Photon catalysis protocols are shown to be provably optimal in some cases for approximating squeezed cat states, with identified parameter regimes achieving high fidelity using minimal non-Gaussian resources while benchmarking against alternative methods.
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Loss-induced phases in auxiliary cavities create asymmetric interference, yielding tunable nonreciprocal couplings and entanglement between remote transmon qubits.
The paper identifies four key hurdles in the transition from NISQ to FASQ quantum computers and argues that targeting them will accelerate progress toward useful quantum advantage.
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Optimal stellar rank approximation of squeezed cat states with photon catalysis
Photon catalysis protocols are shown to be provably optimal in some cases for approximating squeezed cat states, with identified parameter regimes achieving high fidelity using minimal non-Gaussian resources while benchmarking against alternative methods.
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Loss-induced quantum nonreciprocity and entanglement in superconducting qubits
Loss-induced phases in auxiliary cavities create asymmetric interference, yielding tunable nonreciprocal couplings and entanglement between remote transmon qubits.
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Mind the gaps: The fraught road to quantum advantage
The paper identifies four key hurdles in the transition from NISQ to FASQ quantum computers and argues that targeting them will accelerate progress toward useful quantum advantage.