QuEST Meeting 2025

QuEST Group Meeting 2025

Every Monday, 12 noon (Theoretical and Computational Physics Lab)

Presenter: Nurisya Mohd Shah

Date: 7 Feb 

Title: Overview of Noncommutative Qubit Foundation

Abstract:

Qubits are the fundamental building blocks of quantum computing, typically described using the conventional framework of quantum mechanics. However, what happens when we step beyond this familiar setting and explore qubits in a noncommutative (NC) framework? This talk provides an introductory overview of NC qubits, highlighting the motivations behind this perspective and the kinds of mathematical structures involved. We will discuss why this approach is worth considering, what unique properties emerge, and how it could offer new insights into quantum theory.

Presenter: Ahmad Hazazi
Date: 18 Feb 

Title: Holomorphic quantization of qubit geometry 

Abstract:

The Riemann sphere is taken as the classical phase space of qubit geometry and then quantized using canonical group quantization. By adopting natural holomorphic polarization, holomorphic spin angular momentum operators is constructed, reproducing the standard SU(2) algebra with interesting geometric properties. This talk highlighting the qubit geometry from holomorphic quantization perspectives. The motivations behind this idea is that qubits and qubit operations are often represented elementarily as matrices and there seems to be a disconnect between such formalism with the traditional wave mechanics formalism of quantum theory.  We reconnect with the wave formalism through the process of quantization and there are advantages of having the various different representations. We will discuss why this approach is worth considering, what unique properties emerge, and how it could offer new insights in studying quantum  entanglement and other foundational issues in quantum theory.

Presenter: Choong Pak Shen
Date: 3 March 

Title: PPT States

Abstract: 

In this talk, we will explore a weak-entangled class of quantum states and its entanglement properties.

Presenter: Umair Abdul Halim

Date: 7 April

Title: The Role of Quantum Potential In Generating Chaotic Bohmian Trajectories

Abstract: 

Bohmian mechanics is an alternative formulation of quantum mechanics that maintains the notion of a well-defined trajectory governed by the wave function. The extra potential in this framework called quantum potential plays an important role in determining the dynamics of the Bohmian trajectory. In this study, we examine numerically the characteristics of a rational frequencies system near a moving nodal point and how quantum potential plays an important role in generating chaotic motion for a specific mixture of wavefunction amplitudes. We show the transition from a regular to a chaotic trajectory when there is an abrupt change of quantum potential near the nodal point. This phenomenon occurs in the centre where the value of quantum potential is much higher than classical potential.

Presenter: Chan Kar Tim

Date: 21 April

Title: A Review: Machine Learning for the Expedited Screening of Hydrogen Evolution Catalysts for Transition Metal-Doped Transition Metal Dichalcogenides

Abstract: 

2 dimensional transition metal dichalcogenides (TMD) have gained attention as potent catalyst for Hydrogen Evolution Reaction (HER).  In this work, the authors have devised a predictive model for Gibbs free energy for hydrogen adsorption ( ∆𝐺_𝐻) for transition metal (TM) doped TMD using machine learning method. To train the model, ∆𝐺_𝐻 for 150 set of TM@TMD have been calculated using Density Functional Theory (DFT). For validation, 15 external test sets are used. The prediction is good and the results have been successful in determining 3 most important parameters.

Presenter: Muhammad Imran Mustafa Abdul Khudus, UM 

Date: 19 August

Title: Overview of Parametric Processes

Abstract: 

We will review classical parametric processes, beginning from the nonlinear susceptibility and including second and third order effects. We shall also consider some practical issues in simulating these processes as well as some experimental consideration in realizing some of these processes

Presenter: Valentine N.

Date: xx Sept

Title: tba

Abstract: 

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Presenter: Muhammad Amsyar

Date: xx Oct

Title: tba

Abstract: 

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