Biswanath Layek

Brief Bio 

Research Topics

• Theoretical studies of gravitational waves from isolated pulsars
• Understanding pulsar (neutron star) glitches through theoretical models
• Probing the phases of pulsar core by studying various observable consequences
• Topological defects in the early universe : observational consequences
• Baryogenesis through electroweak phase transition
• Implications of various phase transitions in the early universe

Talks

• "Effects of Phase Transition in a Pulsar Core on Pulse Profile Modulation"; ICPAQGP - 2023; Blue Lily Beach Resort, Puri ; 7th - 10th February 2023.
• “Probing phase transitions in a pulsar core through the observable effects on pulse profile modulation" ; XXV DAE-BRNS High Energy Physics Symposium ; IISER, Mohali, 12th - 16th December 2022.
• "Bursts of gravitational waves due to crustquake from pulsars" ; 30th meeting of the Indian Association for General Relativity and Gravitation(IAGRG), organized by BITS - Pilani, Hyderabad, 3rd  - 5th January 2019.
• "Probing Dynamics of Phase Transition Occurring Inside a Pulsar" ; 7th International Conference on Physics and Astrophysics of Quark-Gluon Plasma (ICPAQGP-2005), Kolkata, India, 2nd - 6th February 2015.
• "Probing Dynamics of Phase Transition Occurring Inside a Pulsar" ; XXI DAE-BRNS High Energy Physics Symposium ; IIT Guwahati, 8th - 12th December 2014.
• “Strings with a Confining Core in a Quark-Gluon Plasma” ;TIFR, Mumbai, India, 2005 and Variable Energy Cyclotron Centre, Kolkata, India, 2005.
• "Strings with a Confining Core in a Quark-Gluon Plasma” ;Vth International Conference on Physics and Astrophysics of Quark-Gluon Plasma (ICPAQGP-2005), Kolkata, India, 8th - 12th February 2005.
• “Baryogenesis via Density Fluctuations with a Second Order Electroweak Phase Transition” ; IXth International Symposium on Particles, Strings and Cosmology (PASCOS-2003), TIFR, Mumbai, India, 3rd - 8th January 2003.
• “Implications of Cosmic String Induced Density Fluctuations at the Quark Hadron Transition" QCD-2002, IIT Kanpur, India, 18th - 22nd November 2002.

Visited/Attended

• Institute of Physics, Bhubaneswar on sabbatical leave during June - December 2013
• Workshop on High Energy Physics Phenomenology (WHEPP- XI), Physical Research Laboratory, Ahmedabad, 2nd Jan- 10th Jan, 2010.
• QGP Meet’06, Variable Energy Cyclotron Centre, Kolkata, 2006.
• Supercomputing Relativistic Heavy-Ion Collision (SRHIC) Physics, TIFR, Mumbai, India, 2005.
• Vth International Conference on Physics and Astrophysics Quark-Gluon Plasma (ICPAQGP-2005), Kolkata, India, 2005.
• QGP Meet’04, Institute of Physics, Bhubaneswar, India, 2004.
• Summer School in Cosmology and Astroparticle Physics, ICTP, Italy, 2004.
• Workshop on High Energy Astrophysics (HEAP’04), IIT, Kharagpur, 2004.
• VIIIth Workshop on High Energy Physics Phenomenology (WHEPP-8), IIT Bombay, Mumbai, 2004.
• QGP Meet’03, Variable Energy Cyclotron Centre, Kolkata, 2003.
• IXth International Symposium on Particles, Strings and Cosmology (PASCOS-2003), TIFR, Mumbai, 2003.
• International Workshop “QCD-2002”, IIT Kanpur, 2002.
• XVIIth SERC School in Theoretical High Energy Physics, IoP, Bhubaneswar, 2002.
• School on Cosmology and Formation of Structures in the Universe, HRI, Allahabad, 2001.
• IVth International Conference on Physics and Astrophysics of Quark-Gluon Plasma (ICPAQGP-2001), Jaipur, India, 2001.
• XVIth SERC School in Theoretical High Energy Physics, HRI, Allahabad, 2001. 

PhD Students

• Student    :  Dr. Pradeep Kumar Yadav (completed)
• Thesis      :  Theoretical Studies of a Few Pulsar Observables
• Based on  :

1. Vortex unpinning due to crust quake initiated neutron excitation and pulsar glitches; Biswanath Layek and Pradeep Kumar Yadav; Monthly Notices of the Royal Astronomical Society,499, 455 (2020).
2. Bursts of gravitational waves due to crust quake from pulsars; Biswanath Layek and Pradeep kumar Yadav; J Astrophysics Astron 41,  14 (2020)

• Student : Deepthi Godaba Venkata (ongoing)
• Articles published/submitted          :

1. Glitches due to quasineutron-vortex scattering in the superfluid inner crust of a pulsar; Biswanath Layek, Deepthi Godaba Venkata and Pradeep kumar Yadav;  Physical Review D 107, 023004 (2023),
2. Detecting superfluid transition in the pulsar core; Partha Bagchi, Biswanath Layek, Dheeraj Saini, Anjishnu Sarkar, Ajit M. Srivastava and Deepthi Godaba Venkata; Accepted for publication in Monthly Notices of the Royal Astronomical Society;   arXiv:2403.11539

• Student :  Brijesh Kumar Saini (ongoing)