9 papers · 1 filter
Crosstalk Dispersion and Spatial Scaling in Superconducting Qubit Arrays
Mohammed Alghadeer, Simon Pettersson Fors, Shuxiang Cao +5
Crosstalk between qubits fundamentally limits the scalability of quantum processors, necessitating physics-based models that can handle the complexity of large qubit arrays. Here,…
Double-Bracket Algorithmic Cooling
Mohammed Alghadeer, Khanh Uyen Giang, Shuxiang Cao +6
Algorithmic cooling shows that it is possible to locally reduce the entropy of a qubit belonging to an isolated ensemble such as nuclear spins in molecules or nitrogen-vacancy cent…
Dynamic Josephson Junction Metasurfaces for Multiplexed Control of Superconducting Qubits
Mustafa Bakr
Scaling superconducting quantum processors to large qubit counts faces challenges in control signal delivery, thermal management, and hardware complexity, particularly in achieving…
Intrinsic Multi-Mode Interference for Passive Suppression of Purcell Decay in Superconducting Circuits
Mustafa Bakr, Mohammed Alghadeer, Simon Pettersson Fors +6
Decoherence due to radiative decay remains an important consideration in scaling superconducting quantum processors. We introduce a passive, interference-based methodology for supp…
Low Crosstalk in a Scalable Superconducting Quantum Lattice
Mohammed Alghadeer, Shuxiang Cao, Simone D Fasciati +5
Superconducting quantum circuits are a key platform for advancing quantum information processing and simulation. Scaling efforts currently encounter challenges such as Josephson-ju…
Characterization of Nanostructural Imperfections in Superconducting Quantum Circuits
Mohammed Alghadeer, Simone D Fasciati, Shuxiang Cao +7
Decoherence in superconducting quantum circuits, caused by loss mechanisms like material imperfections and two-level system (TLS) defects, remains a major obstacle to improving the…