Sub-shot-noise interferometry with two-mode quantum states
arXiv:2307.16479 · doi:10.1103/PhysRevA.109.023701
Abstract
We study the feasibility of sub-shot-noise interferometry with imperfect detectors, starting from twin-Fock states and two mode squeezed vacuum states. We derive analytical expressions for the corresponding phase uncertainty. We find that one can achieve phase shift measurements below the standard quantum limit, as long as the losses are smaller than a given threshold, and that the measured phase is close enough to an optimal value. We provide our analytical formulae in a Python package, accessible online.
References in corpus (21)
- Advances in Quantum Metrology
- Quantum-enhanced measurements: beating the standard quantum limit
- Quantum metrology
- Quantum metrology with nonclassical states of atomic ensembles
- General framework for estimating the ultimate precision limit in noisy quantum-enhanced metrology
- Entanglement, Non-linear Dynamics, and the Heisenberg Limit
- Beating the Standard Quantum Limit with Four Entangled Photons
- Optimal Quantum Phase Estimation
- Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit
- Twin matter waves for interferometry beyond the classical limit
- Quantum phase estimation with lossy interferometers
- Entangled Fock states for Robust Quantum Optical Metrology, Imaging, and Sensing
- Deterministic entanglement generation from driving through quantum phase transitions
- Scaling laws for precision in quantum interferometry and bifurcation landscape of optimal state
- Single-Mode Parametric-Down-Conversion States with 50 Photons as a Source for Mesoscopic Quantum Optics
- Phase estimation without a priori knowledge in the presence of loss
- Strong Quantum Spin Correlations Observed in Atomic Spin Mixing
- Momentum Entanglement for Atom Interferometry
- Macroscopic Hong-Ou-Mandel interference
- Interference of macroscopic beams on a beam splitter: phase uncertainty converted into photon-number uncertainty
- Double-Fock Superposition Interferometry for Differential Diagnosis of Decoherence