A hybrid fluxonium demonstrates coherent flux-charge coupling isolated by parity selection rules and operable at a first-order gate-voltage-insensitive ChIVE point.
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7 Pith papers cite this work. Polarity classification is still indexing.
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A nonequilibrium Kramers turnover is isolated in a Kerr parametric oscillator via analytical rescaling of effective friction and temperature, confirmed by temperature-dependent phase-slip measurements in a MEMS device.
Bit flips in dissipative cat qubits are accompanied by time-localized photon bursts that enable their detection as erasures via photon counting or homodyne monitoring.
Saturation of bit-flip suppression in cat qubits originates from chaotic dynamics in memory-buffer interactions when adiabatic approximation breaks and cross-Kerr plus dephasing are present.
Spin Kerr-cat qubits encode information in the lowest levels of a Z2-symmetric nuclear-spin Hamiltonian in quadrupolar nuclei to achieve first-order dephasing suppression, yielding estimated T2* of 100 s for 123Sb in silicon and 99% two-qubit gate fidelity with quadrupolar enhancement.
A quartic extension of the twisting-and-turning Hamiltonian generates new unstable fixed points that accelerate short-time amplification of quantum fluctuations, yielding enhanced sensitivity within accessible coherence times.
Perfect displacement of superconducting resonators is achieved via fast-forward scaling of drive amplitude or detuning, enabling high-speed R_ZZ gates in Kerr-cat qubits.
citing papers explorer
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Observation of coherent flux-charge interaction in a gate-tunable fluxonium
A hybrid fluxonium demonstrates coherent flux-charge coupling isolated by parity selection rules and operable at a first-order gate-voltage-insensitive ChIVE point.
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Nonequilibrium Kramers Turnover in a Kerr Parametric Oscillator
A nonequilibrium Kramers turnover is isolated in a Kerr parametric oscillator via analytical rescaling of effective friction and temperature, confirmed by temperature-dependent phase-slip measurements in a MEMS device.
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Bit flips are erasures in dissipative cat qubits
Bit flips in dissipative cat qubits are accompanied by time-localized photon bursts that enable their detection as erasures via photon counting or homodyne monitoring.
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Bit flips, saturation, and quantum chaos in dissipative cat qubits
Saturation of bit-flip suppression in cat qubits originates from chaotic dynamics in memory-buffer interactions when adiabatic approximation breaks and cross-Kerr plus dephasing are present.
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Spin Kerr-cat qubits
Spin Kerr-cat qubits encode information in the lowest levels of a Z2-symmetric nuclear-spin Hamiltonian in quadrupolar nuclei to achieve first-order dephasing suppression, yielding estimated T2* of 100 s for 123Sb in silicon and 99% two-qubit gate fidelity with quadrupolar enhancement.
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Instability-Enhanced Quantum Sensing with Tunable Multibody Interactions
A quartic extension of the twisting-and-turning Hamiltonian generates new unstable fixed points that accelerate short-time amplification of quantum fluctuations, yielding enhanced sensitivity within accessible coherence times.
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Perfect displacement of a superconducting resonator via fast-forward scaling and its application to high-speed $R_{ZZ}$ gates in Kerr-cat qubits
Perfect displacement of superconducting resonators is achieved via fast-forward scaling of drive amplitude or detuning, enabling high-speed R_ZZ gates in Kerr-cat qubits.