Quantum Communications and Quantum Engineering Labs
Throughout the history of humanity, we have accomplished countless engineering feats to improve our way of life by exploiting our knowledge of the physical laws. Today, a myriad of opportunities awaits us in the realm of the microscopic world where the counterintuitive quantum theory reigns. It is the Quantum Communications and Engineering focus group’s mandate to close the gap between theory and practice to bring forth cutting-edge quantum technologies that will enrich our quality of life. As such, the focus group conducts ground-breaking research on the implementations of quantum key distribution and quantum random number generation using advanced microelectronics and photonics devices. Supporting these efforts, the focus group dedicates sizeable efforts on theoretical research to provide accurate modelling and reliable analysis for the implementations. This synergy between theorists and practitioners facilitates the exchange and generation of knowledge and ideas, anchoring the focus group on the prime spot for research excellence.
Research Activities
Quantum Information & Communication Theory
Encoding information onto quantum systems empowers one to perform tasks that would be otherwise impossible. Conventionally, information is represented by bits (zeroes and ones) and a multitude of tools were created to store, process and transmit bits. These tools form the foundations that our current digital age was built upon. Moving forward, encoding information onto qubits (quantum bits) promises to offer superior computational prowess and communication with unprecedented security. The focus group capitalise on the extensive studies on quantum information and communication theory to develop novel, effective and efficient methods and techniques for cryptographic, computational & sensing applications.
Quantum Cryptography & Quantum Networks
Research on quantum cryptography by the focus group mainly focuses on the protocol design and experimental investigations that enable robust and high-speed cryptography systems with security guaranteed by the laws of quantum physics. The relevant topics explored under this framework include quantum key distribution, quantum random number generation, quantum sensing, etc. To this end, the focus group develops the state-of-the-art techniques for quantum state generation, manipulation, and measurement at the single-photon level. These investigations would serve as the key components in enabling large-scale, distributed quantum technology in a network topology.
Integrated Photonic Quantum Technologies
To realize the goal of the wide-scale adoption of quantum-enabled technology, coveted features such as compactness, stability and cost-effectiveness is paramount. The focus group seeks to miniaturize the functionalities and components for quantum applications at the nanoscale. Together with a sophisticated protocol design and thorough security analysis, the security, feasibility and practicability of our chip-based quantum technology is further backed by rigorous experimental investigation and innovative chip design.
Academic Staff:
Assistant Professor Charles Lim Ci Wen - charles.lim@nus.edu.sg
Assistant Professor Gong Xiao - elegong@nus.edu.sg
Associate Professor Marco Tomamichel - marco.tomamichel@nus.edu.sg
Location:
Quantum Communications Lab: E4-06-01
Quantum Engineering Lab: E4-02-04 (under renovation)
Contact Information:
Person to contact: Assistant Professor Charles Lim Ci Wen
Office address: E4-05-19
Email: charles.lim@nus.edu.sg
Contact Number: +65 65162127