OCAMI Joint Usage/Research
Helicity and space-time symmetry ― a new perspective of classical andquantum systems
Co-organized by NITEP: Nambu Yoichiro Institute of Theoretical andExperimental Physics, Osaka City University
Date: October 5 (Tue) - 8 (Fri), 2021
Venue: Media Center, Osaka City University (Sugimoto Campus)
https://indico.nitep.osaka-cu.ac.jp/event/86/
Remote attendance via Zoom is accepted

October 5 (Tue)※ [Z]: talk via Zoom

Chairperson: T. Oota (Osaka City U.)
13:50 ～ 14:00 Opening address
14:00 ～ 14:45 Y. Matsuo (U. Tokyo), A. Sugamoto (Ochanomizu U.)[Z]

A description of perfect fluid by Kalb-Ramond field and the duality with
Gross-Pitaevskii
Chairperson: C. Matsuoka (Osaka City U.)
14:45 ～ 15:30 Z. Yoshida (Natl. Inst. Fusion Sci.), P. J. Morrison (U. Texas, Austin)[Z]

The kinetic origin of the fluid helicity － a symmetry in the kinetic phasespace
15:30 ～ 16:00

Tea break

16:00 ～ 16:45 H. K. Moffatt (Trinity College, Cambridge)[Z]

Invariance of helicity and some topological implications
16:45 ～ 17:30 C. F. Barenghi (Newcastle U.)[Z]

Helicity and topology of a tangle of vortices

October 6 (Wed)Chairperson: H. Ishihara (Osaka City U.)
9:30 ～ 10:15 N. Yamamoto (Keio U.), D.-L. Yang (Academia Sinica)[Z]

Chiral radiation transport theory of neutrinos
10:15 ～ 11:00 S. Hanai, N. Yamamoto (Keio U.)[Z]

Gravitational waves caused by chiral transport phenomena in neutron starsand supernova
11:00 ～ 11:15

Tea break

11:15 ～ 12:00 Y. Masada (Aichi U. Edu.), T. Takiwaki (Natl. Astron. Obs. Japan),
K. Kotake (Fukuoka U.)[Z]

Convection and dynamo in newly-born neutron stars
12:00 ～ 14:00

Lunch break
Chairperson: T. Oota (Osaka City U.)

14:00 ～ 14:45 K. Shimokawa (Saitama U.)[Z]

Untying pathways of vortex knots
Chairperson: C. Matsuoka (Osaka City U.)
14:45 ～ 15:30 R. Morita (Hokkaido U.)[Z]

Physics of optical vortex and its application
15:30 ～ 16:00

Tea break
Chairperson: M. Tsubota (Osaka City U.)

16:00 ～ 16:45 X. Liu (Beijing U. Tech.), R. L. Ricca (U. Milano-Bicocca)[Z]

Detecting topology of fluid vortex knots in terms of polynomial
invariants constructed from helicity
16:45 ～ 17:30 R. L. Ricca (U. Milano-Bicocca), X. Liu (Beijing U. Tech.),X.-F. Li (Guangxi U. Sci. Tech.)[Z]

Minimal unlinking pathways as geodesics in knot polynomial space

October 7 (Thu)Chairperson: T. Oota (Osaka City U.)
9:30 ～ 10:15 K. Kohkichi (Natl. Inst. Tech. Tomakomai College)[Z]

Review of Chern-Simons modified gravity: its effects on compact objects
10:15 ～ 11:00 T. Igata (KEK)[Z]

Energy extraction from a rotating black hole
11:00 ～ 11:15

Tea break

11:15 ～ 12:00 K. Maruyoshi (Seikei U.)[Z]

Surface defects, vortices and integrable systems
12:00 ～ 14:00

Lunch break
Chairperson: C. Matsuoka (Osaka City U.)

14:00 ～ 14:45 K. Nishihara (Osaka U.), C. Matsuoka (Osaka City U.), T. Sano (Osaka U.),
F. Cobos-Campos (U. Castilla-La Mancha)
Richtmyer-Meshkov instability and vortices
14:45 ～ 15:30 T. Sano (Osaka U.)
Laser-driven interfacial instabilities in magnetized plasmas
15:30 ～ 16:00

Tea break

16:00 ～ 16:45 K. Abe (Osaka City U.)
Rigidity of Beltrami fields with a non-constant proportionality factor

16:45 ～ 17:30 C. Matsuoka (Osaka City U.), K. Hiraide (Ehime U.)
Exact solutions in non-integrable systems

October 8 (Fri)
Chairperson: T. Oota (Osaka City U.)
9:30 ～ 10:15 H. Yoshimura (Waseda U.)[Z]

Dirac geometry and variational structures in nonequilibrium thermodynamics
Chairperson: C. Matsuoka (Osaka City U.)
10:15 ～ 11:00 L. Peng (Keio U.)[Z]Continuous symmetries of semi-discrete equations and conserved quantities
11:00 ～ 11:15

Tea break
Chairperson: H. Itoyama (Osaka City U.)

11:15 ～ 12:00 Y. Fukumoto (Kyushu U.), R. Zou (U. Hawai’i)
Particle relabeling symmetry and Noether's first and second theorems for
fluid and MHD equations
12:00 ～ 12:10 Closing remarks※ If you attend this conference, please visit the HP and make registration
https://indico.nitep.osaka-cu.ac.jp/event/86/
by clicking the button ‘Registration’ on the left
Organizers
Yasuhide Fukumoto (Kyushu U., PI), Hiroshi Itoyama (Osaka City U.)
Chihiro Matsuoka (Osaka City U.)