Phymaths podcast # 71 || Dr. Tejinder Pal Singh

Description

Dr. Tejinder Pal Singh is a theoretical physicist at the Tata Institute of Fundamental Physics, working on the unification of interactions using trace dynamics and octonions. A list of his works is linked below.

Some links

1) His works: https://inspirehep.net/authors/988555?ui-citation-summary=true

2) Link to the high-energy physics resources page on my website: https://hassaansaleem.com/graduate-level-theoretical-physics-resources-in-progress/

Contact Info

My website: hassaansaleem.com

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Time stamps

(0:00) Intro of the guest

(0:16) His current projects

(3:37) Octonions

(13:57) Spacetime being classical

(17:38) Structure of the Lagrangian and Connes time

(22:50) Calculating path integral

(33:21) Why octonions?

(35:43) Role of SU(2)

(39:57) Electroweak scale as QG scale?

(46:17) Top quark problem

(50:18) Fine structure constant

(1:00:11) RG flow of Fine structure constant

(1:02:45) (People's question) Advice for students

(1:10:22) Anthropic reasoning

(1:14:21) (People's question) AI's impact

(1:17:29) (People's question) TIFR theory group

(1:33:42) (People's question) Relativistic collapse models

(1:38:45) (People's question) Thanu Padmanabhan

(1:40:43) (People's question) John Baez's work