Quantum optics and quantum foundations
Our quantum optics and quantum foundations research looks at how photons – individual massless quanta of light – interact with each other as well as massive particles, such as atoms.
Our work uses photons to test many of the counter-intuitive phenomena at the foundation of quantum mechanics. Phenomena such as quantum superposition, quantum interference and entanglement are also fundamental resources in quantum information processing and quantum metrology.
We aim at developing novel quantum optics experiments to analyse quantum optical phenomena and we use them in quantum information processing, and our research is useful in understanding the fundamental quantum nature of our universe and boosting the development of new technologies.
Our research is regularly published in international journals, such as Nature Journals, Physical Review Letters, New Journal of Physics, Physical Review A, Quantum Information Processing, and Optics Express.
Our research covers the following topics
- Linear and nonlinear optics networks
- Quantum interference
- Multiboson correlations and entanglement
- Quantum optical tests at the interface between quantum mechanics and general relativity
- Atom-light interactions
- Quantum dots
Our work also crosses disciplines with atomic physics, complexity theory, general relativity, biology, medicine, artificial intelligence and environmental science.
Methods and facilities
Our work aims at the theoretical study of novel quantum optics processes and their experimental realisation with the latest technologies.
Along with a supercomputer facility in the ICG, we have a quantum optics lab including lasers, nonlinear crystals, optics and photon detectors, and a time-resolved photoluminescence system.
Collaborations and funders
Recent projects have received funding from the United States Office of Naval Research (ONR), and the United States Army Research Lab (ARL).
We have collaborated with leading scientists across 4 continents, including:
- Professor Mohammad Hafezi, University of Maryland College Park, U.S
- Professor Kurt Jacobs, U.S. Army Research Laboratory
- Professor Michał Karpiński, University of Warsaw, Poland
- Professor. Y.H. Kim, Pohang University of Science and Technology, South Korea
- Professor Frank Narducci, Naval Postgraduate School, Monterey, U.S
- Professor J.W. Pan, University of Science and Technology of China
- Professor Ernst Rasel, Leibniz University Hannover Germany
- Professor Wolfgang P. Schleich, University of Ulm, Germany
- Professor Shih, University of Maryland, Baltimore
- Professor A. White, University of Queensland, Australia
Multiphoton interference and characterisation of single photons in different quantum states in linear optical networks
Publication example: Multiboson Correlation Interferometry with Arbitrary Single-Photon Pure States, Phys. Rev. Lett. 114, 243601 (2015), V. Tamma and S. Laibacher
Entanglement generation in linear optical networks based on inner-mode resolved measurements
Publication example: Symmetries and entanglement features of inner-mode resolved correlations of interfering nonidentical photons, Phys. Rev. A 98, 053829 (2018), S. Laibacher and V. Tamma
Revivals of quantum interference with photons of long coherence time
Publication example: Hectometer revivals of quantum interference, Phys. Rev. Lett. 121, 09360 (2018), M. Rambach, W. Y. Sarah Lau, S. Laibacher, V. Tamma, A. G. White and T. J. Weinhold
The physics of thermal light second-order interference beyond coherence
Publication example: The physics of thermal light second-order interference beyond coherence, Phys. Scr. 93 124010 (2018), V. Tamma
Discover our areas of expertise
Our research is helping to solve issues related to energy harvesting, efficiency and storage, and medical technologies, security and the environment.
Interested in a PhD in Physics?
Browse our postgraduate research degrees – including PhDs and MPhils – at our Physics postgraduate research degrees page.