Staff Profile

I am a theoretical physicist and a Research Associate at the School of Mathematics, Statistics and Physics at Newcastle University, working at the intersection of condensed matter physics and atomic, molecular and optical (AMO) physics. My current research, in association with Dr. Andrew Baggaley and Dr. Nick Parker, involves studying the influence of dipole-dipole interactions upon the characteristics of quantum turbulence in dipolar superfluids, such as Bose-Einstein condensates (BECs) of elements such as chromium (Cr), dysprosium (Dy) and erbium (Er).

I am originally from Bangalore, India, but grew up in Melbourne, Australia, where I attended the University of Melbourne from 2012 - 2021. After graduating with an undergraduate degree in mathematical physics in 2014, I completed a masters degree in 2016 with a thesis on quantum phase transitions in bosonic lattice systems with three-body interactions, supervised by Prof. Andy M. Martin. Subsequently, I continued in Prof. Martin's group while researching the effects of rotating magnetic fields upon magnetic dipolar Bose-Einstein condensates, graduating with a PhD in 2021.

Research Interests

• Ultracold quantum fluids (Bose-Einstein condensates, degenerate Fermi gases)
• Quantum turbulence
• Bosonic Hubbard models (Bose-Hubbard, Jaynes-Cummings-Hubbard)
• Few-body fermionic systems (reduced density matrices, N-representability)

• Articles

  • Prasad SB, Parker NG, Baggaley AW. Vortex-pair dynamics in three-dimensional homogeneous dipolar superfluids. Physical Review A 2024, 109(6), 063323.
  • Liu I-K, Prasad SB, Baggaley AW, Barenghi CF, Wood TS. Vortex Depinning in a Two-Dimensional Superfluid. Journal of Low Temperature Physics 2024, 215, 376-396.
  • Prasad SB, Mulkerin BC, Martin AM. Arbitrary-angle rotation of the polarization of a dipolar Bose-Einstein condensate. Physical Review A 2021, 103(3), 033322.
  • Prasad SB, Mulkerin BC, Martin AM. Stationary states, dynamical stability, and vorticity of Bose-Einstein condensates in tilted rotating harmonic traps. Physical Review A 2020, 101(6), 063608.
  • Prasad SB, Bland T, Mulkerin BC, Parker NG, Martin AM. Vortex lattice formation in dipolar Bose-Einstein condensates via rotation of the polarization. Physical Review A 2019, 100(2), 023625.
  • Prasad SB, Martin AM. Effective Three-Body Interactions in Jaynes-Cummings-Hubbard Systems. Scientific Reports 2018, 8, 16253.

• Letter

  • Prasad SB, Bland T, Mulkerin BC, Parker NG, Martin AM. Instability of Rotationally Tuned Dipolar Bose-Einstein Condensates. Physical Review Letters 2019, 122, 050401.