Publications & Talks

Articles

1. (Preprint)Yuma Furuta, Yuya Kusuki and Toshiki Onagi, Transmission Coefficients from Phantom Currents, arXiv:2511.00356

2. (Preprint)Yoshiki Fukusumi, and Yuma Furuta, Homomorphism, substructure and ideal: Elementary but rigorous aspects of renormalization group or hierarchical structure of topological orders , arXiv:2506.23115

3. Yuma Furuta, On the classification of duality defects in c=2 compact boson CFTs with a discrete group orbifold, arXiv:2412.01319, JHEP06(2025)219

4. Yuma Furuta, On the Rationality and the Code Structure of a Narain CFT, and the Simple Current Orbifold, arXiv:2307.04190, J. Phys. A: Math. Theor. 57 275202 

5. Yuma Furuta, Relation between spectra of Narain CFTs and properties of associated boolean functions, arXiv:2203.11643, JHEP09(2022)146

Talks

Japanese

1. Yuma FURUTA, Yuya KUSUKI, and Toshiki ONAGI, Calculation for transmission coefficients of conformal interfaces, JPS Kyushu Meeting, Dec. 2025 [Link]

2. Yuma FURUTA, Fusion rules and classification of duality defects with gauging of U(1) global symmetry, JPS Autumn Meeting 2025, Sep. 2025 [Link]

3. Yuma FURUTA, Conformal Field Theory and (non) topological defect, Recent and Future Context for Mathematical Physics, Aug. 2025 [Link]

4. Yuma FURUTA, On the quadratic equations for detecting duality symmetries of $c=2$ compact boson CFTs, Meeting for Intersections of Nuclear and Other Researches, Mar. 2025 [Link]

5. Yuma FURUTA, On the topological defect lines determined by the T-duality of compact boson CFT at $c=2$, JPS Autumn Meeting 2024, Sep. 2024 [Link]

6. Yuma FURUTA, On the topological defect lines determined by the T-duality of compact boson CFT at $c=2$, YONUPA Summer School 2024, Aug. 2024 [Link]

7. Yuma FURUTA, On the relation between orbifolds of Narain CFTs and error-correcting codes, Meeting for Intersections of Nuclear and Other Researches, Mar. 2024 [Link](invited)

8. Yuma FURUTA, On the code-theoretical structure of Narain CFTs, Student Seminar for Particle, Nuclear, and Cosmology 2024, Feb. 2024 [Link] 

9. Yuma FURUTA, On the code-theoretical structure of Narain CFTs, MATHSCI FRESHMAN SEMINAR 2024, Feb. 2024 [Link]

10. Yuma FURUTA, Rationality of Narain CFTs and their Code-Like Structures, JPS Autumn Meeting 2023, Sep. 2023 [Link]

11. Yuma FURUTA, Rationality of Narain CFTs and their Code-Like Structures, YONUPA Summer School 2023, Aug. 2023 [Link]

12. Yuma FURUTA, Rationality of Narain CFTs and Construction of Partition Function with Simple Currents, String and Fields 2023, Aug. 2023 [Link]

13. Yuma FURUTA, The Construction of CFTs with codes and its description by Boolean functions, The 19th Mathematical Conference of Young Researches, Mar. 2023 [Link]

14. Yuma FURUTA, Boolean functions and quantum stabilizer codes related to Narain CFTs, RIMS Joint Research "Research on finite groups, algebraic combinatorics, and vertex algebras", Dec. 2022 [Link]

15. Yuma FURUTA, Relation between spectra of Narain CFTs and associated boolean functions,  JPS Autumn Meeting 2022, Sep. 2022 [Link]

16. Yuma FURUTA, The Construction of  ``Good'' CFTs Using Error-Correcting Codes, Komaba Seminar of Finite Groups, May 2022  [link] (invited)

17. Yuma FURUTA,  Relation between spectra of Narain CFTs and properties of associated boolean functions, MATHSCI FRESHMAN SEMINAR 2022, Feb. 2022 [link]

18. Yuma FURUTA,  The Construction of Narain CFTs Using Quantum Stabilizer Codes,  YONUPA Summer School 2021, Aug. 2021, (Poster, review) [link]

English

1. Yuma FURUTA, Classification of the duality defect in $c=2$ compact boson CFT, Progress of theoretical bootstrap, Nov. 2025 [Link] (Poster)

2. Yuma FURUTA, On the quadratic equations for detecting duality symmetries of $c=2$ compact boson CFTs, Kyushu IAS - iThems conference: non-perturbative methods in QFT, Mar. 2025 [Link]

3. Yuma FURUTA, On the quadratic equations for detecting duality symmetries of $c=2$ compact boson CFTs, Seminar at Kyushu University, Nov. 2024 [Link] (invited)

4. Yuma FURUTA, On the simple current orbifolds of Narain CFTs and their discrete torsions, Seminar at Yukawa Institute for Theoretical Physics, Kyoto Univ., Oct. 2024 [Link] (invited)

5. Yuma FURUTA, On the simple current orbifolds of Narain CFTs and their discrete torsions, Seminar at Tokyo Univ., Jun. 2024 [Link] (invited)

6. Yuma FURUTA, On the discrete torsions of simple current orbifold of Narain CFT and its meaning in the code theory, QFT and Related Mathematical Aspects 2024, Mar. 2024 [Link] (invited)

7. Yuma FURUTA, Code Structures of Rational Narain CFTs, The 18th Kavli Asian Winter School on String, Particles and Cosmology, Dec. 2023 (poster) [Link]

8. Yuma FURUTA, The Construction of Narain CFTs by Boolean Functions,  and their Mathematical Meanings, International Symposium on Advanced Quantum Technology for Future, Mar. 2023 (poster)

9. Yuma FURUTA, Boolean functions and Narain CFTs, The 17th Kavli Asian Winter School on String, Particles and Cosmology, Jan. 2023 (gong show) [Link] 

Technical reports

1. Yuma Furuta, On the quadratic equations for detecting duality symmetries of c = 2 compact boson CFTs, International Journal of Modern Physics A [Link]

2. Yuma FURUTA, The Construction of CFTs with codes and its description by Boolean functions, Hokkaido University technical report series in mathematics 184 The 19th Mathematics Conference for Young Researchers, p233-237 [Link]

3. Yuma FURUTA, Boolean functions and quantum stabilizer codes related to Narain CFTs, RIMS Kokyuroku 2253 Research on finite groups, algebraic combinatorics, and vertex algebras [Link]