I study superconducting circuits and hybrid devices in which superconductors are combined with semiconductors and magnetic materials. Topics include protected and gate-tunable superconducting qubits, Josephson junctions with unconventional current-phase relations, quantum-dot chains, and topological superconductivity, often in collaboration with the groups that build and measure these devices.

Transport measurements are the main window on nanoscale devices. I develop theory for nonlocal tunneling spectroscopy, conductance-matrix symmetries in multiterminal devices, proximity effects, and Andreev states in Josephson junction arrays, together with numerical tools to extract microscopic parameters from experimental data.

Altermagnets combine compensated magnetic order with spin-split electronic bands. I study how spin textures act as emergent gauge fields on electrons, producing anisotropic transport and linear dichroism, how altermagnetism coexists with superconductivity, and how quantum dots in altermagnets can host all-electrical, dephasing-protected spin qubits.