Welcome to the Computational Many-Body Physics Group
We develop and use computational tools to probe physics of atomic and many-atomic complex systems

RESEARCH

I work in the area of Computational Condensed Matter and Computational Atomic Physics. My research expertise encapsulates the development and use of computational tools to probe exciting physics and corresponding technological applications in atomic and many-atomic complex systems. My current research interests are:

  • Ferroelectric(Antiferroelectric) bulk and nanostructures
  • Ferromagnetic(Antiferromagnetic) bulk and nanostructures
  • Multiferroic bulk and nanostructures
  • Relaxor ferroelectric
  • Development and application of relativistic coupled-cluster based methods
  • Atomic clocks
  • Parity and time-reversal violation in atoms and ions
    • Read More

    RECENT PUBLICATIONS

  • "Probing transition rates, nuclear moments, and electric dipole polarizability in nobelium using multireference Fock-space relativistic coupled-cluster and perturbed relativistic coupled-cluster theories",
    Ravi Kumar, P Gakkhar, D Angom, BK Mani,
    Physical Review A 113, 062815 (2026) ;

  • "Magnetic, transport and electronic properties of Ni2FeAl Heusler alloy nanoparticles: Experimental and theoretical investigation",
    Priyanka Yadav, Mohd Zeeshan, Brajesh K. Mani, and Rajendra S. Dhaka,
    J. Alloy. and Comp. 1067,188382 (2026) ;

  • "Fock-space relativistic coupled-cluster two-valence calculations of clock transition properties, dipole polarizability, and isotope shifts in fermionic and bosonic Sr",
    P Gakkhar, D Angom, BK Mani,
    Physical Review A 113, 032817 (2026) ;

  • "Designing new Zintl phases SrBaX (X= Si, Ge, Sn) for thermoelectric applications using ab initio techniques",
    Vivek Gusain, Mohd Zeeshan, BK Mani,
    Materials Today Physics, 60, 102055 (2026) ;

  • "Strain modulated optoelectronic properties of graphene and MoS -- based bilayer and trilayer heterostructures,
    Shivani Kumawat, Chandan Kumar Kumar Vishwakarma, Mohd Zeeshan, Sunil Kumar, Brajesh Kumar Mani,
    J. Phys.: Condens. Matter 38 135303 (2026) ;

    • NEW HIGHLIGHTS

    QED corrections to polarizability of group-13 elements Read More

    RCC theory for two-valence atoms and ions Read More

    Correlation and relativistic effects in superheavy elements Read More

    Critical Thickness for Antiferroelectricity in PbZrO3 Read More

    Order-disorder phase transition in PbTiO3 Read More

    Strain-tunable triple point Fermions in diamagnetic rare-earth half-Heusler alloy Read More