2025
  
- R. Arita
 "Multiferroic collinear antiferromagnets with hidden altermagnetic spin splitting"
 International Symposium on Spintronics with Antiferromagnets and Altermagnets
 October 6-10, 2025, Hakone, Japan
 
- R. Arita
 "Flat band physics in functional Kagome magnets"
 Flat Bands: Frustration and Correlation Physics
 September 10-12, 2025, Center for Computational Quantum Physics, Flatiron Institute, USA
- R. Arita
 "Ab initio exploration of functional magnetic materials based on cluster multipole theory"
 Psi-k conference 2025
 August 25-28, 2025, SwissTech Convention Center, EPFL, Lausanne, Switzerland
- R. Arita
 "Ab initio modelling of unconventional superconductors"
 NCTS Physics one-day workshop on ab initio approaches to novel properties of high temperature superconductors
 July 9, 2025, National Center for Theoretical Sciences, Taipei, Taiwan
- R. Arita
 "Magnetic structure prediction for functional magnets"
 37th Annual Workshop on Recent Developments in Electronic Structure Methods
 June 8-11, 2025, El Paso, Texas, USA
- R. Arita
 "Ab initio calculation of coherence length based on superconducting density functional theory"
 CEMS Symposium on Emergent Quantum Materials 2025
 May 19-21, 2025, Wako
- R. Arita
 "Development of ab initio methods for topological Hall effects in magnets with multiple-Q orderings"
 APS Global Physics Summit
 March 16-21, 2025, Anaheim, USA

2024
- R. Arita
 "First-principles study on topological Hall effect in magnets with non-coplanar magnetic order"
 CREST-EPiQS International Workshop 2024
 December 2-6, 2024, Kyoto
- R. Arita
 "First-principles study on topological Hall Effect in CoTa3S6 with Non-Coplanar Magnetic Order"
 APW-RIKEN-Tsinghua-Kavli workshop "Highlights on condensed matter physics"
 November 1-3, 2024, Wako
- R. Arita
 "Topological Hall effect in magnets with non-coplanar magnetic order"
 The 25th Asian Workshop on First-Principles Electronic Structure Calculations (ASIAN-25)
 October 28-30, 2024, Ulsan
- R. Arita
 "Ab initio structural optimization at finite temperatures based on anharmonic phonon theory"
 Recent Progress in Many-body Theories (RPMBT22)
 September 23-27, 2024, Tsukuba
- R. Arita
 "Flat-band ferromagnetism in permanent ferrmagnets"    
QUAST - international conference
 September 10-12, 2024, Dresden, Germany
- R. Arita
 "Fermi surface expansion in correlated metals with strong ferromagnetic fluctuations"
 70 years of the Tanabe-Sugano diagrams
 September 10-12, 2024, Tokyo
- R. Arita
 "Coherence length and penetration depth in strongly correlated multi-orbital superconductors"
 Computational Quantum Many-Body Theory
 July 17-19, 2024, Seoul
- R. Arita
 "Ab initio modelling of superconductors"
 CEMS Research Camp
 March 1-2, 2024, Saitama
- R. Arita
 "Coherence length and penetration depth in strongly correlated multi-orbital superconductors"
 CEMS Symposium on Emergent Quantum Materials 2024
 February 20-24, 2024, Tokyo
- R. Arita
 "Fermi surface expansion in correlated metals with strong ferromagnetic spin fluctutations: A cDMFT and DΓA study"
 DMFT-QE Symposium
 February 5, 2024, Online (Zoom Meeting)

    
2023
- R. Arita
 "Optimizing Superconductivity:Ab initio Materials Design of Nickelate and Palladate Superconductors"
 Advanced Materials Research Grand Meeting MRM2023 IUMRS-ICA2023
 December 11-16, 2023, Kyoto
- R. Arita
 "High-throughput material search for functional antiferromagnets"
 QUAST (Forschergruppe 5249) colloquium
 October 17, 2023, Online
- R. Arita
 "Disentangling spin-orbit-free effects in emergent electromagnetism: Symmetry analysis with spin crystallography groups"
 The Asia-Pacific workshop on strongly correlated systems
 September 22-24 2023, Beijing, China
- R. Arita
 "First-principles Materials Design of Nickelate and Palladate Superconductors"
 International Workshop on Strongly Correlations and Angle-Resolved Photoemission Spectroscopy
 September 10-15 2023, Beijing, China
- R. Arita
 "Magnetic structure prediction and its application to high-throughput search for functional magnets"
 CCP2023 - 34th IUPAP Conference on Computational Physics
 August 4-8 2023, Kobe, Japan
- R. Arita
 "Exploration of short-pitch skyrmion materials based on first-principles modeling"
 International Conference on Strongly Correlated Electron Systems 2023
 July 2-7 2023, Incheon, Korea
- R. Arita
 "Ab initio structural optimization at finite temperatures based on anharmonic phonon theory"
 Functional Transition Metal Oxides by Design
 March 15 2023, Tokyo Inst. Tech., Yokohama, Japan
- R. Arita
 "Ab initio magnetic structure prediction for topological magnets"
 APS March Meeting 2023
 March 5-10 2023, Las Vegas, US

  
2022
- R. Arita
 "First-principles study of superconductivity in superhydrides under high pressure"
 Spectroscopies of Novel Superconductors (SNS) 2022
 December 12-16 2022, Bangalore, India
- R. Arita
 "Recent advances in DFT calculations of topological magnetic materials"
 Topology in Magnetic Materials
 November 22-24 2022, Herzberg, Switzerland
- R. Arita
 "Ab initio meterial search for functional antiferromagnets based on cluster multipole theory"
 RIKEN-Tsinghua-Kavli One-day Workshop on Condensed Matter Physics
 October 21 2022, Online (Zoom Meeting)
- R. Arita
 "First-principles calculation of Tc for conventional and unconventional superconductors"
 JLU global lectures
 August 16 2022, ICCMS, Jilin University, China
- R. Arita
 "First-principles study on superconductivity in d9 correlated electron systems"
 International Workshop on Recent Progress in Superconductivity
 August 9-11 2022, Yongpyong, Korea
- R. Arita
 "Ab initio study on superconductivity in hydrides"
 IUPAP Conference on Computational Physics
 August 1-4 2022, Online (Zoom Meeting)
- R. Arita
 "Quantum and temperature effects on crystal structure of LaH10"
 Challenges in designing room temperature superconductors
 July 26-29 2022, L'Aquila, Italy
- R. Arita
 "Pressure-Temperature phase diagram of LaH10"
 Mechanisms of superconductivity
 July 25-27 2022, New York, USA
- R. Arita
 "Path integral molecular dynamics study on the P-T phase diagram of LaH10"
 Superstripes 2022
 June 20-24 2022, Rome, Italy
- R. Arita
 "Wannier-based ab initio methods for correlated materials"
 Wannier 2022 Summer School
 June 16-20 2022, Trieste, Italy
- R. Arita
 "Cluster multipole theory for functional antiferromagnets"
 International Symposium on Frontier of Materials Science
 January 7 2022 Online (Zoom meeting)

2021
- R. Arita
 "First-principles study on high Tc superconductivity in superhydrides under high pressures"
 Materials Research Meeting 2021
 December 13-December 17 2021, Yokohama, Japan
- R. Arita
 "Ab initio Migdal-Eliashberg study on high Tc superconductivity in hydrides under high pressure"
 Superconducting Hybrids@Extreme
 June 28-July 2 2021 Online (Zoom meeting)
- R. Arita
 "Quantum Effects in Superhydrides Under High Pressures"
 Quantum Matter Seminar, Ohio State Univ.
 April 20, 2021 Online (Zoom meeting)
- R. Arita
 "Quantum Effects in Superhydrides Under High Pressures"
 Quantum Materials Symposium 2021 (QMS2021)
 March 1-5, 2021 Online (Zoom meeting)
2020
- R. Arita
 "Superconducting Hydrides Under high Pressure"
 International Conference on Fugaku project Emergence and Functionality of Quantum Matter 2020
 October 20, 2020 Online (Zoom meeting)
- R. Arita
 "Formation mechanism of helical Q structure in Gd-based skyrmion materials: A first-principles study"
 APW-RIKEN-Tsinghua-Kavli workshop "Highlights on condensed matter physics"
 September 2-4, 2020 Online (Zoom meeting)
- R. Arita
 "Ab initio Eliashberg study on anharmonicity, zero-point motion, and retardation effect in superhydrides"
 Winter Conference "Quantum Matter: Computation Meets Experiment"
 March 8-14, 2020, Aspen, USA
- R. Arita
 "Quantum crystal structure in the 250-kelvin superconducting lanthanum hydride"
 International Symposium on HYDROGENOMICS
 January 7-9, 2020, Sapporo, Japan
2019
- R. Arita
 "Topological superconductivity in elemental hcp thallium"
 Materials Research Meeting 2019
 December 10-14, 2019, Yokohama, Japan
- R. Arita
 "Quantum crystal structure in the 250-kelvin superconducting lanthanum hydride"
 APW 2019 & Tsinghua-RIKEN-KITS Joint Workshop
 December 6-8, 2019, Beijing, China
- R. Arita
 "Cluster multipole dynamics in non-collinear antiferromagnets"
 SPICE workshop on "Antiferromagnetic Spintronics: from topology to neuromorphic computing"
 October 7-10, 2019, Mainz, Germany
- R. Arita
 "Cluster multipole dynamics in non-collinear antiferromagnets"
 International Conference on Strongly Correlated Electron Systems
 September 23-28, 2019, Okayama, Japan
- R. Arita
 "Ab-initio modeling of non-collinear antiferromagnets"
 International conference AMM-2019 "Ab-initio modeling of advanced materials"
 September 10-13, 2019, Ekaterinburg, Russia
- R. Arita
 "Cluster multipole dynamics in non-collinear antiferromagnets"
 Joint European Magnetic Symposia 2019
 August 26-30, 2019, Uppsala, Sweden
- R. Arita
 "Self-Energy Variational Approach to Correlated Electron Systems"
 Research Frontier of Advanced Spectroscopies for Correlated Electron Systems
 June 13-15, 2019, Sendai, Japan
- R. Arita
 "Cluster multipole dynamics in non-collinear antiferromagnets"
 Frontiers of Correlated Electron Sciences 2019 (FCES2019)
 May 29-31, 2019, Tokyo, Japan
- R. Arita
 "Topological superconductivity in elemental hcp thallium"
 CEMS Symposium on Emergent Quantum Materials
 May 22-24, 2019, Tokyo, Japan
- R. Arita
 "Anomalous transverse transport and domain wall motion in non-collinear antiferromagnets"
 Topological Phases and Functionality of Correlated Electron Systems 2019 (TPFC2019)
 February 18-20, 2019, Kashiwa, Japan
- R. Arita
 "Self-energy variational approach to correlated electron systems"
 International CECAM-Workshop: Correlated electron physics beyond the Hubbard model
 February 4-8, 2019, Bremen, Germany
- R. Arita
 "Possible topological superconductivity in elemental thallium"
 The 8th Indo-Japan Seminar: Designing Emergent Materials
 January 31-February 2, 2019, Tokyo, Japan

2018
- R. Arita
 "Anomalous transverse transport and domain wall motion in non-collinear antiferromagnets"
 Kavli ITS-APW-Tsinghua-RIKEN Workshop on "Highlights of Condensed Matter Physics"
 November 1-3, 2018, Beijing, China
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 International Workshop on Computational Design and Discovery of Novel Materials
 September 10-12, 2018, Lausanne, Switzerland
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 12th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors
 August 19-24, 2018, Beijing, China
- R. Arita
 "Anomalous transverse transport in correlated Weyl metals Mn3X"
 Workshop on "Frustration, Orbital Fluctuations, and Topology in Kondo Lattices and their Relatives"
 July 23-27, 2018, Dresden, Germany
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 Conference on Topological and Correlated Electronic Materials (ToCoTronics2018)
 July 23-27, 2018, Wuerzburg, Germany
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 CIMTEC2018: 8th Forum on New Materials
 June 10-14, 2018, Perugia, Italy
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 Workshop on "Quantum many body states"
 April 27-28, 2018, KAIST Daejeon, South Korea
- R. Arita
 "Cluster multipole theory for functional antiferromagnets"
 KPS 2018 Spring Meeting
 April 25-27, 2018, Daejeon, South Korea
- R. Arita
 "Cluster multipole theory for anomalous Hall effect in antiferromagnets"
 APS March Meeting 2018
 March 5-9, 2018, Los Angeles, USA
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 ITF Seminar, IFW Dresden
 Jan 22, 2018, Dresden, Germany

2017
- R. Arita
 "Cluster multipole theory for magneto-optical Kerr effect in antiferromagnets"
 CEMS-Tsinghua-APW joint workshop on "Highlights of condensed matter physics"
 Dec 7-8, 2017, Saitama, Japan
- R. Arita
 "Superconductivity in topological materials: Insights from superconducting density functional theory"
 CEMS Symposium on Trends in Condensed Matter Physics
 November 6-8, 2017, Saitama, Japan
- R. Arita
 "Cluster multipole theory for functional antiferromagnets"
 Wilhelm und Else Heraeus-Seminar on "ab inito electronic structure theory for solids in the 21st century"
 October 30-November 3, 2017, Bonn, Germany
- R. Arita
 "Cluster multipole theory for anomalous Hall effect in antiferromagnets"
 Ab initio Spin-orbitronics
 September 25-September 29, 2017, Pascara, Italy
- R. Arita
 "Pairing mechanism of BiS2 superconductor: A first-principles study"
 International Union of Materials Research Societies: The 15th International Conference on Advanced Materials
 August 27-September 1, 2017, Kyoto, Japan
- R. Arita
 "Cluster Multipole Theory for anomalous Hall effect in antiferromagnets"
 The XXIX IUPAP Conference on Computational Physics (CCP2017)
 July 9-13, 2017, Paris, France
- R. Arita
 "Cluster Multipole Theory for anomalous Hall effect in antiferromagnets"
 Condensed Matter Theory Seminar, Research Institute for Interdisciplinary Science, Okayama Univ.
 April 25, 2017, Okayama, Japan
- R. Arita
 "Emergent phenomena in π-electron systems"
 Spring meeting, the Physical Soceity of Japan
 March 20, 2017, Osaka, Japan
- R. Arita
 "Cluster Multipole Theory for anomalous Hall effect in antiferromagnets"
 March 7, 2017, 
College de France, Paris, France
- R. Arita
 "Cluster Multipole Theory for anomalous Hall effect in antiferromagnets"
 Symposium on Topological Phases and Functionality of Correlated Electron Systems 2017
 February 20-22, 2017, ISSP Chiba, Japan
- R. Arita
 "Post Eliashberg study on high-Tc superconductivity in sulfur hydrides"
 CEMS-QPEC Symposium on Emergent Quantum Materials
 January 18-20, 2017, Tokyo, Japan

2016
- R. Arita
 "First-principles study on high-Tc superconductivity in sulfur hydrides under high pressure"
 International Workshop on Superconductivity
and Related Functional Materials 2016
 December 20-22, 2016, Tsukuba, Japan
- R. Arita
 "First-principles Study of the Iron-based ladder Supercoductor BaFe2S3"
 29th International Symposium on Superconductivity
 December 13-15, 2016, Tokyo, Japan
- R. Arita
 "Ab initio downfolding for spin-continuum models and its application to skyrmion materials"
 Computational methods towards engineering novel correlated materials
 November 24-26, 2016, Lausanne, Switzerland
- R. Arita
 "Effect of negative Hund's coupling in alkali-doped fullerides"
 Conference: What about U ?- Effects of Hubbard Interactions and Hund's coupling in Solids
 November 17-21, 2016, Trieste, Italy
- R. Arita
 "First-principles study on high-Tc superconductivity in sulfur hydrides under high pressure"
 EU-JAPAN Workshop on Computational Materials Design and Realization for Spintronics, Moltronics, Quantronics, Superconductivity and Topotronics
 September 18-30, 2016, Juelich, Germany
- R. Arita
 "Fully non-empirical study on superconductivity in sulfur hydrides under high pressures"
 International Conference Superstripes 2016
 June 23-29, 2016, Ischia, Italy
- R. Arita
 "First-principles study on pressure-induced superconductivity in the iron-based ladder material BaFe2S3"
 Energy Materials Nanotechnology Prague Meeting
 June 21-23, 2016, Prague, Czech Republic
- R. Arita
 "Superconductivity in high temperature superconductivity in light element materials"
 International Symposium on New Horizons in Condensed Matter Physics
 June 18-19, 2016, Tokyo, Japan
- R. Arita
 "Non-empirical post-Eliashberg study on high-Tc superconductivity in HS3"
 1st International Workshop SUPERHYDRIDES  - Towards Room Temperature Superconductivity: Hydrides and More
 May 9-10, 2016, Rome, Italy
- R. Arita
 "Effect of van Hove singularities on high-Tc superconductivity in HS3 under high pressures"
 5th International Conference on Superconductivity and Magnetism 2016
 April 24-30, 2016, Fethiye, Turkey
- R. Arita
 "First-principles study on pressure-induced superconductivity in the iron-based ladder material BaFe2S3"
 Spring meeting, the Physical Soceity of Japan
 March 19, 2016, Sendai, Japan
- R. Arita
 "Large anomalous Hall effect in non-collinear antiferromagnets"
 Anomalous Transport in Multipolar and Topological Materials
 March 11 - March 12, 2016, 
Jonhs Hopkins Univ., Baltimore
- R. Arita
 "Large anomalous Hall effect in non-collinear antiferromagnets"
 Topological Phenomena in Novel Quantum Materials
 February 29 - March 4, 2016, 
MPIPKS, Dresden, Germany
- R. Arita
 "First-principles post-Eliashberg study on high Tc superconductivity in H3S"
 Quantum Materials Symposium 2016
 February 22-26, 2016, 
Muii-do, Seoul, Korea
- R. Arita
 "Ab initio derivation of spin continuum models: Toward materials design of Dzyaloshinskii-Moriya's interaction"
 APW-CEMS joint workshop "Highlights of modern condensed matter physics"
 January 25-27, 2016, 
RIKEN, Saitama, Japan
- R. Arita
 "Spin current formula for Dzyaloshinskii-Moriya's interaction: Ab initio derivation of spin continuum models"
 January 14, 2016, 
College de France, Paris, France
- R. Arita
 "Density functional theory for plasmon-assisted superconductivity"
 Total Energy and Force Methods 2016
 January 11-13, 2016, 
University of Luxembourg, Luxembourg
- R. Arita
 "Materials Design of Dzyaloshinskii-Moriya interaction: from Bulk to Interfaces"
 International USMM & CMSI workshop: Frontiers of materials and correlated electron science - from bulk to thin films and interfaces
 January 5-9, 2016, 
University of Tokyo, Tokyo, Japan

2015
- R. Arita
 "Theoretical study on superconductivity and Mott transition in C60 compounds"
 West Japan Chemistry Forum 2015
 November 15, 2015, 
Okayama University, Okayama, Japan
- R. Arita
 "Control of the Dzaloshinskii-Moriya interaction in Mn1-xFexGe: toward skyrmion crystal engineering"
 KITP workshop on New Phases and Emergent Phenomena in Correlated Materials with Strong Spin-Orbit Coupling
 October 1, 2015, Kavli Institute for Theoretical Physics, 
Santa Barbara
- R. Arita
 "Frontiers in nonempirical calculation of superconducting Tc"
 Autumn meeting, the Physical Soceity of Japan
 September 17, 2015, Osaka, Japan
- R. Arita
 "First-principles study on high Tc superconductivity in sulfur hydrides under high pressure"
 International Conference Superstripes 2015
 June 13-18, 2015, Ischia, Italy
- R. Arita
 "Superconductivity in compressed sulfur hydrides"
 Electronic Structure Approaches & Applications to Quantum Matter
 May 18-21, 2015, Santa Fe, New Mexico, USA
- R. Arita
 "Control of the Dzaloshinskii-Moriya interaction in Mn1-xFexGe: toward skyrmion crystal engineering"
 International Workshop on spin-orbit coupling and magnetism in correlated transition metal oxides
 May 4-7, 2015, Columbus, Ohio, USA
- R. Arita
 Pedagogical tutorial on "Electronic structure of correlated oxides"
 International Workshop on spin-orbit coupling and magnetism in correlated transition metal oxides
 May 3, 2015, Columbus, Ohio, USA
- R. Arita
 "Two-dimensional Valley Electrons and Excitons in 3R MoS2 Multilayers"
 The 9th International Conference on Computational Physics
 January 7-11, 2015, Singapore

2014
- R. Arita
 "First-principles study of the Mott transition and superconductivity in A3C60"
 The 17th Asian Workshop on First-Principles Electronic Structure Calculations
 November 2-5, 2014, Seoul, Korea
- R. Arita
 "First-principles study of the Mott transition and superconductivity in A3C60"
 Workshop on Probing and Understanding Exotic Superconductors
 October 27-31, 2014, ICTP, Trieste, Italy
- R. Arita
 "Non-empirical study of unconventional superconductivity in A3C60: role of electron-phonon coupling and electronic correlations"
 Fall meeting of the Korean Physical Soceity
 October 22-24, 2014, Gwangju, Korea
- R. Arita
 "Fully nonemprical calculation of superconducting transition temeprature in alkali-doped C60 solids"
 Asia-Pacific Workshop on Strongly Correlated Systems
 October 9-11, 2014, Beijing, China
- R. Arita
 "Superconductor-Mott Insulater Transition in Fullerene: Theory"
 Autumn meeting, the Physical Soceity of Japan
 September 7-10, 2014, Nagoya, Japan
- R. Arita
 "First-principles study of the Mott transition and possible unconventional superconductivity in A3C60"
 Computational Science Workshop 2014
 August 20-22, 2014, Tsukuba, Japan
- R. Arita
 "Momentum differentiation enhanced by Hund's coupling: A multi-orbital cluster DMFT study"
 New Horizon of Strongly Correlated Physics (NHSCP2014)
 June 25-27, 2014, Kashiwa, Japan
- R. Arita
 "Density functional theory for plasmon-assisted superconductivity"
 CIMTEC 2014 6th Forum on New Materials
 June 15-19, 2014, Montecatini, Italy
- R. Arita
 "Effect of electron-phonon coupling on unconventional superconductivity: Comparison between iron-based and C60 superconductors"
 EMN Summer Meeting on Energy Materials Nanotechnology
 June 9-12, 2014, Cancun, Mexico
- R. Arita
 "Development of density functional theory for plasmon-assisted superconductivity"
 International Workshop of Computational Nano-Materials Design on Green Energy
 June 1-3, 2014, Osaka, Japan
- R. Arita
 "First-principles study of the Mott transition and superconductivity in A3C60"
 RIKEN-APW joint workshop "Highlights in condensed matter physics"
 January 23-25, 2014, Wako, Japan

2013
- R. Arita
 "Superconducting density functional theory for doped band insulators"
 FIRST-QS2C workshop on emergent phenomena of correlated materials
 November 13-16, 2013, Tokyo, Japan
- R. Arita
 "Development of density functional theory for unconventional superconductors"
 Digital Design of Materials
 September 27-29, 2013, Boston, USA
- R. Arita
 "Effect of electron-phonon interactions on orbital fluctuations in iron-based superconductors"
 Recent developments in Fe-based high-temperature superconductors
 September 3-6, 2013, Riverhead, New York, USA
- R. Arita
 "Deveopment of density functional theory for plasmon assisted superconductivity"
 The international conference on strongly correlated electron systems
 Augst 5-9, 2013, Tokyo, Japan
- R. Arita
 "Density functional theory for plasmon assisted superconductivity"
 7th ISSP international workshop and symposium:
Emergent Quantum Phases in Condensed Matter
 June 12-14, 2013, Kashiwa, Japan
- R. Arita
 "Superconducting transition temperatures of alkali-doped fullerides: Insights from density functional theory for superconductors"
 Superstripes2013:Quantum in complex matter
 May 27-June 1, 2013, Ischia, Italy
- R. Arita
 "Superconductivity in alkali-doped fullerides: Insights from density functional theory for superconductors"
 Workshop on Superconductivity and Magnetism associated with Geometry and Dimensionality from Organics to Inorganics
 May 16-17, 2013, Sendai, Japan
- R. Arita
 "Magneto-Orbital Effect Without Spin-Orbit Interactions in a Noncentrocymmetric Zeolite-templated Carbon Structure"
 The 3rd CCS-CSJ, Young Chemists Forum 2013
 March 24, 2013, Shiga, Japan
- R. Arita
 "Density functional theory for plasmon-assisted superconductors"
 QS2C Theory Forum: International Symposium on Strongly Correlated Quantum Science
 January 26-29, 2012, Tokyo, Japan

2012
- R. Arita
 "SCDFT study of high Tc nitride superconductors"
 25th International Symposium on Superconductivity
 December 3-5, 2012, Tokyo, Japan
- R. Arita
 "LDA+DMFT study on the interplay between spin-orbit interaction and Coulomb correlation in Sr2IrO4 and Ba2IrO4"
 International workshop on Dynamical Mean-Field Approach for Strongly Correlated Materials
 September 25-28, 2012, Dresden, Germany
- R. Arita
 "Density functional theory for superconductors and its application to layered nitride superconductors"
 Innovations in strongly correlated electronic systems: School and Workshop
 August 6-17, 2012, Trieste, Italy
- R. Arita
 "High-temperature superconductivity in layered nitrides: insights from density functional theory for superconductors"
 ISSP-CMSI international symposium on material simulation in petaflops era (MASP 2012)
 July 2, 2012, Kashiwa, Japan
- R. Arita
 "LDA+DMFT study on dynamical screening of the local magnetic moment in LaFeAsO"
 2012 Villa Conference on iron-based superconductors
 Apr. 16-20, 2012, Florida, USA
- R. Arita
 "From large short-time to small long-time magnetic moments in Fe-based superconductors: A LDA+DMFT study"
 Workshop on superconductivity in iron-based compounds (funded by the DFG Priority Program SPP 1458)
 Mar. 21-23, 2012, Munich, Germany
- R. Arita
 "Interplay between Spin-Orbit Interaction and Coulomb Correlation in Sr2IrO4 and Ba2IrO4"
 RIKEN-APW-APCTP Joint Workshop "Recent trends in condensed matter physics"
 Jan. 14-16, 2012, Wako, Japan

2011
- R. Arita
 "Mechanism of high Tc superconductivity in layered nitride superconductors: Insights from DFT for superconductors"
 Novel Quantum States in Condensed Matter 2011 (NQS2011)
 Dec. 5 - Sep 9, 2011, Kyoto, Japan
- R. Arita
 "Alkali-metal loaded zeolites: Relativistic and correlated s electron systems"
 Zurich Theoretical Physics Colloquium
 Oct. 31, 2011, Zurich, Switzerland
- R. Arita
 "Mechanism of high Tc superconductivity in layered nitride superconductors: Insights from DFT for superconductors"
 Tokyo-Cologne Workshop on Strongly Correlated Transition-Metal Compounds
 Sep. 7 - Sep 9, 2011, Cologne, Germany
- R. Arita
 "Impurity effects in iron-based superconductors"
 Ringberg Symposium on High Temperature Superconductivity
 May. 16 - May 19, 2011, Schloss Ringberg, Germany
- R. Arita
 "Design of d1, d7, and J=1/2 analogs of cuprates from first principles"
 KIAS workshop on Frontiers in Condensed matter physics
 May. 9 - May 12, 2011, Korea institute for advanced study, Korea
- R. Arita
 "Dichotomy between large local and small ordered magnetic moment in Iron-based superconductors"
 4-th Indo-Japan Seminar ¡ÈElectronic Structure of Novel Magnetic and Superconducting Materials
 Feb. 1 - Feb 3, 2011, University of Tokyo, 
Tokyo
- R. Arita
 "Dichotomy between large local and small ordered magnetic moment in Iron-based superconductors"
 KITP workshop on iron-based superconductors
 Jan. 10 - Jan 21, 2011, Kavli Institute for Theoretical Physics, 
Santa Barbara

2010
- R. Arita
 "Toward taylor-made correlation in Zeolites"
 Opening Symposium of QS2C Theory Forum
 Sep. 27 - 30, 2010, RIKEN, Saitama
- R. Arita
 "LDA+FLEX study of Fe-based superconductors based on ab-initio downfolding"
 European Workshop on Electronic structure of Fe-based superconductors
 May. 10 - May 12, 2010, Max Planck Institute for Solid State Research, 
Stuttgart
- R. Arita
 "Toward taylor-made correlation in Zeolites"
 Towards Material Design using Strongly Correlated Electron Systems
 Jan. 5 - March 12, 2010, Kavli Institute for Theoretical Physics, 
Santa Barbara
2009
- R. Arita
 "Toward taylor-made correlation in Zeolites: ab initio derivation of low-energy models"
 International Symposium of Electronic Structure Calculations -Theory, Correlated and Large Scale Systems and Numerical Methods-
 Dec 07-09, 2009, Tokyo
- R. Arita
 "Unconventional superconductivity in iron pnictides: A study based on ab initio downfolding with maximally localized Wannier functions"
 Frontiers in Density functional Theory
 Sep 13-17, 2009, New York
- R. Arita
 "Does Fermi surface nesting favor an s¡Þ wave pairing in iron-based superconductors ?: An LDA+RPA/FLEX study"
 Physics on transition metal based superconductors
 Jun 24- 26 2009, Sendai
- R. Arita
 "Unconventional Superconductivity in iron pnictides :LDA+RPA study"
 KITPC program "Iron-based High Tc superconductors"
 May 18-Jun 5 2009, Beijing
- R. Arita
 "Magnets comprising  non-magnetic elements"
 Psi-k Workshop on Magnetism in Complex Systems
 16-18 April 2009, Vienna
2008
- R. Arita
 "Unconventional pairing originating from disconnected Fermi
surfaces in iron-pnictide superconductors"
 FeAs High Tc Superconducting Multilayers and Related Phenomena
 Dec. 9 - 12, 2008, Rome Italy
- R. Arita
 "Unconventional superconductivity in iron pnictides:
A study based on ab initio downfolding"
 The 11th Asian Workshop on First-Principles Electronic Structure
Calculations (ASIAN11)
 Nov. 2 - 5, 2008, Kaohsiung, Taiwan
- R. Arita
 "Possible unconventional pairing originating
from disconnected Fermi surfaces in iron-pnictide superconductors"
 Beijing International Workshop on Iron (Nickel)-Based Superconductors
 Oct. 17-19, 2008, Beijing, China
- R. Arita
 "First-principles study of the electronic structure of the Iron-based
pnictides"
 Miniworkshop on strong correlations in materials and atom traps
 Aug. 4-15, 2008, Trieste, Italy
2007
- R. Arita
 "Methods for electronic structure calculations with dynamical mean field theory:
An overview and recent developments"
 ISSP International Workshop and Symposium on
"Foundations and Applications of the density functional theory"
 July 19- Aug 10 (2007), Kashiwa
- R. Arita
 "First-principles scheme for strongly correlated electron systems with maximally
localized Wannier functions: Application to black sodalite"
 ISSP International Workshop and Symposium on
Foundations and Applications of the density functional theory
 July 19- Aug 10 (2007), Kashiwa
2006
- R. Arita
 "Application of Projective QMC to LDA+DMFT calculations at zero temperature"
 International Workshop on First Principles Calculation of Correlated Electrons
 Nov 30- Dec 1 (2006), Tokyo