Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The simultaneous estimation of multiple unknown parameters is the most general scenario in quantum sensing. Quantum multiparameter estimation theory provides fundamental bounds on the achievable precision of simultaneous estimation. However, these bounds can become singular (no finite bound exists) in multiparameter sensing due to parameter interdependencies, limited probe accessibility, and insufficient measurement outcomes. Here, we address the singularity issue in quantum sensing through a simple mechanism based on a sequential measurement strategy. This sensing scheme overcomes the singularity constraint and enables the simultaneous estimation of multiple parameters with a local and fixed measurement throughout the sensing protocol. This is because sequential measurements, involving consecutive steps of local measurements followed by probe evolution, inherently produce correlated measurement data that grows exponentially with the number of sequential measurements. Finally, through two different examples, namely a strongly correlated probe and a light-matter system, we demonstrate how such singularities are reflected when inferring the unknown parameters through Bayesian estimation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/gsyv-jllq | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spectral Photon-Counting Detector Coronary CTA With Reduced Radiation and Contrast Media Doses in Inflammation-Associated Coronary Artery Disease: A Prospective Study.
AJR Am J Roentgenol
September 2025
Department of Radiology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
Patients with inflammation-associated coronary artery disease (CAD) may exhibit rapid progression and require regular coronary imaging. To evaluate the diagnostic performance of spectral photon-counting detector (PCD) coronary CTA with reduced radiation and contrast media doses for detecting coronary stenosis and in-stent restenosis in patients with inflammation-associated CAD. This prospective study enrolled patients with inflammation-associated CAD from January 2023 to March 2024.
View Article and Find Full Text PDFRole of Composite Measurable Residual Disease Assessment with PET-CT and flow cytometry in Multiple Myeloma patients undergoing Autologous Transplant.
Blood Cell Ther
August 2025
Department of Clinical Hematology and Medical Oncology, Postgraduate Institute Of Medical Education And Research (PGIMER), Chandigarh, India.
Background: Bone marrow (BM) Measurable Residual Disease (MRD) assessments underestimate disease burden in multiple myeloma, as focal lesions can exist outside the marrow. Functional imaging, like positron emission tomography-computed tomography (PET-CT), offers valuable insights into residual disease beyond the marrow. Combining marrow flow cytometry (FCM) with PET-CT for a composite MRD (cMRD) assessment before and after autologous stem cell transplant (ASCT) is expected to provide prognostic information, particularly in settings where patients receive extended duration of anti-myeloma therapy prior to ASCT.
View Article and Find Full Text PDFThe effects of contextual bias on face recognition decisions.
J Forensic Sci
September 2025
Faculty of Arts and Social Sciences, School of Psychology and Counselling, The Open University, Milton Keynes, UK.
Contemporary research has demonstrated the effects of bias on, even expert, forensic decision making. The paper aimed to test if forensically relevant face recognition decisions could be influenced by biasing information. A 3 (Bias (within-subjects): positive bias vs.
View Article and Find Full Text PDFMitigating lead bioaccessibility in metal(loid)s contaminated alkaline soils using soil amendments: Evaluating efficacy using in vitro bioaccessibility, sequential extraction, and synchrotron techniques.
J Hazard Mater
September 2025
Department of Public Health Sciences, University of Texas at El Paso, 211 Kelly Hall, 500 W University, El Paso, TX 79902, USA. Electronic address:
The correlation between Pb species formation and bioaccessibility in alkaline, smelter-impacted soil co-contaminated with other toxic trace elements after treatment with phosphorus-containing amendments was investigated. The soil was collected near a former copper smelter, El Paso, Texas. It contained Pb (3200 ± 142 mg kg), As (254 ± 14 mg kg), and Cd (110 ± 8 mg kg).
View Article and Find Full Text PDFCytosolic calcium handling signature: integration with clinical predictors enhances prediction of post-operative atrial fibrillation.
Eur Heart J
September 2025
Institute of Pharmacology and Toxicology, University Medical Centre Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
Background And Aims: Atrial fibrillation (AF) is a prevalent complication after cardiac surgery, worsening patient outcomes. Considering the established role of Ca2+-handling abnormalities in AF pathogenesis, this study aimed to evaluate if integrating cytosolic Ca2+-handling measurements with clinical risk factors enhances the risk prediction of post-operative AF.
Methods: Clinical data from 558 patients undergoing cardiac surgery without pre-existing AF from two centres were analysed.