S Kumar Mallavarapu
Areas of Interest & Expertise
- Topological Solitons
- Neutron Stars
- Quantum Chromodynamics
- Cold Atom Physics
Biography
S Kumar Mallavarapu is a theoretical physicist who has made a significant contribution to research about the study of dense quark matter and cold atom systems. In this regard, several aspects of quark superfluidity in the two-fluid formalism were derived from an underlying field-theoretic model. Another important discovery was that the first (second) sound evolves from a density (temperature) wave at low temperatures to a temperature (density) wave at high temperatures.
Furthermore, Kumar created a lattice simulation confirming the decay of a superfluid vortex (in the colour-flavour-locked phase of quark matter) into semi-superfluid vortices. Additionally, he has studied issues related to population trapping in periodically driven Rydberg atoms. In this context, he has published on the analogue of the Kapitza’s pendulum problem at the quantum level. Problems related to the application of field theory and quantum mechanics appeal to him.
As part of his academic career, he has taught undergraduate courses such as wave mechanics, quantum mechanics, electricity and magnetism, optics, and mathematical methods. He has also taught postgraduate physics courses on electromagnetic theory, nuclear and particle physics, and mathematical physics. He has also taught a programming-based course on statistical inference in data science.
Publications
Journal Articles
- Mallavarapu, S. K., Niranjan, A., Weibin, L, Wuster, S., & Nath, R. (2021). Population trapping in a pair of periodically driven Rydberg atoms, Phys. Rev. A, 103, 023335. https://doi.org/10.1103/PhysRevA.103.023335
- Alford, M. G., Mallavarapu, S. K., Vachaspati, T., & Windisch, A. (2016). Stability of superfluid vortices in dense quark matter, Phys. Rev. C, 93, 04580. https://doi.org/ 10.1103/PhysRevC.93.045801
- Alford, M. G., Mallavarapu, S. K., Schmitt, A., & Stetina, S. (2014). Role reversal in first and second sound in a relativistic superfluid, Phys. Rev. D, 89, 085005. https://doi.org/10.1103/PhysRevD.89.085005
- Alford, M. G., Mallavarapu, S. K., Schmitt, A., & Stetina, S. (2013). From a complex scalar field to the two fluid picture of superfluidity. Phys. Rev. D, 87, 065001. https://doi.org/10.1103/PhysRevD.87.065001
Conference Proceedings
- Alford, M. G., Mallavarapu, S. K., Vachaspati, T., & Windisch, A. (2016). Vortex structure in superfluid color-flavor locked quark matter. EPJ Web of Conferences, 129. https://doi.org/10.1051/epjconf/201612900035
- Alford, M. G., Mallavarapu, S. K., Schmitt, A., & Stetina, S. (2012). From field theory to superfluid hydrodynamics of dense quark matter. Conference Proceedings of “Compact Stars in the QCD Phase Diagram III (CSQCD III)”. https://doi.org/10.48550/arXiv.1304.7102
- Alford, M. G., Mallavarapu, S. K., Schmitt, A., & Stetina, S. (2012). Relativistic superfluid hydrodynamics from field theory. Proceedings of Science, Xth Quark Confinement and the Hadron Spectrum. https://doi.org/10.22323/1.171.0256
The full list of his publications can be found here.