40 citations · 207 across the 15 of their papers we have counts for
15 papers
All-electrical dephasing-protected spin qubits in altermagnets
José Carlos Abadillo-Uriel, Andrea Maiani, Alberto Cortijo +2
We propose altermagnetic semiconductors as a platform for field-free, all-electrically controlled spin qubits in gate-defined quantum dots. The momentum-dependent spin splitting of…
Emergent Gauge Fields and Linear Dichroism in Spin-Textured Altermagnets
Andrea Maiani
Spin textures are ubiquitous in antiferromagnets, yet their consequences for altermagnets remain largely unexplored. We show that smooth spatial variations of the Néel order act on…
Directional conductance of Andreev crystals in hybrid Josephson junction arrays
Anders Enevold Dahl, Andrea Maiani, Max Geier +2
Andreev bound states are coherent electron-hole superpositions that form in a normal metal through repeated Andreev reflection at a superconducting interface. When the length of a…
Impurity states in altermagnetic superconductors
Andrea Maiani, Rubén Seoane Souto
Altermagnetic superconductors offer the possibility of exploring unconventional superconductivity, including topological states and finite-momentum superconductivity, with promisin…
Gatemonium: A Voltage-Tunable Fluxonium
William M. Strickland, Bassel Heiba Elfeky, Lukas Baker +6
We present a new style of fluxonium qubit, gatemonium, based on an all superconductorsemiconductor hybrid platform. The linear inductance is achieved using six hundred planar Al-In…
Percolative supercurrent in superconductor-ferromagnetic insulator bilayers
A. Maiani, A. C. C. Drachmann, L. Galletti +4
We report tunneling spectroscopy and transport measurements in superconducting Al and ferromagnetic-insulator EuS bilayers. The samples display remanent spin-splitting, roughly hal…
Nonsinusoidal current-phase relations in semiconductor-superconductor-ferromagnetic insulator devices
Andrea Maiani, Karsten Flensberg, Martin Leijnse +3
Coherent tunneling processes of multiple Cooper pairs across a Josephson junction give rise to higher harmonics in the current phase relation. In this work, we propose and study Jo…
Orbital-free approach for large-scale electrostatic simulations of quantum nanoelectronics devices
Waldemar Svejstrup, Andrea Maiani, Kevin Van Hoogdalem +1
The route to reliable quantum nanoelectronic devices hinges on precise control of the electrostatic environment. For this reason, accurate methods for electrostatic simulations are…
Conductance matrix symmetries of multiterminal semiconductor-superconductor devices
Andrea Maiani, Max Geier, Karsten Flensberg
Nonlocal tunneling spectroscopy of multiterminal semiconductor-superconductor hybrid devices is a powerful tool to investigate the Andreev bound states below the parent superconduc…
Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions
D. Razmadze, R. Seoane Souto, L. Galletti +7
We report supercurrent transport measurements in hybrid Josephson junctions comprised of semiconducting InAs nanowires with epitaxial ferromagnetic insulator EuS and superconductin…
Semiconductor-ferromagnet-superconductor planar heterostructures for 1D topological superconductivity
Samuel D. Escribano, Andrea Maiani, Martin Leijnse +5
Hybrid structures of semiconducting (SM) nanowires, epitaxially grown superconductors (SC), and ferromagnetic-insulator (FI) layers have been explored experimentally and theoretica…
Entangling transmons with low-frequency protected superconducting qubits
Andrea Maiani, Morten Kjaergaard, Constantin Schrade
Novel qubits with intrinsic noise protection constitute a promising route for improving the coherence of quantum information in superconducting circuits. However, many protected su…
Vortex nucleation barriers and stable fractional vortices near boundaries in multicomponent superconductors
Andrea Maiani, Andrea Benfenati, Egor Babaev
The magnetization process of a superconductor is determined by the potential barrier for vortex nucleation and escape. In multicomponent superconductors, fractional vortices with a…
Topological superconductivity in semiconductor-superconductor-magnetic insulator heterostructures
A. Maiani, R. Seoane Souto, M. Leijnse +1
Hybrid superconductor-semiconductor heterostructures are promising platforms for realizing topological superconductors and exploring Majorana bound states physics. Motivated by rec…
Vortex nucleation barrier in superconductors beyond the Bean-Livingston approximation: A numerical approach for the sphaleron problem in a gauge theory
Andrea Benfenati, Andrea Maiani, Filipp N. Rybakov +1
The knowledge of vortex nucleation barriers is crucial for applications of superconductors, such as single-photon detectors and superconductor-based qubits. Contrarily to the probl…