Designing new quantum material for future technologies

Quantum mechanics permits far more exotic states of matter than the gases, liquids, solids, and plasmas used in current technology.

This program aims to realise new phases of quantum matter by scaling up today’s isolated quantum components and engineering highly entangled, strongly interacting quantum systems, with individual control and measurement of each component.

Our researchers will build large-scale arrays of trapped ions, electrons in semiconductor devices, Josephson junctions in superconducting circuits, and photons produced by quantum dots and photonic bandgap cavities. Such quantum arrays with tens or hundreds of individual components can be configured to create complex quantum materials never realised in nature.

These materials will have many applications, notably performing analogue simulations to solve hard problems in physics and chemistry: technically, solving strong-correlation problems to model exotic materials like superconductors, and understand transition-metacompounds, bond-breaking and single-molecule magnets.

Within the designer quantum materials program, our research projects include:

  • Realisation of topologically ordered state using a two-dimensional array of coupled semiconductor quantum dots
  • Analogue quantum simulation using open loop quantum control of trapped ions
  • Artificial field theories using fluxonium lattices
  • Large scale entanglement quantum photonics

Facts

Some quantum materials, like topological insulators, can conduct electricity on their surface while remaining insulating inside. This strange behavior arises from the material’s quantum mechanical properties and symmetry protections – the electrons on the surface act almost like they’re massless, leading to robust, lossless conduction that could be useful for next-gen electronics and quantum computing.

The future of quantum materials research

Research into harnessing quantum many-body physics and the precise control of individual quantum systems represents a frontier in the development of novel quantum materials. Quantum many-body physics explores how particles such as electrons, atoms, or spins interact in large ensembles, leading to emergent phenomena that cannot be explained by simply examining individual particles. By studying these collective behaviors, researchers can uncover exotic phases of matter – such as topological insulators, spin liquids, and superconductors – that hold the key to next-generation quantum technologies. Understanding these complex interactions at a fundamental level allows scientists to predict and design materials with tailor-made quantum properties.

Exquisite control over individual quantum systems, such as trapped ions, neutral atoms, and superconducting qubits, has advanced dramatically in recent years. This level of control makes it possible to simulate and manipulate many-body quantum systems with unprecedented precision. By engineering interactions between individual quantum units, researchers can construct synthetic quantum matter that mimics the behavior of more complex, naturally occurring systems. These engineered platforms not only serve as testbeds for theoretical models but also provide insights into how to stabilise and protect fragile quantum states – an essential step toward scalable quantum computing and communication technologies.

The synergy between quantum many-body research and fine-grained quantum control is laying the foundation for building new quantum materials from the bottom up. By leveraging both deep theoretical understanding and experimental finesse, scientists are beginning to design and assemble materials where quantum entanglement and coherence are intrinsic and robust features. These custom-built quantum materials have the potential to revolutionise fields ranging from condensed matter physics to information science, enabling devices and systems that surpass classical limitations. In essence, we are witnessing the birth of a new materials paradigm where quantum effects are not just a byproduct but the very fabric of material function and utility.

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