A Fourier-engineered cos(2φ) qubit achieves spectral agreement with theory but its energy relaxation is limited by 1/f flux noise from residual first-harmonic fluctuations, unlike similar fluxonium qubits.
Feldstein-Bofill, L
4 Pith papers cite this work. Polarity classification is still indexing.
4
Pith papers citing it
citation-role summary
background 1
citation-polarity summary
fields
quant-ph 4years
2026 4roles
background 1polarities
background 1representative citing papers
Experimental demonstration of a WSi weak link in a 3D RF-SQUID showing non-sinusoidal current-phase relation with measured relaxation times of trapped persistent-current states.
Superconducting circuit hosts fractional fluxon states (fraxons) in a tailored Josephson potential to realize protected qudits with a STIRAP gate protocol.
A modified multi-mode rhombus circuit realizes a biased-noise superconducting qubit with measured average relaxation time of 500 microseconds in the biased regime versus 27 microseconds at frustration.
citing papers explorer
-
Coherence limitations of a Fourier-engineered $\cos(2\varphi)$ transmon qubit
A Fourier-engineered cos(2φ) qubit achieves spectral agreement with theory but its energy relaxation is limited by 1/f flux noise from residual first-harmonic fluctuations, unlike similar fluxonium qubits.
-
WSi weak link element with a non-sinusoidal current-phase relation
Experimental demonstration of a WSi weak link in a 3D RF-SQUID showing non-sinusoidal current-phase relation with measured relaxation times of trapped persistent-current states.
-
Fraxonium: Fractional fluxon states for qudit encoding
Superconducting circuit hosts fractional fluxon states (fraxons) in a tailored Josephson potential to realize protected qudits with a STIRAP gate protocol.
-
Revisiting the multi-mode rhombus circuit as a biased-noise qubit
A modified multi-mode rhombus circuit realizes a biased-noise superconducting qubit with measured average relaxation time of 500 microseconds in the biased regime versus 27 microseconds at frustration.