Living Reviews in Relativity最新文献_第7页

Exploring New Physics Frontiers Through Numerical Relativity 通过数值相对论探索新的物理前沿

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2015-09-21 DOI: 10.1007/lrr-2015-1

Vitor Cardoso, Leonardo Gualtieri, Carlos Herdeiro, Ulrich Sperhake

引用次数: 75

Gravitational Radiation from Post-Newtonian Sources and Inspiralling Compact Binaries 后牛顿源的引力辐射和激励紧致双星

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-12-01 DOI: 10.12942/lrr-2014-2

Luc Blanchet

{"title":"Gravitational Radiation from Post-Newtonian Sources and Inspiralling Compact Binaries","authors":"Luc Blanchet","doi":"10.12942/lrr-2014-2","DOIUrl":"https://doi.org/10.12942/lrr-2014-2","url":null,"abstract":"To be observed and analyzed by the network of gravitational wave detectors on ground (LIGO, VIRGO, etc.) and by the future detectors in space (eLISA, etc.), inspiralling compact binaries — binary star systems composed of neutron stars and/or black holes in their late stage of evolution — require high-accuracy templates predicted by general relativity theory. The gravitational waves emitted by these very relativistic systems can be accurately modelled using a high-order post-Newtonian gravitational wave generation formalism. In this article, we present the current state of the art on post-Newtonian methods as applied to the dynamics and gravitational radiation of general matter sources (including the radiation reaction back onto the source) and inspiralling compact binaries. We describe the post-Newtonian equations of motion of compact binaries and the associated Lagrangian and Hamiltonian formalisms, paying attention to the self-field regularizations at work in the calculations. Several notions of innermost circular orbits are discussed. We estimate the accuracy of the post-Newtonian approximation and make a comparison with numerical computations of the gravitational self-force for compact binaries in the small mass ratio limit. The gravitational waveform and energy flux are obtained to high post-Newtonian order and the binary’s orbital phase evolution is deduced from an energy balance argument. Some landmark results are given in the case of eccentric compact binaries — moving on quasi-elliptical orbits with non-negligible eccentricity. The spins of the two black holes play an important role in the definition of the gravitational wave templates. We investigate their imprint on the equations of motion and gravitational wave phasing up to high post-Newtonian order (restricting to spin-orbit effects which are linear in spins), and analyze the post-Newtonian spin precession equations as well as the induced precession of the orbital plane.","PeriodicalId":686,"journal":{"name":"Living Reviews in Relativity","volume":"17 1","pages":""},"PeriodicalIF":40.6,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.12942/lrr-2014-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4014278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 45

The Confrontation between General Relativity and Experiment 广义相对论与实验的对抗

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-12-01 DOI: 10.12942/lrr-2014-4

Clifford M. Will

引用次数: 0

On the History of Unified Field Theories. Part II. (ca. 1930–ca. 1965) 论统一场论的历史。第二部分。(ca 1930 - ca。1965)

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-12-01 DOI: 10.12942/lrr-2014-5

Hubert F. M. Goenner

引用次数: 60

Massive Gravity 巨大的引力

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-12-01 DOI: 10.12942/lrr-2014-7

Claudia de Rham

引用次数: 800

Time-Delay Interferometry 时滞干涉法

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-08-05 DOI: 10.12942/lrr-2014-6

Massimo Tinto, Sanjeev V. Dhurandhar

{"title":"Time-Delay Interferometry","authors":"Massimo Tinto, Sanjeev V. Dhurandhar","doi":"10.12942/lrr-2014-6","DOIUrl":"https://doi.org/10.12942/lrr-2014-6","url":null,"abstract":"Equal-arm detectors of gravitational radiation allow phase measurements many orders of magnitude below the intrinsic phase stability of the laser injecting light into their arms. This is because the noise in the laser light is common to both arms, experiencing exactly the same delay, and thus cancels when it is differenced at the photo detector. In this situation, much lower level secondary noises then set the overall performance. If, however, the two arms have different lengths (as will necessarily be the case with space-borne interferometers), the laser noise experiences different delays in the two arms and will hence not directly cancel at the detector. In order to solve this problem, a technique involving heterodyne interferometry with unequal arm lengths and independent phase-difference readouts has been proposed. It relies on properly time-shifting and linearly combining independent Doppler measurements, and for this reason it has been called time-delay interferometry (TDI).This article provides an overview of the theory, mathematical foundations, and experimental aspects associated with the implementation of TDI. Although emphasis on the application of TDI to the Laser Interferometer Space Antenna (LISA) mission appears throughout this article, TDI can be incorporated into the design of any future space-based mission aiming to search for gravitational waves via interferometric measurements. We have purposely left out all theoretical aspects that data analysts will need to account for when analyzing the TDI data combinations.","PeriodicalId":686,"journal":{"name":"Living Reviews in Relativity","volume":"17 1","pages":""},"PeriodicalIF":40.6,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.12942/lrr-2014-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4197805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 70

The Evolution of Compact Binary Star Systems 致密双星系统的演化

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-05-05 DOI: 10.12942/lrr-2014-3

Konstantin A. Postnov, Lev R. Yungelson

引用次数: 289

The Hole Argument and Some Physical and Philosophical Implications 洞论及其物理和哲学意义

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2014-02-06 DOI: 10.12942/lrr-2014-1

John Stachel

{"title":"The Hole Argument and Some Physical and Philosophical Implications","authors":"John Stachel","doi":"10.12942/lrr-2014-1","DOIUrl":"https://doi.org/10.12942/lrr-2014-1","url":null,"abstract":"This is a historical-critical study of the hole argument, concentrating on the interface between historical, philosophical and physical issues. Although it includes a review of its history, its primary aim is a discussion of the contemporary implications of the hole argument for physical theories based on dynamical, background-independent space-time structures.The historical review includes Einstein’s formulations of the hole argument, Kretschmann’s critique, as well as Hilbert’s reformulation and Darmois’ formulation of the general-relativistic Cauchy problem. The 1970s saw a revival of interest in the hole argument, growing out of attempts to answer the question: Why did three years elapse between Einstein’s adoption of the metric tensor to represent the gravitational field and his adoption of the Einstein field equations?The main part presents some modern mathematical versions of the hole argument, including both coordinate-dependent and coordinate-independent definitions of covariance and general covariance; and the fiber bundle formulation of both natural and gauge natural theories. By abstraction from continuity and differentiability, these formulations can be extended from differentiable manifolds to any set; and the concepts of permutability and general permutability applied to theories based on relations between the elements of a set, such as elementary particle theories.We are closing with an overview of current discussions of philosophical and physical implications of the hole argument.","PeriodicalId":686,"journal":{"name":"Living Reviews in Relativity","volume":"17 1","pages":""},"PeriodicalIF":40.6,"publicationDate":"2014-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.12942/lrr-2014-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4246253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 64

Gravitational-Wave Tests of General Relativity with Ground-Based Detectors and Pulsar-Timing Arrays 用地基探测器和脉冲星定时阵列对广义相对论的引力波检验

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2013-11-06 DOI: 10.12942/lrr-2013-9

Nicolás Yunes, Xavier Siemens

{"title":"Gravitational-Wave Tests of General Relativity with Ground-Based Detectors and Pulsar-Timing Arrays","authors":"Nicolás Yunes, Xavier Siemens","doi":"10.12942/lrr-2013-9","DOIUrl":"https://doi.org/10.12942/lrr-2013-9","url":null,"abstract":"This review is focused on tests of Einstein’s theory of general relativity with gravitational waves that are detectable by ground-based interferometers and pulsar-timing experiments. Einstein’s theory has been greatly constrained in the quasi-linear, quasi-stationary regime, where gravity is weak and velocities are small. Gravitational waves will allow us to probe a complimentary, yet previously unexplored regime: the non-linear and dynamical strong-field regime. Such a regime is, for example, applicable to compact binaries coalescing, where characteristic velocities can reach fifty percent the speed of light and gravitational fields are large and dynamical. This review begins with the theoretical basis and the predicted gravitational-wave observables of modified gravity theories. The review continues with a brief description of the detectors, including both gravitational-wave interferometers and pulsar-timing arrays, leading to a discussion of the data analysis formalism that is applicable for such tests. The review ends with a discussion of gravitational-wave tests for compact binary systems.","PeriodicalId":686,"journal":{"name":"Living Reviews in Relativity","volume":"16 1","pages":""},"PeriodicalIF":40.6,"publicationDate":"2013-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.12942/lrr-2013-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4272852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 303

Classification of Near-Horizon Geometries of Extremal Black Holes 极端黑洞近视界几何的分类

IF 40.6 2区物理与天体物理

Living Reviews in Relativity Pub Date : 2013-09-25 DOI: 10.12942/lrr-2013-8

Hari K. Kunduri, James Lucietti

引用次数: 224