Quantum Super-Resolution with Balanced Homodyne Detection in Low-Earth-Orbit

• URL: http://arxiv.org/abs/2306.06541v2
• Date: Tue, 16 Jan 2024 00:12:09 GMT
• Title: Quantum Super-Resolution with Balanced Homodyne Detection in Low-Earth-Orbit
• Abstract summary: Quantum super-resolution involves resolving two sources below the Rayleigh limit using quantum optics. Such a technique would allow high-precision inter-satellite positioning and tracking on communication and navigation constellations. Due to the size, weight and power constraints typical of low-earth-orbit (LEO) satellites, a simple solution is often preferred.
• Score: 0.764671395172401
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum super-resolution involves resolving two sources below the Rayleigh limit using quantum optics. Such a technique would allow high-precision inter-satellite positioning and tracking on communication and navigation constellations. Due to the size, weight and power constraints typical of low-earth-orbit (LEO) satellites, a simple solution is often preferred. Here, we show that a balanced homodyne detection (BHD) setup using a shaped single-mode local oscillator can achieve super-resolution despite typical photonic losses. We further analyze the impact of a fluctuating and fixed centroid misalignment due to satellite pointing issues, and find that fixed misalignment is comparatively more detrimental to the performance of a BHD setup. Thus, our study provides a practical assessment of BHD to achieve super-resolution on a modern LEO satellite platform. Finally, we discuss how our analysis can be extended to stellar sources for astronomical applications.

Related papers

• Stokes-Informed Diffusion for Robust Linear Polarization Estimation [49.459667092743445]
  GenPolar is a Stokes-informed diffusion framework grounded in the Mueller formalism from an intensity observation.<n>It achieves state-of-the-art performance in both DoLP fidelity and AoP stability.<n>These improvements translate to significant and consistent gains in downstream applications, including material detection and de-reflection.
  arXiv  Detail & Related papers  (2026-07-23T11:56:15Z)
• Certifiable Alignment of GNSS and Local Frames via Lagrangian Duality [11.186187106454957]
  Esting the absolute orientation of a local system relative to a global navigation satellite system (GNSS) reference often suffers from local minima and high dependency on satellite availability.<n> methods for this alignment task rely on abundant satellites unavailable in-degraded environments, or use local optimization methods which cannot guarantee the optimality of the alignment.<n>The proposed method is certifiable, meaning it can numerically fill a gap where existing local convexs fail.
  arXiv  Detail & Related papers  (2025-12-24T04:24:33Z)
• Optical Downlink Modeling for LEO and MEO Satellites under Atmospheric Turbulence with a Quantum State Tomography Use Case [0.0]
  This paper presents a comprehensive analysis of the link budget for free-space optical systems involving Low Earth Orbit (LEO) and Medium Earth Orbit (MEO) satellites.<n>We develop a detailed model of the satellite-to-ground channel that accounts for the primary physical processes affecting transmittance.<n>We propose a scheme for quantum state tomography performed on states generated by an onboard photon source on an LEO or MEO satellite and transmitted to the optical ground station.
  arXiv  Detail & Related papers  (2025-12-15T19:09:37Z)
• LiM-YOLO: Less is More with Pyramid Level Shift and Normalized Auxiliary Branch for Ship Detection in Optical Remote Sensing Imagery [3.2425852744760184]
  LiM-YOLO is a specialized detector designed to resolve domain-specific conflicts.<n>Based on a statistical analysis of ship scales, we introduce a Pyramid Level Shift Strategy that mitigates the detection head to P2-P4.<n>LiM-YOLO demonstrates superior detection accuracy and efficiency compared to state-of-the-art models.
  arXiv  Detail & Related papers  (2025-12-10T14:48:58Z)
• ASTREA: Introducing Agentic Intelligence for Orbital Thermal Autonomy [51.56484100374058]
  ASTREA is the first agentic system executed on flight-heritage hardware for autonomous spacecraft operations.<n>We integrate a resource-constrained Large Language Model (LLM) agent with a reinforcement learning controller in an asynchronous architecture tailored for space-qualified platforms.
  arXiv  Detail & Related papers  (2025-09-16T08:52:13Z)
• STAR: A Benchmark for Astronomical Star Fields Super-Resolution [51.79340280382437]
  We propose STAR, a large-scale astronomical SR dataset containing 54,738 flux-consistent star field image pairs.<n>We propose a Flux-Invariant Super Resolution (FISR) model that could accurately infer the flux-consistent high-resolution images from input photometry.
  arXiv  Detail & Related papers  (2025-07-22T09:28:28Z)
• Superresolving optical ruler based on spatial mode demultiplexing for systems evolving under Brownian motion [0.0]
  We study the impact of Brownian motion of the center of the system of two weak incoherent sources of arbitrary relative brightness on adaptive SPADE measurement precision limits. We find that Rayleigh's curse is present in such a scenario; however, SPADE measurement can outperform perfect direct imaging.
  arXiv  Detail & Related papers  (2024-07-18T17:23:14Z)
• Superresolution in separation estimation between two dynamic incoherent sources using spatial demultiplexing [0.0]
  Recently, perfect measurement based on spatial mode demultiplexing (SPADE) in Hermite-Gauss modes allowed one to reach the quantum limit of precision for estimation of separation between two weak incoherent stationary sources. In this paper, we consider another deviation from the perfect setup by discarding the assumption about the stationarity of the sources. We formulate a measurement algorithm that allows for the reduction of one parameter for estimation in the stationary sources scenario.
  arXiv  Detail & Related papers  (2024-07-15T07:57:57Z)
• Physics-Inspired Degradation Models for Hyperspectral Image Fusion [61.743696362028246]
  Most fusion methods solely focus on the fusion algorithm itself and overlook the degradation models. We propose physics-inspired degradation models (PIDM) to model the degradation of LR-HSI and HR-MSI. Our proposed PIDM can boost the fusion performance of existing fusion methods in practical scenarios.
  arXiv  Detail & Related papers  (2024-02-04T09:07:28Z)
• Optimal baseline exploitation in vertical dark-matter detectors based on atom interferometry [50.06952271801328]
  Several terrestrial detectors for gravitational waves and dark matter based on long-baseline atom interferometry are currently in the final planning stages or already under construction. We show that resonant-mode detectors based on multi-diamond fountain gradiometers achieve the optimal, shot-noise limited, sensitivity if their height constitutes 20% of the available baseline.
  arXiv  Detail & Related papers  (2023-09-08T08:38:24Z)
• Entanglement Distribution in Satellite-based Dynamic Quantum Networks [10.445684354981847]
  Low Earth Orbit (LEO) satellites present a compelling opportunity for the establishment of a global quantum information network. Existing works often do not account for satellite movement over time when distributing entanglement and/or often do not permit entanglement distribution along inter-satellite links. We first define a system model which considers both satellite movement over time and inter-satellite links.
  arXiv  Detail & Related papers  (2023-06-15T06:56:26Z)
• A CubeSat platform for space based quantum key distribution [62.997667081978825]
  We report on the follow-up mission of SpooQy-1, a 3U CubeSat that successfully demonstrated the generation of polarization-entangled photons in orbit. The next iteration of the mission will showcase satellite-to-ground quantum key distribution based on a compact source of polarization-entangled photon-pairs. We briefly describe the design of the optical ground station that we are currently building in Singapore for receiving the quantum signal.
  arXiv  Detail & Related papers  (2022-04-23T06:28:43Z)
• Ground-Assisted Federated Learning in LEO Satellite Constellations [39.646300161201076]
  We propose a new set of algorithms based of Federated learning (FL) Our approach differs substantially from the standard FL algorithms, as it takes into account the predictable connectivity patterns that are immanent to the constellations. In particular, the achieved test accuracy is within 96% to 99.6% of the centralized solution.
  arXiv  Detail & Related papers  (2021-09-03T07:17:20Z)
• Realizing quantum nodes in space for cost-effective, global quantum communication: in-orbit results and next steps [94.08853042978113]
  SpooQy-1 is a satellite developed at the Centre for Quantum Technologies. It has successfully demonstrated the operation of an entangled photon pair source on a resource-constrained CubeSat platform.
  arXiv  Detail & Related papers  (2021-04-22T02:59:23Z)
• Image Acquisition Planning for Earth Observation Satellites with a Quantum Annealer [0.35232085374661287]
  We compare state-of-the-art classical optimisation methods to a D-Wave 2000Q quantum annealer for the planning of Earth observation missions. We find that the solution quality of the quantum annealer is comparable to the method used operationally for small problem instances, but degrades rapidly due to the limited precision of the quantum annealer.
  arXiv  Detail & Related papers  (2020-06-17T08:55:37Z)
• Integrating LEO Satellite and UAV Relaying via Reinforcement Learning for Non-Terrestrial Networks [51.05735925326235]
  A mega-constellation of low-earth orbit (LEO) satellites has the potential to enable long-range communication with low latency. We study the problem of forwarding packets between two faraway ground terminals, through an LEO satellite selected from an orbiting constellation. To maximize the end-to-end data rate, the satellite association and HAP location should be optimized. We tackle this problem using deep reinforcement learning (DRL) with a novel action dimension reduction technique.
  arXiv  Detail & Related papers  (2020-05-26T05:39:27Z)
• Proposal for an optical interferometric measurement of the gravitational red-shift with satellite systems [52.77024349608834]
  Einstein Equivalence Principle (EEP) underpins all metric theories of gravity. The iconic gravitational red-shift experiment places two fermionic systems, used as clocks, in different gravitational potentials. A fundamental point in the implementation of a satellite large-distance optical interferometric experiment is the suppression of the first-order Doppler effect. We propose a novel scheme to suppress it, by subtracting the phase-shifts measured in the one-way and in the two-way configuration between a ground station and a satellite.
  arXiv  Detail & Related papers  (2018-11-12T16:25:57Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.