Rahul Pandit | Self-gravitating bosonic & axionic systems & a minimal model for pulsar glitches

ADI | Prof. Rahul Pandit | Self-gravitating bosonic and axionic systems and a minimal model for pulsar glitches.

Speaker: Professor Rahul Pandit (Indian Institute of Science)
Date: 18th Jun 2024 - 11:00 to 12:00
Venue: INI Seminar Room 2
Title: Self-gravitating bosonic and axionic systems and a minimal model for pulsar glitches.
Event: (ADI) Anti-diffusive dynamics: from sub-cellular to astrophysical scales
Abstract: We study self-gravitating bosonic systems, candidates for dark-matter halos, by carrying out a set of direct numerical simulations designed to investigate the formation of finite-temperature, compact objects in the three-dimensional (3D) Fourier-truncated Gross-Pitaevskii-Poisson equation (GPPE). This truncation allows us to explore the collapse and fluctuations of compact objects over a wide range of model parameters. By introducing a solid-crust potential and rotation in the GPPE, we develop a minimal model for pulsars and their glitches. [References: (1) A.K. Verma, R. Pandit, and M.E. Brachet, The formation of compact objects at finite temperatures in a dark-matter-candidate self-gravitating bosonic system, Phys. Rev. Research 3 (2), L022016 (2021). (2) A.K. Verma, R. Pandit, and M.E. Brachet, Rotating self-gravitating Bose-Einstein condensates with a crust: a minimal model for pulsar glitches, Physical Review Research 4 (1), 013026 (2022). (3) S. Shukla, A.K. Verma, M.E. Brachet, and R. Pandit, Gravity- and temperature-driven phase transitions in a model for collapsed axionic condensates, Phys. Rev. D 109, 063009 (2024). (4) S. Shukla, M.E. Brachet, and R. Pandit, Neutron-superfluid vortices and proton-superconductor flux tubes: Development of aminimal model for pulsar glitches (arXiv preprint 2024).

👉 Want to learn more about the talks in this stream?

Seminar Link:https://www.newton.ac.uk/seminar/41969/

Programme: https://www.newton.ac.uk/event/adi/

-------------------

FOLLOW US
🌐| Website: https://www.newton.ac.uk
🎥| Main Channel:    / @isaacnewtoninstitute  
🐦| Twitter:   / newtoninstitute  
💬| Facebook:   / newton.institute  
📷| Instagram:   / isaacnewtoninstitute  
🔗| LinkedIn:   / isaac-newton-institute-for-mathematical-sc...  

SEMINAR ROOMS
🥇| INI Seminar Room 1:    / @iniseminarroom1  
🥈| INI Seminar Room 2:    / @iniseminarroom2  
🛰️| INI Satellite Events:    / @inisatellite  

ABOUT
The Isaac Newton Institute is a national and international visitor research institute. It runs research programmes on selected themes in mathematics and the mathematical sciences with applications over a wide range of science and technology. It attracts leading mathematical scientists from the UK and overseas to interact in research over an extended period.

👉 Learn more about us and our events here: https://www.newton.ac.uk