Astrophysics and High Energy Physics

• 170 publications in peer reviewed International Journals
• Completed 6 sponsored extra-mural projects
• Invited talks in 100 Schools/Conferences/Workshops
• 23 PhDs produced
• Courses delivered on Quantum theory & Cosmology
• Organized 10 International Conferences
• Delivered lectures in 20 Outreach Programmes

• M.Sc Physics, 1989, University of Delhi
• PhD 1994, University of Delhi

Quantum Information and Foundations:

• Quantum correlations: theory and applications
• Quantum non-locality; measurement problem, and decoherence

Gravitation & Cosmology:

• Dark energy problem from different perspectives
• Primordial black holes & the gravitational wave spectrum

Interdisciplinary areas:

• Relativistic quantum information
• Gravitational equivalence in quantum theory

• Quantum contextuality provides communication complexity advantage, S. Gupta, D. Saha, Z.-P. Xu, A. Cabello, A. S. Majumdar, Phys. Rev. Lett. 130, 080802 (2023).

• Enhanced power of gravitational waves and rapid coalescence of black hole binaries through k-essence dark energy accretion, A. Sarkar, A. A. Ali, K. R. Nayak, A. S. Majumdar, Phys. Rev. D 107, 084038 (2023).

• Measurement incompatibility and quantum advantage in communication, D. Saha, D. Das, A. K. Das, B. Bhattacharya, A. S. Majumdar, Phys. Rev. A 107, 062210 (2023).

• Fulling-Davies-Unruh effect for accelerated two-level single and entangled atomic systems, A. Mukherjee, S. Gangopadhyay, A. S. Majumdar, Phys. Rev. D 108, 085018 (2023).

• Assessing non-Markovian dynamics through moments of the Choi state, B. Mallick, S. Mukherjee, A. G. Maity, A. S. Majumdar, Phys. Rev. A 109, 022247 (2024).

• Analyzing the 21-cm signal brightness temperature in the Universe with inhomogeneities, S. S. Pandey, A. Halder, A. S. Majumdar, Phys. Rev. D 110, 043531 (2024).

• Efficient detection of nonclassicality using moments of the Wigner function, B. Mallick, S. Chakrabarty, S. Mukherjee, A. G. Maity, A. S. Majumdar, Phys. Rev. A 111, 032406 (2025).

• Constraining the Hubble parameter with the 21-cm brightness temperature signal in a universe with inhomogeneities, S. Mukherjee, S. S. Pandey, A. S. Majumdar, Phys. Rev. D 112, 063520 (2025).

• Sharing quantum nonlocality and teleportation over long distances using optical hybrid states, S. Bera, S. Bose, H. Jeong, A. S. Majumdar, J. Opt. Soc. Am. B 42, 2505 (2025) [Editor’s Pick].

• Classifying measurement incompatibility under classical pre- and post-processing operations, A. K. Das, S. Mukherjee, D. Saha, D. Das, A. S. Majumdar, Proc. Roy. Soc. A 482 (2329), 20250045 (2026).