First experimental realization of spectral diffusion mitigation in a solid-state emitter via periodic optical pi-pulses, concentrating roughly half the absorption at a freely chosen target frequency and reducing the inhomogeneously broadened linewidth near the lifetime limit.
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Photon anomalous blockade arises via the quantum Zeno effect in weakly driven waveguide cavity QED with atomic mirrors, even in bad cavities with large dissipation and weak coupling.
HP-1 circuits achieve O(n) depth while preserving shift invariance and exponentially growing Fisher information, enabling numerical replacement of the QFT in Shor's algorithm with neural net classical post-processing.
A hybrid cavity combining a plasmonic nanoresonator inside a dielectric cavity enables indistinguishable photon generation from dephased emitters with much lower dielectric Q factors and 12x higher collection efficiency.
Optimal cavity modulation via Krylov theory extends qubit lifetime in inhomogeneous spin ensembles by an order of magnitude over inhomogeneity and cavity losses.
A non-local Hong-Ou-Mandel effect is realized via post-selection on separated outputs in a four-path interferometer, demonstrating two-photon interference without photons sharing a local beam splitter.
Modified Quantum Volume test uses restricted universal circuits to directly determine heavy outputs without exponential classical simulation cost.
Gaussian pump and quasi-phase-matching shaping in SPDC sources yields unfiltered photons with spectral purity upper bound 99.9272(6)% and two-photon interference visibilities up to 98.5(8)%.
A two-photon Jaynes-Cummings model with the resonator as emitter converts a one-photon-average coherent pulse into a single-photon pulse with efficiency, purity, and indistinguishability above 90 percent while remaining robust to atomic dephasing.
Experimental demonstration of quantum advantage with a single qubit over classical bit in communication games without shared randomness using photonic processor.
Numerical simulations of a Kerr parametric resonator at criticality show enhanced switching probability for single-quanta microwave probes.