Science (Japan), the project “Database Development for Lanthanides towards Observation of Gravitational Wave Sources and Elucidation of the Origin of Heavy Elements in the Universe”.
- 2018–2018 the Wenner-Gren foundation (Sweden), the project “Atomic Interactions for Plasma Diagnostics and Fundamental Physics”.
- 2017 the National Institute of Standards and Technology (USA), Scientific Program G- 3 -00334 of the Atomic Physics Division; research area code (according to NIST) 40.0810.
- 2016–2018 National Institute for Fusion Science (Japan), the project “Construction of Atomic Data and Radiative Transfer Simulations toward Identification of Gravitational Wave Sources and the Origin of Heavy Elements”.
- 2015 the National Institute of Standards and Technology (USA), Scientific Program G- 3 -00334 of the Atomic Physics Division; research area code (according to NIST) 40.0810.
- 2013 the project of National Institute for Fusion Science (Japan).
- 2012–2015 Lithuania Research Council, the project “Research of tungsten ions fusion spectra”, VP1-3.1.-ŠMM-07-K-02-015.
- 2011–2013 Project No. 1 of Lithuania- Valonia (Belgium).
- 2011–2012 European Commission, the project ADAS-EU.
- 2011 the National Institute of Standards and Technology (USA), Scientific Program G- 3 -00334 of the Atomic Physics Division; research area code (according to NIST) 40.0810.
- 2010–2013 VISBY (Sweden, Lithuania and Poland) project “Computational Atomic Structure with Applications to Astronomy and Plasma Physics”.
- 2009–2010 International project “Theoretical Studies of Spectroscopic Properties of Superheavy Atoms and Ions with Atomic Number Z=122” (Service Contract No 211828-11-2008 KAR LT). The main results: the spectrum of Z=122 element was theoretically investigated using the multiconfigurational Hartree and Fock method.
- 2008 International project “Theoretical Studies of Curium and Americium Compounds” between Institute for Transuranium Elements (ITU) of the EU Joint Research Centre and Vilnius University. Contract No. 209692-2007-12 F1ED KAR LT. The main results: the main spectroscopic properties of Cm(+4) and Am(+3) ions were theoretically investigated.
- 2007–2013 the project EUROATOM/LEI of FP7 EUROATOM program Nr. FU-CT-2007-0044.
- 2005 the National Institute of Standards and Technology (USA), scientific Program G- 3 -00334 of the Atomic Physics Division; research area code (according to NIST) 40.0810.
- 2004 Deutscher Akademische Austauschdienst (DAAD), the project “Theoretical Studies of the Hyperfine Interaction in Many-Electron Atoms” with colleagues from Kassel University.
- 1994–1996 The EU Research Network Project “The Interactions of Electrons and Photons with Atoms, Ions and Molecules” (Euronet Pecam ERBCIPDCT 940025).
- 1993–1995 International Science Foundation Project (grants LE800 and LH8100).
- 1993 The project “The Study of Correlation Effects of Complex Atoms and Ions Using a Relativistic Version of the Perturbation Theory” (Grant No. 1935) within the framework of International European Community project “Cooperation with Central and Eastern Europe in Science and Technologies”.
Publications
NASA ADS list of publications
Most cited publications:
- Jönsson, P.; Gaigalas, G.; Bieron, J.; et al., “New version: GRASP2K relativistic atomic structure package”. COMPUTER PHYSICS COMMUNICATIONS, 2013 184. 2197.
- Fischer, C.F.; Tachiev, G.; Gaigalas, G.; et al., “An MCHF atomic-structure package for large-scale calculations”. COMPUTER PHYSICS COMMUNICATIONS, 2007 176. 559.
- Fischer, C.F.; Godefroid, M.; Brage, T.; Jönsson, P.; Gaigalas, G., “Advanced multiconfiguration methods for complex atoms: I. Energies and wave functions”. JOURNAL OF PHYSICS B, ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2016 49. 182004.
- Fritzsche, S.; Fischer, C.F.; Gaigalas, G., “RELCI: A program for relativistic configuration interaction calculations”. COMPUTER PHYSICS COMMUNICATIONS, 2002 148. 103.
- Gaigalas, G.; Rudzikas, Z.; Fischer, C.F., “An efficient approach for spin-angular integrations in atomic structure calculations”. JOURNAL OF PHYSICS B, ATOMIC MOLECULAR AND OPTICAL PHYSICS. 1997 30. 3747.
Other activities
Expert activities
- Board member of international research group “The International Collaboration on Computational Atomic Structure” (http://ddwap.mah.se/tsjoek/compas/).
- 2015–2017 Chairman of Council, Institute of Theoretical Physics and Astronomy, Vilnius University.
- 2010–2017 Member of Council, Institute of Theoretical Physics and Astronomy, Vilnius University.
- 2008 Chairman of Habilitation Commission of Dr. A. Kiveris (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2007 Member of Habilitation Procedure Committee of Dr. Palmira Pečiuliauskienė (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2004–2008 Expert of Study Programs in Physics, Quality Assessment Center of Lithuania.
- 2004 Chairman of Habilitation Commission of Dr. R. Vaišnoras (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2003–2008 Expert of Lithuanian Council of Science.
- 2003–2008 Member of the Committee “Cooperation of Business, Education and Training” of Lithuanian Council of Science.
- 1997–2002 Member of Scientific Board, Institute of Theoretical Physics and Astronomy.
- 1997–2002 Member of Self-assessment Commission, Institute of Theoretical Physics and Astronomy.
- 1991–1993 Scientific Secretary, Lithuanian Society of Physics.
Editorial board member of the journal Atoms (https://www.mdpi.com/journal/atoms/editors)
Reviewer of the following journals:
- The Astrophysical Journal Supplement Series,
- The European Physical Journal D,
- Materials Chemistry and Physics,
- Canadian Journal of Physics,
- Acta Physica Polonica A,
- Atoms,
- Atomic Data and Nuclear Data Tables,
- Computer Physics Communications.
Organization of conferences and meetings:
- Committee member of the 43rd Lithuanian National Conference of Physics (Kaunas, Lithuania, 3 October – 5 October 2019).
- International Seminar “Research into opacity of neutron star mergers” (Vilnius, Lithuania, 1 September – 5 September 2019).
- International Seminar “Research into opacity of neutron star mergers” (Vilnius, Lithuania, 26 August – 2 September 2018).
- Committee member of the 42nd Lithuanian National Conference of Physics (Vilnius, Lithuania, 4 October – 6 October 2017).
- International seminar on atomic theory problems (Vilnius, Lithuania, 21 May – 25 May 2012).
- International seminar “GRASP Meeting'11” (Vilnius, Lithuania, July 31 – August 12, 2011).
- International seminar “GRASP Meeting'10” (Vilnius, Lithuania, September 19–21, 2010).
- International seminar “Frontiers in Relativistic Multiconfiguration Calculations” (Vilnius, Lithuania, September 17–23, 2009).
- Member of the local organizing committee of XXXII European Group for Atomic Systems (EGAS) conference (Vilnius, Lithuania. July 4–7, 2000).
Study materials and teaching
Coarse books:
- Jonauskas, V., Gaigalas, G. (2012). Atomo ir branduolio fizikos uždavinynas. (Tasks in Atomic and Nuclear Physics). Vilnius: LEU.
- Lapeika, V., Gaigalas, G. (2011). Atomo ir branduolio fizikos laboratoriniai darbai (Labs in Atomic and Nuclear Physics). Vilnius: VPU.
- Audzijonis, A., Gaigalas, G., Žigas, L., Žaltauskas, R., Tamulienė, E., Pauliukas, A. (2007). Fizikinis eksperimentas Kietojo kūno optikos mokslinėje laboratorijoje (Physical Experiment in Research Laboratory of Solid Body Optics). Vilnius: VPU.
- Gaigalas, G., Audzijonis, A., Lapeika, V. (2004). Jonizuojančios spinduliuotės tyrimas (Research in Ionized Radiation). Vilnius: Valga.
- Audzijonis, A., Gaigalas, G., Kalibata, G., Paulikas, V. (2003). Optikos laboratoriniai darbai (Labs in Optics). Vilnius: Gilija.
Teaching at BSc level
- 2001–2012 A course “General Physics: Atomic and Nuclear Physics” (3 ECTS) (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
Teaching at MSc level:
- 2018 – A course “Theory of Atoms” (2.5 ECTS) (Vilnius University).
- 2008–2013 A course “Quantum Chemistry” (4 ECTS) (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2010–2013 A course “Theory of Atoms and Molecules” (4 ECTS) (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2008–2013 A course “Symbolic Programming in Theoretical Physics and Astrophysics” (3 ECTS) (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
Teaching at PhD level:
- 2005–2017 A course “Analytical Calculations Using Computer Algebra Systems” (5 ECTS) (Vilnius University, Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2005–2017 A course “Second Quantization, Quasispin and Isospin in the Theory of an Atom” (5 ECTS) (Vilnius University).
- 2005–2013 A course “Calculations of Atomic Characteristics” (5 ECTS) (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2005–2013 A course “Theoretical Spectroscopy of Atoms (5 ECTS) (Vilnius University, Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
Academic advising
BSc and MSc studies
- 2017 Academic advisor of Giedrė Stankūnaitė’s BSc thesis “Theoretical Xe I energy structure study” of (Faculty of Physics, Vilnius University), (12 credits, 320 hours).
- 2017 Academic advisor of Donatas Liupševičius’s BSc thesis “The dependence of energy spectra of Si+ and Ti+ ions on constant of hyperfine structure“.(Faculty of Physics, Vilnius University), (12 credits, 320 hours).
- 2016–2017 Academic advisor of Donatas Liupševičius’s course paper “Theoretical research of Si+ and Ti+ ions energy spectra“.of (Faculty of Physics, Vilnius University), (15 credits, 400 hours).
Supervision of students’ research internships:
- 15 October 2010 – 2 January 2011 and 24 January 2011 –10 March 2011, Supervision of the 1st year MSc student A. Petryla’s research internship “Development of GRASP2K, ATSP2K packages for theoretical investigations of W ions” (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 29 June – 31 August 2010, Supervision of the 1st year MSc student A. Alkauskas’s research internship “Theoretical investigation of W ions with open f shells” (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 2 February – 31 May 2010, Supervision of the 1st year MSc student A. Alkauskas’s research internship “Theoretical investigation of spectroscopic properties of W24+ ions” (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 15 July – 15 September 2009, Supervision of the 3rd year BSc student E. Gaidamauskas’s research internship “Theoretical investigation of Ra electric dipole moment created by Schiff moment” (Vilnius University).
- 15 July –15 September 2009, Supervision of the 4th year BSc student A. Alkauskas’s research internship “Theoretical investigation of Eka-Tori (Z=122) spectroscopic properties” (Lithuanian University of Educational Sciences, formerly Vilnius Pedagogical University).
- 9 October – 8 November 2008, Supervision of the 2nd year BSc student E. Gaidamauskas’s research internship “Generalization of Multiconfiguration Dirac-Hartree-Fock method for investigation of Schiff moment interaction” (Vilnius University).
- 2 July - 31 August 2007, Supervision of the 1st year BSc student E. Gaidamauskas’s research in ternship “Generalization of Multiconfiguration Dirac-Hartree-Fock method for investigation of parity and time non-conservation” (Vilnius University).
PhD studies:
- L. Radžiūtė. 2016 (academic advisor, Vilnius University, Lithuania).
- J. Grumer. 2016 (consultant, Lund University, Sweden).
- P. Rynkun. 2013 (academic advisor, Vilnius University, Lithuania).
- O. Sharf. 2006 (consultant, Vilnius University, Lithuania).
- T. Žalandauskas. 2004 (consultant, Vilnius Pedagogical University, Lithuania).
Teaching abroad
- Lectures and seminars in Malmo University (Sweden) on Erasmus exchange program.
About myself
Education
Dr. Habil. 2001. Institute of Theoretical Physics and Astronomy. (ITPA VU) Vilnius. Lithuania
PhD. 1989. Institute of Physics. Vilnius. Lithuania
MSc. 1982. Vilnius University. Vilnius. Lithuania
Positions held at the Institute of Theoretical Physics and Astronomy of Vilnius University
2002 – Present. Chief Researcher.
1992–2002 Senior Research Fellow.
1989–1992 Research Fellow.
1984–1989 Junior Research Fellow.
1982–1984 Assistant Researcher.
Positions held at other institutions
2005–2014 Professor, Department of General Physics, Lithuanian University of Educational Sciences (formerly Vilnius Pedagogical University).
2003–2011 Head of Department, Department of General Physics, Lithuanian University of Educational Sciences (formerly Vilnius Pedagogical University).
2002–2005 Acting Professor, Department of General Physics, Lithuanian University of Educational Sciences (formerly Vilnius Pedagogical University).
1998–2002 Lecturer, Department of General Physics, Lithuanian University of Educational Sciences (formerly Vilnius Pedagogical University).
Long-term research visits, research work at other research centers
- 9 May – 8 June 2018, Guest Professor, National Institute for Fusion Science, Japan.
- 15 January – 14 March 2018, Guest Researcher, Malmö University, Sweden.
- 15 September – 15 November 2017, Guest Researcher, National Institute of Standards and Technology, USA.
- 5 October – 4 December 2015, Guest Researcher, National Institute of Standards and Technology, USA.
- 1 September – 27 December 2013, Guest Researcher, National Institute for Fusion Science, Japan.
- 31 October – 3 December 2011, Guest Researcher, Lund University, Sweden.
- 1 April – 30 June 2011, Guest Researcher, National Institute of Standards and Technology, USA.
- 8 May – 7 June 2007, Guest Researcher, Lanzhou Northwest Normal University, China.
- 5 September – 5 December 2005, Guest Researcher, National Institute of Standards and Technology, USA.
- 25 June – 31 August 2005, Guest Researcher, Kassel University, Germany.
- 5 July – 5 September 2004, Guest Researcher, Kassel University, Germany.
- 4 June – 4 September 2002, Guest Researcher, Kassel University, Germany.
- 12 August 1999 – 12 August 2000, Guest Researcher, Kassel University, Germany.
- 15 September – 15 December 1997, Guest Researcher, Vanderbilt University, Nashville, USA.
- 17 September – 12 December 1996, Guest Researcher, Vanderbilt University, Nashville, USA.
- 1 September – 30 December 1995, Guest Researcher, Universite Libre De Bruxelles, Belgium.
- 5 January – 30 March 1994, Guest Researcher, Vanderbilt University, Nashville, USA.
Short-term research visits, research work at other research centers
- 17 November – 1 December 2019 ULB University, Belgium.
- 2 November – 11 November 2019 National Institute for Fusion Science, Japan.
- 22 July – 28 July 2019 Fudan University Shanghai, China.
- 28 April – 4 May 2019 Malmö University, Sweden.
- 30 November – 12 December 2018 Institute of Applied Physics and Computational Mathematics, China.
- 14 November – 23 November 2018 National Institute for Fusion Science, Japan.
- 21 October – 28 October 2018 Lanzhou Northwest Normal University, China.
- 9 September – 15 September 2018 Malmö University, Sweden.
- 18 August – 22 August 2017 Lund University, Sweden.
- 22 January – 4 February 2017 National Institute for Fusion Science, Japan.
- 29 May – 4 June 2015 Lund University, Sweden.
- 17 May – 23 May 2015 Lund University, Sweden.
- 22 March – 28 March 2015 University of Cracow, Poland.
- 7 September – 13 September 2014 Lund University, Sweden.
- 5 May – 11 May 2014 University of Cracow, Poland.
- 9 August – 12 August 2013 Lund University, Sweden.
- 3 June – 9 June 2013 University of Cracow, Poland.
- 18 March – 29 March 2013 National Institute for Fusion Science, Japan.
- 9 December – 15 December 2012 University of Cracow, Poland.
- 15 October – 19 October 2012 ULB University, Belgium.
- 11 June – 15 June 2012 Malmö University, Sweden.
- 30 March – 5 March 2012 University of Cracow, Poland.
- 6 February – 13 February 2012 ULB University, Belgium.
Awards
- 2018 Vilnius University Rector's science award.
- 2014 The Research Award of the Lithuanian Academy of Sciences 2013 in the field of physics for the series of works “Development and Application of Methods in Atomic Theory (1998-2012)” together with colleagues Prof. P. Bogdanovic and Dr. A. Kupliauskienė from Institute of Theoretical Physics and Astronomy of Vilnius University.
- 2007 The Title of Guest Professor of Lanzhou Northwest Normal University (China).
- 2005 The Letter of Appreciation from the President of Lithuania.
- 2004 The Letter of Appreciation from the Parliament of the Republic of Lithuania “For the genuine work of engaging students in research and training them for the National Competition of Young Scientists”.
- 2004 The Letter of Appreciation from Lithuanian Ministry of Education and Science “For good preparation of students for the National Competition of Young Scientists”.
- 1991 The Prize from the Lithuanian Academy of Sciences for the best young scientist work of 1990 “The Tensor Form of Stationary Perturbation Theory and its Application to the Atoms and Ions which Have Open Shells” in the fields of mathematics, physics and chemistry.
- 1991 A State Scholarship of a Young Scientist.