A voltage-biased SQUID-based ICTA delivers 13 dB average gain across 3.5 GHz bandwidth while operating within 0.2 photons of the quantum limit.
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Microscopic unitary simulation of circuit QED readout shows qubit T1 drops with increasing drive amplitude when a Purcell notch filter is at the qubit frequency, exposing qualitative defects in Lindblad master equations.
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DC-powered broadband quantum-limited microwave amplifier
A voltage-biased SQUID-based ICTA delivers 13 dB average gain across 3.5 GHz bandwidth while operating within 0.2 photons of the quantum limit.
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First-principles study of dispersive readout in circuit QED
Microscopic unitary simulation of circuit QED readout shows qubit T1 drops with increasing drive amplitude when a Purcell notch filter is at the qubit frequency, exposing qualitative defects in Lindblad master equations.