Dr. Irinel Chiorescu, Professor
Education and Training:
- 1996: B. S. in Science, “Al. I. Cuza” University, Iasi, Romania
- 1997: D.E.A., Joseph Fourier University, Grenoble, France
- 2000: PhD in Physics, Joseph Fourier University, Grenoble, France
- 2000-2004: Post-doctoral Researcher, Technical University of Delft, Netherlands
- 2004: Post-doctoral Researcher, Michigan State University
Tell us a little about your background – where did you receive your undergraduate / graduate degrees.
As an undergraduate at Iasi University, I developed a strong interest in magnetic phenomena, especially in the dynamics of monodomains in nanoparticles. During those times I understood the importance of combining both experimental and numerical skills. A fellowship abroad during my undergraduate years inspired me to pursue research in magnetism at graduate level in Grenoble, a major science hub with world class tools such as a synchrotron, nuclear reactors, high magnetic fields, cryogenics, sensitive equipment, etc. which is on par with the diverse interests of the scientists working there. During my first postdoc in Delft, I did a partial switch on my research interests and focused on superconducting quantum bits (flux qubits). We built quantum devices that could be described using Hamiltonians, having thus significant similarities with the quantum magnets studied in my PhD, but the devices were macroscopic in size. This research blended quantum mechanisms and engineering in a unique way. After moving to the Michigan State University for my second postdoc, I worked on nanoscale magnetism. The research project combined aspects of quantum engineering and dynamics of magnetic nanoparticles.
When did you join FSU? What made you choose your university to build your research program?
The spring semester of 2005 marked the beginning of my career as an FSU-Physics faculty affiliated with the National High Magnetic Field Laboratory (or MagLab). As a postdoc searching for a faculty position, I explored the existing research directions and experimental capabilities at FSU. It was exciting to see the expertise accumulated in nanoscience and the ongoing research projects of faculty located both in campus and at MagLab. Tallahassee’s reputation as a family-friendly city with good public schools also made it appealing. Overall, it felt like an opportunity I could not pass up.
When did you become interested in quantum research? Who or what inspired you?
My interest in quantum research began as an undergraduate studying the magnetic phenomena. It all started with classical aspects of magnetism, things that can be observed in large magnets. Curiosity led me to explore what happens at smaller and smaller scales.
I was fortunate to have the opportunity to work in a world-renowned micro-magnetism group at the time, and I learned about classical magneto-dynamics in nanoparticles. Then I wanted to learn about such topics translated to even smaller scales, such as atoms and molecules. And that’s when “quantum” kicked in.
What are your current research interests? Could you give an example of some recent result that you feel especially passionate about?
My research laboratory is located at MagLab where we set up experiments dealing with the quantum nature of atomic or molecular spins. We design and fabricate quantum devices out of superconducting thin films which are then placed in very low temperatures, high magnetic fields and microwave fields. Such devices act as highly sensitive detectors able to give us information about changes in the quantum state of a spin. Recently, a collaborative effort (experiment, theory, large scale simulations) demonstrated a new method to create long lasting quantum operations controlled by two simultaneous microwave fields instead of one. Aside from the technological impact, related numerical simulations indicated a delicate synchronous dance between quantum objects, at the microscopic scale. In another recent study, we were able to produce a coupling between a spin and a photon, strong enough to split the system’s energy levels: the system acted as one rather than two distinct physical objects. This result shows a path to build a quantum memory when a photon can leave an imprint of its quantum state to a spin placed on a chip.
How would you describe your research to the general public? Why is your topic important?
Quantum science is one of the fastest growing and most transformative areas of modern physics and technology. Our research activities combine experimental and numerical techniques related to quantum dynamics of spins, quantum engineering, low noise experiments and nanofabrication. The focus is to design quantum devices able to control and detect coherence in various spin systems. A quantum spin is a sort of compass which can be oriented in only fixed positions, but its quantum nature allows us to create a superposition of such orientations. For instance, the most basic quantum spin is that of an electron and can be either aligned parallel or antiparallel to a magnetic field. Using microwave radiation, one can put the spin in a superposition of these two orientations which remains alive during the “coherence” time. In short, we study how tiny magnetic “spins” can be controlled, combined and connected to light particles called photons. Learning to do this opens the door to powerful new technologies like quantum computers, ultra-secure communication systems, and sensors far more sensitive than anything we have today. Beyond building these future devices, our work also trains the next generation of scientists and engineers who will carry quantum technology from the lab into everyday life.
What do you think about the future of quantum research? How can FSU contribute to that future?
Quantum research is expanding at an unprecedented pace and will continue to see a dramatic increase in scope and reach. While co-existing with other fields, quantum research will surpass fields such as nuclear techniques or nanoscience. Quantum mechanics is centuries-old and already influences every aspect of modern science. In the first period of its existence, quantum research had to crystallize its goals and search for avenues to reach its objectives, while creating a clear distinction from previous quantum endeavors. Given the importance and resources placed in quantum research, it was once anticipated – and has now been proven – that its outcomes will have broad impacts, not only on the quantum information field but also on many other areas of technology. The demand for high-performance, low-noise electronics has sparked a technical revolution – improving the sensitivity and speed of laboratory electronics, enabling devices that can operate at extremely low temperatures, and inspiring innovative cabling solutions, among many other advances. The FSU research hub is poised to find its place in this emerging quantum landscape, building on past achievements and reach for new horizons. The future is ours to shape, and the possibilities are well within our grasp.
What are your interests outside of research? What do you like to do in your free time?
Outside work, I enjoy spending time with my family and exploring the many attractions in and around Tallahassee. When possible, I go cheer for our Seminoles. I also enjoy biking, hiking local trails, and occasionally dusting off my photography equipment.