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Tudor Alexandru Petrescu

Tudor Alexandru Petrescu

Researcher Scientist

Center · CAS

Biography

Tudor Alexandru Petrescu is a researcher whose work focuses on open quantum systems, quantum computing, and superconducting qubit architectures. His research explores dissipative dynamics and decoherence phenomena in quantum circuits, particularly transmon-type qubits and qubits encoded in cat states (cat-qubits). He develops advanced theoretical methods, such as Floquet theory, time-dependent perturbation techniques (Schrieffer-Wolff), and exact numerical approaches (diagonalization of Lindbladians, Floquet-Markov formalism), to analyze interactions between qubits, strong-drive effects, and dissipative stabilization mechanisms. His contributions include the study of chaotic transitions in nonlinear quantum systems, the optimization of high-fidelity quantum gates, and the engineering of reservoirs for autonomous error correction. His work also extends to highly connected qubit networks and topological phenomena in hybrid quantum systems, with potential applications in quantum simulation and metrology.

Publication(s)

PhD supervision

  • 2026 Modeling of superconducting cat qubits under strong fields MALAS--DANZÉ Théo
  • 2023 Tensor network methods for excited circuit-QED systems RUI Emilio
  • 2022 Dynamics and strong-field control of superconducting Josephson junctions CARDE Léon