Coupled multiphysics modelling of sensors for chemical, biomedical, and environmental applications with focus on smart materials and low-dimensional …

S Singh, R Melnik - Chemosensors, 2022 - mdpi.com
Low-dimensional nanostructures have many advantages when used in sensors compared
to the traditional bulk materials, in particular in their sensitivity and specificity. In such …

Excitonic anomalous currents in semiconductor quantum wells

C Ngo, S Priyadarshi, HT Duc, M Bieler, T Meier - Physical Review B, 2023 - APS
Anomalous photocurrents following optical interband excitation and the interaction with a
Terahertz field are investigated in GaAs quantum wells. Our approach is based on the …

Heavy-hole spin relaxation in quantum dots: Isotropic versus anisotropic effects

D Forbes, S Prabhakar, R De, HS Chakraborty… - Physical Review B, 2024 - APS
Non-charge-based logic in single-hole spin of semiconductor quantum dots (QDs) can be
controlled by anisotropic gate potentials providing a notion for making next-generation solid …

Berry phase and Rashba fields in quantum rings in tilted magnetic field

V Lopes-Oliveira, LK Castelano, GE Marques, SE Ulloa… - Physical Review B, 2015 - APS
We study the role of different orientations of an applied magnetic field as well as the
interplay of structural asymmetries on the characteristics of eigenstates in a quantum ring …

Geometric phase and entanglement of Raman photon pairs in the presence of photonic band gap

K Berrada, CH Ooi, S Abdel-Khalek - Journal of Applied Physics, 2015 - pubs.aip.org
Robustness of the geometric phase (GP) with respect to different noise effects is a basic
condition for an effective quantum computation. Here, we propose a useful quantum system …

Electrical manipulation of valley qubit and valley geometric phase in lateral monolayer heterostructures

J Pawłowski, JE Tiessen, R Dax, J Shi - Physical Review B, 2024 - APS
We explore a solid-state qubit defined on valley isospin of an electron confined in a gate-
defined quantum dot created in an area of monolayer MoS 2/WS 2 lateral junction where a …

Influence of random telegraph noise on quantum bit gate operation

J Likens, S Prabhakar, R Lal, R Melnik - Journal of Applied Physics, 2023 - pubs.aip.org
We consider the problem of analyzing spin-flip qubit gate operation in the presence of
Random Telegraph Noise (RTN). Our compressive approach is the following. By using the …

Electric field control of spin splitting in III–V semiconductor quantum dots without magnetic field

S Prabhakar, R Melnik - The European Physical Journal B, 2015 - Springer
We provide an alternative means of electric field control for spin manipulation in the absence
of magnetic fields by transporting quantum dots adiabatically in the plane of two …

Spin relaxation in GaAs based quantum dots for security and quantum information processing applications

S Prabhakar, R Melnik - Nanomaterials for Security, 2016 - Springer
We report new three-dimensional modeling results of the band structure calculation of
GaAs/Al_ 0.3 Ga_ 0.7 As quantum dots (QDs) in presence of externally applied magnetic …

Magnetic Properties of GaSb Quantum Dots Include Spin-Orbit Interaction

OS Bauzha, SP Zagorodnyuk, BB Sus… - 2021 IEEE 11th …, 2021 - ieeexplore.ieee.org
Quantitative numerical calculations of the effect of spin-orbit interaction on the magnetization
and magnetic susceptibility of electrons to low-dimensional quantum dots were presented …