Advancing the frontiers of quantum science and engineering

Abstract: Hybrid quantum-classical computing architectures offer a promising path forward for exploiting the potential advantages of quantum computation within the constraints of noisy intermediate-scale quantum (NISQ) hardware. Trapped ions represent a promising candidate among emerging hardware platforms for the NISQ era. In this thesis, we provide an introduction to the basic concepts and experimental details of a trapped ion based quantum classical hybrid system followed by the main topic of this thesis. Algorithmic fidelity, as a figure-of-merit is exploited for a full-stack quantum classical hybrid system demonstrating certain specific algorithms on a single ion with two or higher dimensions. The system architecture encompasses quantum control, classical pre- and post-processing, enabling effective integration between quantum and classical resources. Benchmarking is conducted using the following algorithms: a single qubit (2D) quantum classifier algorithm, the Clauser–Horne–Shimony–Holt (CHSH) inequality for a single quatrit (4D) and finally, a two qubit Grover's search algorithm implemented on a single quatrit (4D). The presented benchmarking framework establishes a reference point for assessing the capabilities of single ion hybrid quantum systems and supports future development in resource-constrained quantum architectures. Finally, the thesis outlines the progress made in transitioning from a single trapped 138Ba+ to a single trapped 137Ba+ as the quantum processing unit (QPU) providing longer coherence time, higher fidelity and access to higher dimensions. The last point enables the implementation of multiple qubit/qudit encodings, aligning with the Optical, Meta-stable and Ground (OMG) architecture, which offers significant flexibility in qubit/qudit representation.

Abstract: This talk traces the development of quantum physics throughout the 20th century, emphasizing its intricate entanglement with economic, political, and cultural contexts. Unexpected associations—linking streetlights to Planck’s quantum of action, lasers to ballet dancers, and timekeeping to ion traps—serve as narrative threads illustrating the multifaceted nature of quantum discoveries. These examples, drawn from the “Light and Matter” exhibition at the Deutsches Museum in Munich, Germany, offer historical vantage points from which to reflect on the evolving landscape of quantum technologies today.

Abstract: "Quantum Conversations – It’s Here, There and Everywhere" brings together leading scientists, artists, technologists, and educators to explore the transformative potential of quantum science.

This half-day symposium invites audiences to journey through the fundamentals of quantum mechanics, its artistic interpretations, and its real-world applications. From the multiverse to quantum-safe chips, the programme offers adynamic and accessible introduction to a field that is reshaping how we understand and interact with the world.

The symposium opens with Quantum 101 — Beyond the Multiverse, a primer by Dr. Alexander Hue from the Centre for Quantum Technologies, followed by Entangled Expressions, a panel that explores how artists and scientists collaborate to make quantum phenomena visible and experiential. The final session, Everyday Quantum, features speakers from the National Quantum Officeand SGInnovate, highlighting Singapore’s growing quantum innovation ecosystem.

Ticketed as a keynote programme of In the Ether — A Festival of Quantum Science and Technology. 

https://www.marinabaysands.com/museum/events/in-the-ether/quantum-conversations.html

The workshop concerns both the theoretical and experimental aspects of this subject. This workshop aims to build connections between young scientists and promotes open discussions between participants. As such, 30-minute talks by all participants will be held at the beginning of the week, leaving two full days open for discussions on the presented work (and beyond).

Please note that participation in this workshop is by invitation only.

Quantum Techniques in Machine Learning (QTML) is a leading international conference at the forefront of quantum science and machine learning. Held annually, it brings together researchers and industry experts to explore how quantum computing can transform learning, optimisation, and data-driven discovery. CQT is proud to support planning for the ninth edition of this international conference, QTML 2025, to take place in Singapore 16-21 November. Registration is now open.