Quantum-enhanced sensing of photonic modes with cat states

2025/03/30 by Zheng, Xiao-Wei, Zheng, Jun-Cong, Pan, Xue-Feng +1 · 4 citations
#FOS: Physical sciences #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.2503.23531

Abstract

Quantum coherence is critical resource for applications in quantum technology, among which quantum-enhanced sensing represents a typical example.Compared with quantum metrology with entangled states of multiple qubits, bosonic interferometers have the advantage of being hardware-effcient, enabled by exploiting the high-dimensional Hilbert space of a bosonic mode.

Cited by

• Quantum-enhanced estimation of signal field amplitudes with critical squeezed states of photonic modes
• Emergence of irreversible decoherence from unitary dynamics
• Using anti-squeezed Schrödinger cat states for detection of a given phase shift
• Optimizing Quantum Photonic Integrated Circuits using Differentiable Tensor Networks

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