Fundamental quantum limits to waveform detection

Ever since the inception of gravitational-wave detectors, limits imposed by quantum mechanics to the detection of time-varying signals have been a subject of intense research and debate. Drawing insights from quantum information theory, quantum detection theory, and quantum measurement theory, here...

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Bibliographic Details
Published inarXiv.org
Main Authors Tsang, Mankei, Nair, Ranjith
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 16.10.2012
Subjects
Error detection
Gravitational waves
Information theory
Physics - General Relativity and Quantum Cosmology
Physics - Quantum Physics
Quantum mechanics
Quantum phenomena
Quantum theory
Waveform detection
Online AccessGet full text
ISSN2331-8422
DOI10.48550/arxiv.1204.3697

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Summary:Ever since the inception of gravitational-wave detectors, limits imposed by quantum mechanics to the detection of time-varying signals have been a subject of intense research and debate. Drawing insights from quantum information theory, quantum detection theory, and quantum measurement theory, here we prove lower error bounds for waveform detection via a quantum system, settling the long-standing problem. In the case of optomechanical force detection, we derive analytic expressions for the bounds in some cases of interest and discuss how the limits can be approached using quantum control techniques.
Bibliography:SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
content type line 50
ISSN:2331-8422
DOI:10.48550/arxiv.1204.3697