Dr Nicolas Gheeraert is a physicist whose work bridges quantum technologies, fundamental physics, and interdisciplinary science. Over the past thirteen years, he has lived and conducted research in France, the UK, Japan, and India, moving between theory and experiment. Early in his career, he also explored how life adapts under extreme environmental conditions, publishing with microbiologists on the physical limits of microbial survival—an experience that shaped his interest in crossing traditional disciplinary boundaries.

His PhD at the Institut Néel (CNRS) in France, supported by the Raman–Charpak program of CEFIPRA, sparked a long-term collaboration with the Tata Institute of Fundamental Research in Mumbai. From there, his path took him to the University of Tokyo (RCAST), where he co-developed ideas for controlling the flow of quantum information, including the design of a directional microwave photon emitter, later brought to experimental realization at MIT. In recent years, his projects have ranged from improving superconducting qubit readout with colleagues at INRIA Paris and Sorbonne Université to applying artificial intelligence to noise analysis in quantum processors with collaborators at IIT-Madras.

After completing his PhD, Dr Gheeraert held research positions at the University of Tokyo and TIFR before moving into faculty roles at IIT-Madras and now Krea University. Teaching and mentoring have been an important part of his career: he has taught across undergraduate and postgraduate levels, guided student research, and enjoyed sharing science with wider audiences through public lectures. He has also contributed to building scientific communities, organizing events such as the PiQuST 2023 conference on quantum technologies.

Publications

• Expedited noise spectroscopy of transmon qubits. Bhavesh Gupta, Vismay Joshi, Udit Kandpal, Prabha Mandayam, Nicolas Gheeraert, Siddharth Dhomkar.Advanced Quantum Technologies (2025), https://doi.org/10.1002/qute.202500109
• Programmable directional emitter and receiver of itinerant microwave photons in a waveguide. Nicolas Gheeraert, Shingo Kono and Yasunobu Nakamura. Phys. Rev. A 102, 053720 (2020), https://link.aps.org/doi/10.1103/PhysRevA.102.053720
• Multiplexed readout of four qubits in 3D circuit QED architecture using a broadband Josephson parametric amplifier. Suman Kundu, Nicolas Gheeraert, Sumeru Hazra, Tanay Roy, Kishor V. Salunkhe, […], R. Vijay Appl. Phys. Lett. 114, 172601 (2019), https://doi.org/10.1063/1.5089729
• A tunable Josephson platform to explore many-body quantum optics in circuit-QED. Javier Puertas Martínez, Sébastien Léger, Nicolas Gheeraert, […], Nicolas Roch npj Quantum Information 5, 19 (2019), https://doi.org/10.1038/s41534-018-0104-0
• Quantum non-linearities of a qubit ultra-strongly coupled to a waveguide. Nicolas Gheeraert PhD Thesis (2018), http://hal.univ-grenoble-alpes.fr/tel-02004531v1
• Particle Production in Ultra-Strong Coupling Waveguide QED. Nicolas Gheeraert, […], Nicolas Roch, Harold U. Baranger, and Serge Florens Phys. Rev. A 98, 043816 (2018), https://doi.org/10.1103/PhysRevA.98.043816
• Spontaneous Emission of Schrödinger Cats in a Waveguide at Ultrastrong Coupling. Nicolas Gheeraert, Soumya Bera, Serge Florens New J. Phys. 19, 023036 (2017), https://doi.org/10.1088/1367-2630/aa5dea
• Impact of Quantized Vibrations on the Efficiency of Interfacial Charge Separation in Photovoltaic Devices. Soumya Bera, Nicolas Gheeraert, Simone Fratini, Sergio Ciuchi, Serge Florens Phys. Rev. B 91, 041107 (2015), https://doi.org/10.1103/PhysRevB.91.041107
• The Limits for Life Under Multiple Extremes. Jesse P. Harrison, Nicolas Gheeraert, Dmitri Tsigelnitskiy and Charles S. Cockell Trends in Microbiology 21, 204–212 (2013), https://doi.org/10.1016/j.tim.2013.01.006

Teaching Modules

• Fields I (PHYS224)
• Fields II (PHYS225)
• Mathematical Methods II (PHYS202)
• Energy and Entropy (PHYS236)
• Quantum Optics (PHYS361)
• Scientific Reasoning (KCCS121)