Physicist ·

Arafat Rahman

MSc Physics  ·  University of Dhaka  ·  Bangladesh

An aspiring condensed matter physicist exploring topological quantum materials through density functional theory, with a focus on symmetry, band topology, and the role of magnetism in emergent quantum states.

Topological Insulators DFT · VASP · QE Weyl Semimetals Superconductivity Wannier Functions EPW Package
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Education & Experience

MSc in Physics
University of Dhaka
2025 – Present
BSc (Hons) in Physics
University of Dhaka
Graduated 2024
Research Assistant
North South University
August 2025- Feb 2026 · Dhaka, Bangladesh

My research lies at the intersection of condensed matter theory and computational physics. I primarily use density functional theory and first principles methods to investigate the electronic structure of topological quantum materials, with a focus on band topology, symmetry protected phenomena, and magnetism, aiming to understand and predict emergent quantum states.

Research Areas

Topological Insulators
Band topology, Z₂ invariants, surface Dirac states, and bulk-boundary correspondence in time-reversal invariant systems.
Dirac & Weyl Semimetals
Topologically protected crossing points, chiral anomaly, Fermi arc surface states, and magneto-transport signatures.
Superconductivity
Electron-phonon coupling, BCS and unconventional pairing mechanisms, gap symmetry, and topological superconductors.
Density Functional Theory
Ab initio electronic structure, exchange-correlation functionals, Wannier interpolation, and phonon calculations.

Software & Packages

VASP
Vienna Ab initio Simulation Package — plane-wave DFT, hybrid functionals, SOC
Quantum ESPRESSO
Open-source DFT, DFPT for phonons and electron-phonon coupling
WannierTools
Topological invariants, surface states, Fermi arcs, anomalous Hall conductivity
EPW Package
Electron-phonon coupling on Wannier basis, superconducting gap calculations
ALAMODE
Anharmonic lattice dynamics, phonon dispersions, force-constant extraction
Wannier90
Maximally-localised Wannier functions, tight-binding interpolation
Python / NumPy
Post-processing, band structure analysis, phonon dispersion plotting

Research Papers

Scientific Reports  ·  2024  ·  Arafat Rahman, Alamgir Kabir & Tareq Mahmud
First-principles DFT investigation of BaCoX₃ halide perovskites, covering structural stability, magnetic and electronic properties, phonon stability, optical response, and thermoelectric performance for multifunctional energy and spintronic applications.
RSC Advances  ·  2025  ·  Arafat Rahman, Alamgir Kabir & Tareq Mahmud
A first-principles study of cubic Nd₃In focusing on semimetallic electronic structure and superconductivity-related properties, highlighting the potential of indium-based compounds in condensed matter and materials research.
Results in Surfaces and Interfaces  ·  2025
Combined experimental and DFT analysis of Mg-doped CuO thin films, examining how doping modifies crystal growth, morphology, optical behaviour, and electrical performance in oxide thin-film materials.

Physics Simulation Lab

Physics is not just something you read, it is something you experience. Dive into interactive simulations, explore freely, and build intuition as you go. drag to rotate · scroll to zoom · right-drag to pan. Change parameters in real time and watch the physics unfold instantly.

Drag · Scroll to orbit / zoom

Projectile on Inclined Plane

45°
12°
30 m/s
9.8
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Block on Surface

4.0
20
0.45
0.28
10°
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F = q(E + v×B)

0.0
0.5
1.5
1.0
1.0
1.0
0.5
500
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Transverse EM Wave

1.2
1.4
0.00
0.4
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Schwarzschild Geometry

1.0
0.0
28
0.8
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Morris-Thorne Wormhole

1.0
3.0
0.0
30
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Curvilinear Coordinates

1.0
16
0.5
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Hyperbolic Geometry

4
1.0
0.00
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Non-Orientable Surfaces

1
0.4
80
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Torus Knots

1.8
0.6
2
3

Point Group Symmetries

Symmetry lies at the heart of physics, governing conservation laws, electronic structure, and the fundamental behavior of matter. In crystalline solids, point group symmetries define how atoms are arranged and how properties such as band structure and optical response emerge. Explore Hermann–Mauguin point group symmetries through an interactive 3D visualization. drag to rotate · scroll to zoom.

Speed
Symbol
Crystal System
Symmetry Elements
Rotation axis Mirror plane Atom / lattice point Drag to rotate

Brillouin Zone Explorer

The 14 Bravais lattices, first classified by Auguste Bravais, reveal the beautiful order behind all crystalline solids, showing how atoms repeat in space to create structure and symmetry. Step into reciprocal space, where Brillouin zones bring this periodicity to life, highlighting high-symmetry k-points and paths that shape electronic band structures and material behavior. Explore all 14 Bravais lattices with their corresponding Brillouin zones and band-structure paths. drag · zoom · pan.

14 Bravais Lattices  ·  High-Symmetry k-Points  ·  Interactive 3D
All
Cubic
Tetrag.
Ortho.
Mono.
Triclinic
Trigonal
Hexag.
Faces
Path
Labels
Drag · Scroll · Right-drag to pan

Get In Touch

Open to research collaborations, academic discussions, and opportunities in computational condensed matter physics.

Google Scholar Profile GitHub · arafatdu-phy LinkedIn Profile
Affiliation
University of Dhaka
Department of Physics
Dhaka 1000, Bangladesh
Previous Affiliation
North South University
Research Assistant · 2025–2026