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Spherically symmetric solution of f(R,G) gravity at low energy (2015)

Bofeng Wu and Bo-Qiang Ma

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-11

Beschreibung: Author(s): Bofeng Wu and Bo-Qiang Ma The weak-field and slow-motion limit of f ( R , G ) gravity is developed up to ( v / c ) 4 order in a spherically symmetric background. Considering the Taylor expansion of a general function f around vanishing values of R and G , we present general vacuum solutions up to ( v / c ) 4 order for the gravitational fiel… [Phys. Rev. D 92, 044012] Published Mon Aug 10, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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Intrinsic curvature of thermodynamic potentials for black holes with critical points (2015)

Brian P. Dolan

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-12

Beschreibung: Author(s): Brian P. Dolan The geometry of thermodynamic state space is studied for asymptotically anti–de Sitter black holes in D -dimensional space-times. Convexity of thermodynamic potentials and the analytic structure of the response functions is analyzed. The thermodynamic potentials can be used to define a metric on the … [Phys. Rev. D 92, 044013] Published Tue Aug 11, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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New constraints on f(R) gravity from clusters of galaxies (2015)

Matteo Cataneo, David Rapetti, Fabian Schmidt, Adam B. Mantz, Steven W. Allen, Douglas E. Applegate, Patrick L. Kelly, Anja von der Linden, and R. Glenn Morris

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-08

Beschreibung: Author(s): Matteo Cataneo, David Rapetti, Fabian Schmidt, Adam B. Mantz, Steven W. Allen, Douglas E. Applegate, Patrick L. Kelly, Anja von der Linden, and R. Glenn Morris The abundance of massive galaxy clusters is a powerful probe of departures from general relativity (GR) on cosmic scales. Despite current stringent constraints placed by stellar and galactic tests, on larger scales alternative theories of gravity such as f ( R ) can still work as effective theories. He… [Phys. Rev. D 92, 044009] Published Fri Aug 07, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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4

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Parameter estimation of eccentric inspiraling compact binaries using an enhanced post circular model for ground-based detectors (2015)

Baosan Sun, Zhoujian Cao, Yan Wang, and Hsien-Chi Yeh

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-20

Beschreibung: Author(s): Baosan Sun, Zhoujian Cao, Yan Wang, and Hsien-Chi Yeh Inspiraling compact binaries have been identified as one of the most promising sources for gravitational-wave detection. These binaries are always expected to have been circularized by the gravitational radiation when they enter the detector’s frequency band. However, recent studies indicate that so… [Phys. Rev. D 92, 044034] Published Wed Aug 19, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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5

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Disformal dark energy at colliders (2015)

Philippe Brax, Clare Burrage, and Christoph Englert

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-21

Beschreibung: Author(s): Philippe Brax, Clare Burrage, and Christoph Englert Disformally coupled, light scalar fields arise in many of the theories of dark energy and modified gravity that attempt to explain the accelerated expansion of the Universe. They have proved difficult to constrain with precision tests of gravity because they do not give rise to fifth forces around s… [Phys. Rev. D 92, 044036] Published Thu Aug 20, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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6

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Bekenstein bounds and inequalities between size, charge, angular momentum, and energy for bodies (2015)

Sergio Dain

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-20

Beschreibung: Author(s): Sergio Dain Bekenstein bounds for the entropy of a body imply a universal inequality between size, energy, angular momentum, and charge. We prove this inequality in electromagnetism. We also prove it, for the particular case of zero angular momentum, in general relativity. We further discuss the relation of the… [Phys. Rev. D 92, 044033] Published Wed Aug 19, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

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7

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New scalar constraint operator for loop quantum gravity (2015)

Mehdi Assanioussi, Jerzy Lewandowski, and Ilkka Mäkinen

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): Mehdi Assanioussi, Jerzy Lewandowski, and Ilkka Mäkinen We present a concrete and explicit construction of a new scalar constraint operator for loop quantum gravity. The operator is defined on the recently introduced space of partially diffeomorphism invariant states, and this space is preserved by the action of the operator. To define the Euclidean part… [Phys. Rev. D 92, 044042] Published Fri Aug 21, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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8

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Energy in first order 2+1 gravity (2015)

Alejandro Corichi and Iraís Rubalcava-García

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-22

Beschreibung: Author(s): Alejandro Corichi and Iraís Rubalcava-García We consider Λ = 0 three-dimensional gravity with asymptotically flat boundary conditions. This system was studied by Ashtekar and Varadarajan within the second-order formalism—with metric variables—who showed that the Regge-Teitelboim formalism yields a consistent Hamiltonian description where, surpri… [Phys. Rev. D 92, 044040] Published Fri Aug 21, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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9

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Classical resolution of black hole singularities in arbitrary dimension (2015)

D. Bazeia, L. Losano, Gonzalo J. Olmo, D. Rubiera-Garcia, and A. Sanchez-Puente

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): D. Bazeia, L. Losano, Gonzalo J. Olmo, D. Rubiera-Garcia, and A. Sanchez-Puente A metric-affine approach is employed to study higher-dimensional modified gravity theories involving different powers and contractions of the Ricci tensor. It is shown that the field equations are always second-order, as opposed to the standard metric approach, where this is only achieved for Lagran… [Phys. Rev. D 92, 044018] Published Wed Aug 12, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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Near-horizon circular orbits and extremal limit for dirty rotating black holes (2015)

O. B. Zaslavskii

American Physical Society (APS)

In: Physical Review D

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Publikationsdatum: 2015-08-13

Beschreibung: Author(s): O. B. Zaslavskii We consider generic rotating axially symmetric “dirty” (surrounded by matter) black holes. Near-horizon circular equatorial orbits are examined in two different cases of near-extremal (small surface gravity κ ) and exactly extremal black holes. This has a number of qualitative distinctions. In the fi… [Phys. Rev. D 92, 044017] Published Wed Aug 12, 2015

Schlagwort(e): General Relativity and Gravitation

Print ISSN: 0556-2821

Digitale ISSN: 1089-4918

Thema: Physik

Publiziert von American Physical Society (APS)

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