Classical and Quantum Gravity最新文献_第3页

Accretion of generalized Chaplygin gas onto cosmologically coupled black holes 广义Chaplygin气体在宇宙耦合黑洞上的吸积

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-12 DOI: 10.1088/1361-6382/ae5b18

Luís Felipe Reis, Mario C Baldiotti and Orfeu Bertolami

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ADDENDUM: Low regularity approach to Bartnik’s conjecture (2025 Class. Quantum Grav. 42 215020) 附录：巴特尼克猜想的低正则性方法（2025级）。量子重力。42 215020)

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-12 DOI: 10.1088/1361-6382/ae5867

José L Flores, Jonatan Herrera and Didier A Solis

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Gauge invariant perturbations of F ( T , ... F （T，…）的规范不变扰动

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-12 DOI: 10.1088/1361-6382/ae59e5

Shivam Kumar Mishra, Jackson Levi Said and B Mishra

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Probing modified gravitational-wave dispersion with bursts from eccentric black-hole binaries 利用偏心黑洞双星爆发探测修正引力波色散

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-12 DOI: 10.1088/1361-6382/ae59e4

Nicholas Loutrel, Ava Bailey and Davide Gerosa

{"title":"Probing modified gravitational-wave dispersion with bursts from eccentric black-hole binaries","authors":"Nicholas Loutrel, Ava Bailey and Davide Gerosa","doi":"10.1088/1361-6382/ae59e4","DOIUrl":"https://doi.org/10.1088/1361-6382/ae59e4","url":null,"abstract":"Gravitational waves in general relativity are non-dispersive, yet a host of modified theories predict dispersion effects during propagation. In this work, we consider the impact of dispersion effects on gravitational-wave bursts from highly eccentric binary black holes. We consider the dispersion effects within the low-energy, effective field theory limit, and model the dispersion relation via standard parameterized deformations. Such modified dispersion relations produce two modifications to the burst waveform: a modification to the time of arrival of the bursts in the detector, which appears as a 2.5PN correction to the difference in burst arrival times, and a modification to the arrival time of individual orbital harmonics within the bursts themselves, resulting in a Bessel-type amplitude modulation of the waveform. Using the Fisher information matrix, we study projected constraints one might obtain with future observations of repeating burst signals with LIGO. We find that the projected constraints vary significantly depending on the theoretical mechanism producing the modified dispersion. For massive gravitons and multifractional spacetimes that break Lorentz invariance, bounds on the coupling parameters are generally weaker than current bounds. For other Lorentz invariance breaking models such as Hořava–Lifschitz gravity, as well as scenarios with extra dimensions, the bounds in optimal cases can be 1–3 orders of magnitude stronger than current bounds.","PeriodicalId":10282,"journal":{"name":"Classical and Quantum Gravity","volume":"81 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147664546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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q-deformed quantum mechanics and the thermodynamics of black hole/white hole spectral pair q-变形量子力学与黑洞/白洞光谱对热力学

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-09 DOI: 10.1088/1361-6382/ae59e8

S Jalalzadeh, R Jalalzadeh and H Moradpour

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Topological charge and black hole photon spheres in massive gravity 大质量引力下的拓扑电荷和黑洞光子球

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-08 DOI: 10.1088/1361-6382/ae5750

Pavan Kumar Yerra and Chandrasekhar Bhamidipati

{"title":"Topological charge and black hole photon spheres in massive gravity","authors":"Pavan Kumar Yerra and Chandrasekhar Bhamidipati","doi":"10.1088/1361-6382/ae5750","DOIUrl":"https://doi.org/10.1088/1361-6382/ae5750","url":null,"abstract":"In this paper, we investigate the existence and nature of the photon spheres (PS) in the background of four dimensional static and spherically symmetric black holes in the de Rham–Gabadadze–Tolley massive gravity theory. Apart from the known case of one PS, there are regions in the parameter space of massive gravity where either two or no PS’s exist outside the event horizon. Topological arguments show that, the case of one PS falls in the category of Einstein gravity (with topological charge −1) (Wei 2020 Phys. Rev. D102 064039), whereas, the cases with two or zero PS’s belong to a different topological class with total charge zero. PS’s of horizonless compact objects, also belong to the same class with total topological charge 0 (Cunha et al 2017 Phys. Rev. Lett.119 251102; Cunha and Herdeiro 2020 Phys. Rev. Lett.124 181101), though, one distinction can be made with the black holes in massive gravity. While in the former case, the inner PS is stable, in the later case, it is the outer PS which is stable (the inner PS is unstable). We also study the landscape of possible regions of existence of standard and exotic PS in the massive gravity parameter space, and correlate it with the horizon structure of the black holes.","PeriodicalId":10282,"journal":{"name":"Classical and Quantum Gravity","volume":"65 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147635827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blueshift of light rays induced by gravitational wave memory effect 由引力波记忆效应引起的光线蓝移

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-07 DOI: 10.1088/1361-6382/ae59e7

F L Carneiro, S C Ulhoa and J W Maluf

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From a collapsing radiating star to an evaporating black hole: a smooth transition from classical to quantum entropy 从坍缩的辐射恒星到蒸发的黑洞：从经典熵到量子熵的平滑过渡

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-07 DOI: 10.1088/1361-6382/ae59e6

Sarbari Guha, Shamima Khan and Rituparno Goswami

{"title":"From a collapsing radiating star to an evaporating black hole: a smooth transition from classical to quantum entropy","authors":"Sarbari Guha, Shamima Khan and Rituparno Goswami","doi":"10.1088/1361-6382/ae59e6","DOIUrl":"https://doi.org/10.1088/1361-6382/ae59e6","url":null,"abstract":"We present a robust mechanism, where the geometrical free-gravitational entropy of an isolated astrophysical radiating star undergoing continual gravitational collapse (where gravity dominates over all other fundamental forces), as measured by an external observer, makes a smooth transition to the Bekenstein–Hawking entropy at the onset of the horizon formation and in the late times of black hole (BH) evaporation. It is interesting to note that both in the classical collapsing phase and the semi classical evaporating BH phase, the matter is radiated via the Vaidya exterior that surrounds the collapsing radiating star as well as the evaporating BH thus formed. As the entropy of a BH is several orders of magnitude greater than the ordinary thermodynamic entropy of the original star, so the BH entropy is basically independent of the nature of the interior matter. Therefore, our result, being independent of the interior matter dynamics of the collapsing star, clearly indicates that the Bekenstein–Hawking entropy and its non-extensive nature indeed originates from the Riemannian geometry, which dictates the free-gravity entropy in general relativity.","PeriodicalId":10282,"journal":{"name":"Classical and Quantum Gravity","volume":"1 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147630762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Path integral approach to black-hole evaporation and accretion 黑洞蒸发和吸积的路径积分方法

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-07 DOI: 10.1088/1361-6382/ae5751

I Arraut and A K Mehta

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Evaluation of the tilt to length coefficient induced by wavefront error for the LISA interferometric test bench 波前误差对LISA干涉试验台倾斜长度系数的影响

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2026-04-06 DOI: 10.1088/1361-6382/ae4d9d

Maxime Vincent, Romain Arguel and Hubert Halloin

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