Theo A. Costi

Theo A. Costi is a Researcher at the Peter Grünberg Institute for Theoretical Nanoelectronics (PGI-2/IAS-3), Forschungszentrum Jülich, Germany. He holds a PhD in Theoretical Solid State Physics from Oxford University and has held academic positions at institutions including Karlsruhe, Augsburg, Cologne, and Imperial College London.

Education:

• 1978-1981: B.Sc. in Mathematical Physics, Sussex University
• 1981-1985: DPhil in Theoretical Solid State Physics, Oxford University (Supervisor: Prof. Sir R.J. Elliott)

Research Interests: Costi specializes in strongly correlated electron systems, with a focus on Kondo effects, quantum impurity models, and thermoelectric transport in nanoscale devices. His work bridges ab-initio and model Hamiltonian approaches, exploring phenomena like orbital selective Mott transitions and quantum dissipation.

Article Trends: His recent publications (2010–2025) emphasize non-equilibrium dynamics and time-dependent spectral functions using numerical renormalization group (NRG) methods, particularly in Kondo systems and quantum dots. Collaborative works highlight applications in spintronics, topological materials, and quantum thermodynamics.

Scientific Collaborations: Costi collaborates with leading groups such as:

• Prof. Achim Rosch (Cologne): Quantum Quenches, Correlated Systems
• Prof. Immanuel Bloch (Munich): Optical Lattices, Fermionic Atoms
• Dr. Jan von Delft (Munich): NRG Applications, Dephasing
• Dr. Sabine Andergassen (Aachen): Thermoelectric Quantum Dots

Teaching & Supervision: He has supervised multiple PhD and Diploma/BSc theses on topics ranging from Kondo screening to thermoelectric transport. Costi has also co-taught courses in quantum mechanics and solid state physics.