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Ratchet Current Landscape at Quantum Resonance
(2020-12-14)
The ratchet effect is the rectified motion of atoms using an unbiased driving force. By ‘’unbiased’’ we mean to say that the time-average is equal to zero. This can be accomplished experimentally using cold atoms in a ...
Finite Pulse Ratchet Effect of Cold Atoms
(2021-03-23)
The thesis presents the modelling and simulation of the rachet effect created by a spatio temporal asymmetry potential. The potential is a coupled spatial asymmetry sin wave and a rectangular pulse train. The effective ...
Graphene-Hexagonal Boron Nitride Work Function Response to Uniform Planar Deformations: An ab initio DFT Study
(2021-04-23)
A two-dimensional hybrid material with graphene and hexagonal boron (h-BN) domain is considered as viable material for future generations of flexible electronic devices due to the tunable band gap, excellent mechanical and ...
Noise-Enhanced Directed Transport of Cold Atoms
(2021-03-14)
The possibility of enhancing directed transport for a driven quantum particle in the presence of noise is investigated. Specifically, we deal with cold atoms trapped in an asymmetric optical lattice potential (ratchet ...
AB Initio Study of Surface Energy, Surface Stress and Coupling Coefficient of Au (111)
(AUST, 2023-12-10)
This study investigates ab initio exploration of the Au (111) surface within the generalized gradient approximation, with a primary focus on assessing the convergence properties of this noble metal. An in-depth analysis ...