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quant-ph2025
Efficient quantum tomography of a polynomial subspace
Yat Wong, Ming Yuan, Kevin He +4
Quantum tomography is crucial for characterizing the quantum states of multipartite systems, but its practicality is often limited by the exponentially large dimension of the Hilbe…
quant-ph2025
High-impedance resonators for strong coupling to an electron on helium
G. Koolstra, E. O. Glen, N. R. Beysengulov +9
The in-plane motion of an electron on helium can couple to superconducting microwave resonators via electrical dipole coupling, offering a robust and rapid readout scheme. In previ…
quant-ph2024
Designing high-fidelity two-qubit gates between fluxonium qubits
Emma L. Rosenfeld, Connor T. Hann, David I. Schuster +2
We take a bottom-up, first-principles approach to design a two-qubit gate between fluxonium qubits for minimal error, speed, and control simplicity. Our proposed architecture consi…