Browsing Division of Physical and Mathematical Sciences by Subject "Research Subject Categories::NATURAL SCIENCES::Physics::Other physics"
Now showing items 1-17 of 17
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Applications of Holography
This thesis consists of four parts. In the first part of the thesis, we investigate the phase structure of Einstein-Maxwell-Scalar system with a negative cosmological constant. For the conformally coupled scalar, an ... -
Applications of Moonshine Symmetry in String Theory
In this thesis we study the applications of Mathieu moonshine symmetry to compacti cations of supersymmetric string theories. These theories are compacti ed on a 6 dimensional manifold K3 T2. The main ingredient in ... -
Aspects of Holography and Quantum complexity
We begin with the Principle of holography and the AdS/CFT correspondence. We begin our investigations by considering the Principle of Holography, at the level of codimension-1 screens. We argue that the mechanism of encoding ... -
Dielectric, Mechanical, Magnetic and Electromagnetic Shielding properties of Carbon nanomaterial embedded Polydimethylsiloxane composites
Composites are the advanced engineering materials invented by men with exceptional properties over traditional materials. These attractive and delightful materials are the result of developments in the area of engineering ... -
Experimental Studies in Quantum Optics using Diode Lasers
This thesis discusses experimental studies with vapor cells containing rubidium (Rb) or cesium (Cs) atoms. Transitions in the atoms (D1 and D2 lines) are accessed using diode lasers. Experiments are performed at room ... -
Exploring carrier dynamics in van-der-Waals heterostructures with shot noise spectroscopy, thermoelectricity and opto-electronic study
In the last two decades, there has been tremendous progress in two-dimensional (2D) - material research. It is mainly due to the availability of a large selection of 2D-materials and their van-der-Waals heterostructures. ... -
Fabrication and Characterization of Multilayer MoS2 Coated Etched Fiber Bragg Grating Sensors and Side-hole Packaged Fiber Bragg Grating Sensors with Enhanced sensitivity for Different Applications
In summary, MoS2 coated, etched FBG sensors have been used for various applications. Firstly, the strain sensitivity has been studied; a high strain sensitivity of 6.3 pm/μɛ with a linear range of sensing response from 0 ... -
First Principles Study of Oxides : Bulk, Interfaces and Defects
In the recent years, oxides have been the focus of numerous theoretical and experimental studies. This is because of a wide variety of exotic physical phenomenon, such as multiferroicity, charge ordering, metal-insulator ... -
Fluctuations in quantum transport in topological insulators
Topological insulators (TIs) belong to a new class of materials characterized by linear surface states, which emerge in the bulk band gap due to non-trivial topology of the band structure. These surface states have various ... -
Linear Nanopositioning Systems for Scanning Probe Microscopy
Scanning probe microscopes (SPM) are vital for visualizing and characterizing samples of interest to various fields with nanometer resolution, such as semiconductor fabrication, microbiology, and material engineering. The ... -
Mesoscopic Heat engines beyond the Limits of Thermodynamics
Despite the central role that Equilibrium thermodynamics has played in our understanding of many body systems, the underlying theoretical construct is strictly correct only in the ‘Thermodynamic Limit’. On the other hand, ... -
Physics and application of charge transfer in van der Waals heterostructures
Since the discovery of graphene, the field of 2D materials has garnered massive interest from a materials science, basic physics and device application point of view. This results from the diverse range of electronic and ... -
Rapid light sheet fluorescence microscopy for dynamic imaging of living organisms
The primary goal of this thesis is to develop a light sheet based microscopy system that provides non-invasive images having high spatial and temporal resolution. The fluorescence microscopy has become an indispensable ... -
Spectroscopic and Diffraction Signatures of Quantum Spin Liquids, Skyrmion Lattices and Transition Metal Dichalcogenides at Low Temperatures and High Pressures
This thesis presents experimental as well as theoretical studies on several contemporary systems like quantum spin liquids (QSLs), skyrmion lattices, and transition metal dichalcogenides (TMDs) under extreme conditions ... -
Study of Structure and Dynamics of Bioactive Natural and Synthetic Peptides by NMR Spectroscopy and In silico Methods.
The thesis covers conformational analysis of several bioactive peptides using solution and solid-state NMR along with in silico analysis of some of them compiled in five chapters. It starts with an introduction to solution ... -
A Study of the Low-Energy Spectrum and Phase Structure of a Yang-Mills Matrix Model
Yang-Mills theory is a non-Abelian gauge theory based on the gauge group SU(N), and lies at the heart of the QCD, the theory underlying strong interactions. Due to the fundamental property of asymptotic freedom, a study ... -
Turbulent Mixing of Multiple-Passive-Scalars
We have studied the mixing of multiple forced passive scalars in 3D homogeneous and isotropic turbulence. The trends of the structure functions for a single scalar, although not very well resolved, seem to be similar to ...