Research Focus

FOCUS: 

• Optimized Integration for Peak Performance: We are enhancing the synergy between integrated Quantum-Classical Computing Platforms to not only achieve optimal performance but also to unlock practical quantum advantages, laying the groundwork for pioneering software research in addressing growing computing infrastructure needs.
• Focused Application-Oriented Research: Our efforts are concentrated on simulations, optimisation, and quantum machine learning to drive practical quantum advancements across vital application domains like new material design and drug discovery.
• Resilient and Versatile Quantum Software Systems: We are committed to developing robust and versatile full-stack quantum computer software systems, ensuring they are tailored to support a diverse range of applications while guaranteeing seamless integration with existing technologies.
• Innovative Quantum Algorithms and Theoretical Breakthroughs: Our team is at the forefront of creating and implementing cutting-edge quantum algorithms, all backed by significant theoretical breakthroughs that expand the possibilities of quantum computing and quantum information science.
• Advanced Quantum Control: We are advancing the development of robust quantum control protocols, aiming to manipulate quantum systems to achieve desired outcomes precisely and enable quantum advantages. This is made possible by leveraging our innovations in high-performance classical emulation methods and control pulse optimisation algorithms.
  

FOCUS:

To develop critical device components for integrated quantum photonics platforms towards developing a fully integrated photonics quantum computer. This is divided into three areas: 

• Thin-film lithium niobate platform
  
• Nanophotonic devices for generating and controlling quantum light
• Integrated photodetectors

FOCUS:

To develop quantum technologies for biomedical and physical sensing, which includes:

• Quantum Metrology with Undetected Photons (QMIP)
  
• Precise phase measurements via quantum interferometry
  

Infrared metrology finds wide application ranging from gas sensing for industrial safety purposes, biomedical diagnostic imaging, food safety and more. This is due to fingerprint absorption properties of numerous molecules in the infrared region.

Here, we develop infrared metrological technologies, such as spectroscopy and hyperspectral imaging, based on quantum mechanical principles of entanglement and interference, specifically a phenomenon called ‘induced coherence without induced emission’. As a result, material information, in the infrared, are measured via visible light detection. This enables the use of low-cost, non-export-controlled, well-established visible light sources and detectors, thus leading to significant cost-savings and operational flexibility.

Figure 1: Sketch of a quantum interferometric hyperspectral scheme and hyperspectral example images.

• Magnetic sensors based on vapor cells for electromyography;
  
• High accuracy vector magnetometer in high radiation environment.
  

Ultra-sensitive magnetometers can be used in diverse applications ranging from brain/heart imaging to mineral and geomagnetic surveys. By using ultra-sensitive magnetometers, it is also possible to envision performing nuclear magnetic resonance (NMR) or magnetic resonance imaging (MRI) without using large and expensive magnets, which can significantly decrease the cost of NMR and MRI machines while increasing their portability. Such magnetometers can also be used to probe the nuclear quadrupole resonance (NQR) of various chemicals, which can be useful for pharmaceutical control applications, as well as in explosives or narcotics detection.

Here, we are developing alkali atomic magnetometers as the next-generation of ultra-sensitive magnetometers that are capable of reaching fT/sqrt(Hz) sensitivities without needing the cryogenic cooling that current state-of-the-art Superconducting Quantum Interference Devices (SQUIDs) require. This translates to significant cost-savings and flexibility in operation, which can not only enhance many of the applications listed above, but also unlock heretofore unexplored applications.

FOCUS:

To realise high quality device-ready 2D semiconductor material stack with dielectric encapsulation for valley-pseudospin qubits, and hence develop qubit gates in 2D transition metal dichalcogenides (TMDCs), e.g., MoS2, WS2.

We are interested in the development of quantum materials and devices towards a scalable quantum computer. Some of the key challenges are to obtain a long coherence time, low error rate and a scalable platform. We exploit the unique electrical and optical properties in atomically thin two-dimensional transition metal chalcogenides (TMDCs), such as spin-valley interlocking, spin-orbit coupling and potential compatibility with standard CMOS processes to tackle these challenges.

FOCUS:

•  2.5D/3D Heterogeneous Integration, including TSV, Si interposer embedded with superconducting interconnects, 3D stacking, passive devices
•  Surface Electrode Trapped Ions with integrated SiN waveguide
•  RSFQ Design and Fabrication
•  CMOS characterization, Digital Control and RF Read-Out Circuits, ECC for operation at cryogenic temperatures