Fractional OAM charge ℓ=1.5 induces an optimal 67.5° GKP lattice rotation that reduces error rate 23.9× with <0.2% loss in Fisher information and yields 41% higher metrological capacity.
and van Loock, Peter
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Engineered two-photon loss mitigates single-photon loss in TPD-Kerr systems by converting oscillatory decay to monotonic and extending metrological windows over an order of magnitude via non-Gaussian cat states.
In finite-depth random linear optical circuits, entanglement grows at most diffusively and robust circuit complexity scales similarly, with depth bounds ensuring near-maximal subsystem entanglement and closeness to Haar unitaries.
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OAM-Induced Lattice Rotation Reveals a Fractional Optimum in Fault-Tolerant GKP Quantum Sensing
Fractional OAM charge ℓ=1.5 induces an optimal 67.5° GKP lattice rotation that reduces error rate 23.9× with <0.2% loss in Fisher information and yields 41% higher metrological capacity.
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Quantum metrology via mitigation of single-photon loss using an engineered nonlinear oscillator
Engineered two-photon loss mitigates single-photon loss in TPD-Kerr systems by converting oscillatory decay to monotonic and extending metrological windows over an order of magnitude via non-Gaussian cat states.
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Entanglement and circuit complexity in finite-depth random linear optical networks
In finite-depth random linear optical circuits, entanglement grows at most diffusively and robust circuit complexity scales similarly, with depth bounds ensuring near-maximal subsystem entanglement and closeness to Haar unitaries.