Quantum-inspired exoplanet detection in the presence of experimental imperfections
arXiv:2505.00064 · doi:10.1103/qq99-jmpv
Abstract
Ideal spatial demultiplexing (SPADE) is proven to be a quantum-optimal tool for exoplanet detection, i.e., asymmetric source discrimination. However, recent investigations into the related problems of separation estimation and symmetric source discrimination showed its efficiency to be limited in the presence of noise. In this work, we use analytical tools to scrutinize the practical applicability of SPADE and derive the associated optimal decision strategy for exoplanet detection in the presence of experimental imperfections. On the one hand, we find that the probability of detection of noisy SPADE has the same scaling with planet-star separation and relative brightness as conventional techniques, such as direct imaging and coronagraphs. On the other hand, we prove that, due to a superior scaling coefficient under realistic noise conditions, SPADE remains the most efficient method for practical exoplanet detection in the sub-Rayleigh regime.
10 pages, 4 figures
References in corpus (16)
- Theoretical Limits on Extrasolar Terrestrial Planet Detection with Coronagraphs
- Fast computation of Lyot-style coronagraph propagation
- Evidence for a spectroscopic direct detection of reflected light from 51 Peg b
- Quantum hypothesis testing for exoplanet detection
- Optical quantum super-resolution imaging and hypothesis testing
- Subwavelength quantum imaging with noisy detectors
- Identifying Objects at the Quantum Limit for Super-Resolution Imaging
- Ultra-sensitive separation estimation of optical sources
- Single-photon sub-Rayleigh precision measurements of a pair of incoherent sources of unequal intensity
- Coherence effects on estimating general sub-Rayleigh object distribution moments
- Astrometry in two-photon interferometry using Earth rotation fringe scan
- Application range of crosstalk-affected spatial demultiplexing for resolving separations between unbalanced sources
- Experimental Demonstration of a Quantum-Optimal Coronagraph Using Spatial Mode Sorters
- Superresolution in separation estimation between two dynamic incoherent sources using spatial demultiplexing
- Breaking Rayleigh's curse for two unbalanced single-photon emitters: BLESS technique
- Superresolving optical ruler based on spatial mode demultiplexing for systems evolving under Brownian motion