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Non-ergodicity in Interacting Quasiperiodic Systems and Disordered Fock Lattice Models
In this thesis, we study different aspects of many body localization in closed quantum systems. Many body localized systems are isolated interacting quantum systems that fail to thermalize on their own (non-ergodic) and ...
Numerical Studies of Spiral- and Scroll-wave Dynamics in Cardiac Tissue: (1) Spiral- and Scroll-Wave Turbulence; (2) Spiral- and Scroll-Wave dynamics in Anatomically and Physiologically realistic Mathematical Models for Canine and Human Ventricular Tissue
A summary of the main results of our studies is
given below. In most of our work, we use three mathematical models for cardiac
myocytes, namely, the Panfilov model, the Aliev-Panfilov model, and the
Hund-Rudy-Dynamic ...
Ultrafast Study of Layered 3D Topological Insulators, Graphene-Gold Hybrid Plasmonic Nanostructure and Ultrathin Gold Nanowires
In a typical time-resolved pump-probe spectroscopy, ultrafast laser pulses (pulse width ~ 100
fs) are utilized to induce a perturbation in the material of study within a time much shorter
than the characterisitic lifetime ...
Probing effect of disorder in the electrical and optical properties on van der Waals heterostructure
In this thesis, we studied the transport properties of single-layer graphene and single-layer to few-layer
MoS2. We also studied the optical properties of MoS2 based single-layer, twisted bilayer devices. The main
observations ...
Cooling, heating and gas evolution in the circumgalactic medium
The Universe at large scales consists of gravitationally bound dark matter halos. Ordinary gas inside the halos emits
and also absorbs the radiation from background sources leaving distinct signatures for multi-wavelength ...
Sculpting colloidal membranes through phase transformations
Shaping macroscopic 2-D thin elastic sheets through differential strains in the system is a widely studied phenomenon applicable in diverse areas such as flexible electronics, origami and tissue growth. In contrast, at the ...
Investigation of quantum interference and quantum oscillations in 3D topological insulators
The investigations on the topological phase of the matter first started with the experimental discovery of the quantum Hall effect (QHE) back in 1980. The experimental discovery of the quantum spin Hall effect (QSHE) was ...
Compact objects in exotic premise and underlying gravitational waves
Einstein’s theory of general relativity and quantum mechanics were among the most startling discoveries in the 20th century. Based on these theories, the maximum mass of a non-rotating non-magnetized white dwarf is found ...
Electrical waves in mathematical models of human-ventricular tissue: effects of different modeling formalisms, electrophysiological factors, and heterogeneities on ventricular arrhythmias and the termination of these arrhythmias via a deep-learning approach
Sudden cardiac death (SCD) remains one of the significant causes of
mortality in industrialized and developing countries. SCD is often caused by
life-threatening cardiac arrhythmias like ventricular tachycardia and ...
Superconductivity in strongly correlated systems: Heavy fermions, Cuprates, Infinite-layer Nickelates
The phase diagrams of the heavy fermion, transition-metal (copper-, nickel-) oxides materials have a wide variety of different phases. It is believed that, the strong correlation among electrons governs most of the ...