Physics

Prof GONG Jiangbin

Head of Department

“We continue to nurture high-quality graduates with multiproblem-solving skills. We also aim to transform technologies and change how people think by delivering more research breakthroughs.”

Shaping Future Talent

The Department of Physics saw good progress in our efforts to scale up postgraduate educational offerings. We launched our second self-funded Master’s programme, the Master of Science (MSc) in Physics and initiated the integrated degree 3+2 joint programme with Chongqing University and Southeast University, where students spend their final year of Bachelor of Science studies and one year on their MSc at NUS. We also launched the NUS-Tianjin University (TJU) dual Master’s programme in physics, offering students a two-year programme at NUS and the NUS-TJU Joint Institute in Fuzhou, China.  

NUS-TJU Joint Institute in Fuzhou, China

The first batch of our MSc in Physics for Technologies (MPT) students graduated in June 2022, armed with skills in problem-solving and analytical thinking for the technology-driven economy.

Under the theme ‘Big Data in Physical Sciences’, we introduced three new graduate modules, namely: Applied Machine Learning and Data Science, Bayesian Statistics and Machine Learning, and Complex Systems Analysis and Modelling. These modules equip our graduates with the topical skills and knowledge for data-driven research and industries.

In addition, we designed seven Science Inquiry modules, launched in Academic Year 2022/2023 under the Common Curriculum offered by the College of Humanities and Sciences (CHS).

We also stepped up efforts to bring physics to youths. For instance, we offered two quantum computing workshops at Yio Chu Kang Secondary School and Yishun Innova Junior College, in January and May 2022 respectively, as part of the Temasek Foundation-NUS Youths for SG: Building a Shared Future series.

It was also the first time we organised ‘Illustratum’, a competition that taps on youth creativity to promote physics.

The 16th Singapore-China joint symposium on research frontiers in physics held in December 2021 was broadcast live, reaching thousands of students and researchers from China.

Shaping Future Solutions

This year, we took our research to the next level, with groundbreaking work from quantum physics at extreme conditions to exotic condensed matter phenomena and theory.

Indium near absolute zero

Trapped, ultracold atoms allow scientists to study a range of exotic quantum phenomena, such as superconductivity and superfluidity. However, it is difficult to achieve these conditions for many metallic atoms. For the first time, Asst Prof Travis NICHOLSON and his colleagues have successfully cooled indium atoms to temperatures near absolute zero, by using magnetic fields and lasers to trap and cool these atoms. This result was published in Physical Review A (June 2022) and highlighted in Nature (June 2022).

The rise of the superconducting nickelate era

Superconductivity is a quantum state of matter where materials have no electrical resistance and can completely expel magnetic fields. This could have a profound impact on the development of future technological applications. After his success in developing phase diagramme of neodynium nickelate superconductors, Prof ARIANDO and his team demonstrated, for the first time, superconductivity in calcium doped infinite layer lanthanum nickelates. This closed a two-decade search for the sister of copper-based superconductors and also opens up a new era of research in high temperature superconductors. This work was published in Nature Communications and Science Advances, consecutively (February 2022).

A new class of matter with enigmatic quantum information properties

A key focus of condensed matter physics is the study of new states of matter. States that are immune to noise or imperfections are even more sought after for their stability. Asst Prof LEE Ching Hua discovered a new type of robust matter that only exists in driven non-equilibrium media and which results from a completely new mechanism beyond topology. Interestingly, such states, known as ‘exceptional bound states’, also exhibit curious quantum information properties, possessing a negative amount of quantum entanglement. This work was published in Physical Review Letters (January 2022).

Shaping Future Society

As part of the Faculty’s regional collaboration programme, STEM (Science, Technology, Engineering and Mathematics) for University Educators in ASEAN (Association of Southeast Asian Nations), Prof SOW Chorng Haur delivered two eWorkshops on science communication and STEM education to around 60 educators from Indonesia and Thailand in October 2021.

Our alumni contribute to society in various ways, including fighting climate change and advancing technological breakthroughs, to name a few.

Quantum cybersecurity chief

“Next generation quantum-resistant communication networks are the key towards building an unhackable Internet for data security.”

Our alumnus Asst Prof Charles LIM (2010) recently joined JPMorgan Chase as its Global Head of Quantum Communications and Cryptography, where he will apply his expertise to protect the financial system from quantum-supremacy threats. He was earlier involved in Singapore’s efforts to create quantum-resistant digital solutions. He also contributed to international efforts to standardise quantum-security techniques.

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Future-proofing her career

“The MPT programme offers many research topics, ranging from applications in industries to relevant topics for students preparing for further (graduate) study. The research facilities gave me the means to master more experimental skills and gain deeper understanding of device fabrication processes.”

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Our inaugural CHS cohort

“Physics – the study of understanding the vast and mysterious universe we live in – gives me great personal joy and has extended into my academic interests.”

Exposure to new and varied fields of knowledge has always motivated Year 1 student Srinjoy MAJUMDAR. The College of Humanities and Sciences (CHS) offers him both the breadth and depth of academic opportunity. He can dive deep into the physical secrets of the cosmos, as well as the mathematical mechanisms used to study them and the logic embodied by abstract mathematics in a more epistemological context. At the same time, he can explore quantitative finance and economics to understand the basic tenets of subjects he previously studied and gauge his interest in them.

Srinjoy reads Double Majors in Physics and Mathematics and Minors in Quantitative Finance and Economics.

Note
CHS students’ course combinations are accurate as at Academic Year 2021/2022

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Budding educator

“I guided students along their first course in coding. It was rewarding to see what they managed to do by the final project.”

Year 3 student Hillson HUNG, who is also part of the Special Programme in Science (SPS), was a mentor under the inaugural Undergraduate Teaching Opportunities Programme by Science, which enables students to hone their teaching skills under the supervision of experienced teachers. He helped to develop teaching materials for a new SPS module – Working on Interdisciplinary Science, Pythonically. He also graded some assignments, gave project consultation sessions for students, prepared a pre-lecture video and taught one of the lectures.  

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Celebrating research excellence

Prof Ariando received the Faculty’s Outstanding Scientist Award (2021) for his leading role in the birth of a new nickelate research area in infinite layer lanthanide nickelate superconductors.

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Budding scientist

Year 4 student WEE Wen Jun’s Final Year Project (FYP) on using reconfigurable tweezers to rearrange atoms earned him the Outstanding Undergraduate Researcher Prize (2022). Neutral atom arrays are growing in popularity as a platform for quantum computations, but it is difficult to prepare defect-free atom arrays for quantum simulations of advanced materials. By optimising the process to form defect-free triangular arrays, Wen Jun’s work opens the door to further studies of frustrated spin systems, where certain spins are in the same direction, with unprecedented control.  

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From carbon dioxide to sustainable fuel

“You cannot ‘unbreak’ a broken egg. Likewise, this is what will happen if excessive carbon dioxide continues to be released and not enough is done to combat the issue.”

Physics alumnus (2005) Dr Daniel ONG’s research interest started with photocatalysts – a material that uses light to accelerate a chemical reaction. This later extended to other types of catalysts for abating carbon dioxide emissions. His work in transforming greenhouse gas to value-added products like olefins and sustainable fuels could reduce our dependency on fossil fuels. He has since scaled up to commercialise this technology, while also filing patents for CO2-to-Olefins together with a multinational corporation, paving the way for industries to use net-zero carbon products.

Dr Ong currently heads the Science and Engineering Research Directorate, Agency for Science, Research and Technology (A*STAR).

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Breaking new ground in psychometrics

“We create a better hiring experience to help companies avoid bad hires. This helps businesses with talent management and retention.”

During the severe acute respiratory syndrome (SARS) outbreak in 2003, Mr Andrew CHAI (Physics, 1992) pioneered a remote manpower outsourcing consultancy to help recruiting managers identify the best candidates. Subsequently, he developed Drawmetrics, a proprietary assessment tool to analyse the fit between human values. This enables employers to make better-informed hiring decisions. 

His psychometrics assessment tools are validated by psychologists and have helped businesses to save costs stemming from hiring errors. Drawmetrics was trademarked last year.

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New bent-toed gecko species in Timor-Leste

“We have barely scratched the surface of Timor-Leste’s biodiversity. New discoveries can have profound impacts on conservation and policy-making.”

In August 2022, we led an expedition to Timor-Leste in collaboration with Conservation International and the government of Timor-Leste. The Museum’s herpetologist, Dr CHAN Kin Onn, discovered a new species of bent-toed gecko which was named Cyrtodactylus santana, in reference to the Nino Konis Santana National Park, in which the gecko was discovered.