Quantum-Enhanced Multiparameter Sensing via Driven Multi-ensemble Superradiance

• URL: http://arxiv.org/abs/2510.23110v1
• Date: Mon, 27 Oct 2025 08:31:19 GMT
• Title: Quantum-Enhanced Multiparameter Sensing via Driven Multi-ensemble Superradiance
• Authors: Kang Shen, Xiangming Hu, Fei Wang,
• Abstract summary: We analytically derive the dark-state covariance matrix of a driven multi-ensemble superradiant system in the large-$N$ limit.<n>This system is a promising candidate for multimode quantum interferometry.
• Score: 3.484433281596249
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We analytically derive the dark-state covariance matrix of a driven multi-ensemble superradiant system in the large-$N$ limit, revealing entanglement among the ensembles that enhances quantum metrology. The minimum eigenvalue, linked to the curvature of the superradiance potential trapping the dark state, corresponds to the optimal multiparameter squeezing coefficient, defined as the Rayleigh quotient of the squeezing matrix. This system provides a concrete protocol for achieving optimal quantum enhancement in arbitrary multiparameter estimation tasks, making it a promising candidate for multimode quantum interferometry.

Related papers

• Squeezed-Light-Enhanced Multiparameter Quantum Estimation in Cavity Magnonics [0.0]
  We propose an experimentally realistic scheme to improve the precision of simultaneously estimating different parameters in a cavity-magnon system.<n>We show that when nonlinearity is introduced into the system, quantum noise is significantly suppressed.
  arXiv  Detail & Related papers  (2026-01-20T10:13:59Z)
• Probing multiparameter quantum estimation in the process $e^+e^-\ o J/ψ\ o \ ext{B}\ar{\ ext{B}}$ at BESIII [0.0]
  We investigate multiparameter quantum estimation in baryon-antibaryon (B bar-B) pairs produced via the e+ e- -> J/psi -> B bar-B process.<n>The QFIM defines the quantum Cramer-Rao bound and dictates the choice of optimal probe states.
  arXiv  Detail & Related papers  (2026-01-17T16:31:52Z)
• Approaching the Multiparameter Quantum Cramér-Rao Bound via Classical Correlation and Entangling Measurements [1.351003538856344]
  We propose a scheme termed local operation with entangling measurements (LOEM) strategy.<n>We experimentally validate this scheme using a quantum photonic system.
  arXiv  Detail & Related papers  (2025-09-12T12:40:13Z)
• Pulse-based optimization of quantum many-body states with Rydberg atoms in optical tweezer arrays [39.58317527488534]
  We explore a pulse-based variational quantum eigensolver algorithm for Rydberg atoms in optical tweezer arrays.<n>We numerically demonstrate that the ground states of the one-dimensional antiferromagnetic Heisenberg model and the mixed-field Ising model can be accurately prepared.
  arXiv  Detail & Related papers  (2025-07-25T10:51:49Z)
• Calibration of Quantum Devices via Robust Statistical Methods [45.464983015777314]
  We numerically analyze advanced statistical methods for Bayesian inference against the state-of-the-art in quantum parameter learning.<n>We show advantages of these approaches over existing ones, namely under multi-modality and high dimensionality.<n>Our findings have applications in challenging quantumcharacterization tasks namely learning the dynamics of open quantum systems.
  arXiv  Detail & Related papers  (2025-07-09T15:22:17Z)
• Estimation of multiple parameters encoded in the modal structure of light [39.58317527488534]
  We investigate the problem of estimating simultaneously multiple parameters encoded in the shape of the modes on which the light is expanded.<n>We find that each parameter can be associated with a mode that is proportional to the derivative of either a single non-vacuum mode or the mean-field mode.
  arXiv  Detail & Related papers  (2025-05-22T09:20:02Z)
• Entanglement-assisted multiparameter estimation with a solid-state quantum sensor [7.506378889619729]
  This work bridges the gap between foundational quantum estimation theory and real-world quantum sensing.<n>We experimentally demonstrate multiparameter estimation using a nitrogen-vacancy (NV) center in diamond, a widely adopted solid-state quantum sensor.
  arXiv  Detail & Related papers  (2025-05-20T16:35:54Z)
• Avoided-crossings, degeneracies and Berry phases in the spectrum of quantum noise through analytic Bloch-Messiah decomposition [49.1574468325115]
  "analytic Bloch-Messiah decomposition" provides approach for characterizing dynamics of quantum optical systems.<n>We show that avoided crossings arise naturally when a single parameter is varied, leading to hypersensitivity of the singular vectors.<n>We highlight the possibility of programming the spectral response of photonic systems through the deliberate design of avoided crossings.
  arXiv  Detail & Related papers  (2025-04-29T13:14:15Z)
• Tight tradeoff relation and optimal measurement for multi-parameter quantum estimation [1.0104586293349587]
  This article presents an approach that precisely quantifies the tradeoff resulting from incompatible optimal measurements in quantum estimation.<n>We provide a systematic methodology for constructing optimal measurements that saturate this tight bound in an analytical and structured manner.<n>To demonstrate the power of our findings, we applied our methodology to quantum radar, resulting in a refined Arthurs-Kelly relation.
  arXiv  Detail & Related papers  (2025-04-13T09:10:27Z)
• Multiparameter estimation with an array of entangled atomic sensors [1.9909997482325166]
  entangled state of many-particle systems are investigated to enhance measurement precision of the most precise clocks and field sensors.<n>By splitting a spin-squeezed ensemble, we create an atomic sensor array featuring inter-sensor entanglement that can be flexibly configured to enhance measurement precision of multiple parameters jointly.
  arXiv  Detail & Related papers  (2025-04-11T16:32:29Z)
• Quantum multiparameter estimation enhanced by a topological phase transition [3.188072216541844]
  In a quantum dynamics system, multiple to-be-estimated parameters are encoded by a unitary evolution. As the parameters vary, the system may undergo a topological phase transition (TPT) We propose the singular behavior of the quantum metric tensor around the TPT point as a tool for the simultaneous optimal estimation of multiple parameters.
  arXiv  Detail & Related papers  (2024-02-11T02:52:39Z)
• Calculating non-linear response functions for multi-dimensional electronic spectroscopy using dyadic non-Markovian quantum state diffusion [68.8204255655161]
  We present a methodology for simulating multi-dimensional electronic spectra of molecular aggregates with coupling electronic excitation to a structured environment. A crucial aspect of our approach is that we propagate the NMQSD equation in a doubled system Hilbert space but with the same noise.
  arXiv  Detail & Related papers  (2022-07-06T15:30:38Z)
• Dual-Frequency Quantum Phase Estimation Mitigates the Spectral Leakage of Quantum Algorithms [76.15799379604898]
  Quantum phase estimation suffers from spectral leakage when the reciprocal of the record length is not an integer multiple of the unknown phase. We propose a dual-frequency estimator, which approaches the Cramer-Rao bound, when multiple samples are available.
  arXiv  Detail & Related papers  (2022-01-23T17:20:34Z)
• Optimal non-classical correlations of light with a levitated nano-sphere [34.82692226532414]
  Nonclassical correlations provide a resource for many applications in quantum technology. Optomechanical systems can generate nonclassical correlations between the mechanical mode and a mode of travelling light. We propose automated optimization of the production of quantum correlations in such a system.
  arXiv  Detail & Related papers  (2020-06-26T15:27:47Z)

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.