Gravitational waves from asymmetric oscillon dynamics?

被引：68

作者：

Amin, Mustafa A. ^{[1
]}

Braden, Jonathan ^{[2
]}

Copeland, Edmund J. ^{[3
]}

Giblin, John T., Jr. ^{[4
,5
]}

Solorio, Christian ^{[4
]}

Weiner, Zachary J. ^{[6
]}

Zhou, Shuang-Yong ^{[7
]}

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[2] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[3] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[4] Kenyon Coll, Dept Phys, Gambier, OH 43022 USA

[5] Case Western Reserve Univ, Dept Phys, CERCA ISO, Cleveland, OH 44106 USA

[6] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[7] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China

来源：

PHYSICAL REVIEW D | 2018年 / 98卷 / 02期

基金：

欧洲研究理事会; 美国国家科学基金会; 美国能源部;

关键词：

D O I：

10.1103/PhysRevD.98.024040

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It has been recently suggested that oscillons produced in the early universe from certain asymmetric potentials continue to emit gravitational waves for a number of e-folds of expansion after their formation, leading to potentially detectable gravitational wave signals. We revisit this claim by conducting a convergence study using graphics processing unit (GPU)-accelerated lattice simulations and show that numerical errors accumulated with time are significant in low-resolution scenarios, or in scenarios where the run-time causes the resolution to drop below the relevant scales in the problem. Our study determines that the dominant, growing high frequency peak of the gravitational wave signals in the fiducial "hill-top model" by Antusch et al., [Phys. Rev. Lett. 118, 011303 (2017).] is a numerical artifact. This finding prompts the need for a more careful analysis of the numerical validity of other similar results related to gravitational waves from oscillon dynamics.

引用

页数：6

共 35 条

[1] GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Afrough, M. ;

Agarwal, B. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allen, G. ;

Allocca, A. ;

Altin, P. A. ;

Amato, A. ;

Ananyeva, A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Angelova, S. V. ;

Antier, S. ;

Appert, S. ;

Arai, K. ;

Araya, M. C. ;

Areeda, J. S. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Atallah, D. V. ;

Aufmuth, P. ;

Aulbert, C. ;

AultONeal, K. ;

Austin, C. ;

Avila-Alvarez, A. ;

Babak, S. ;

Bacon, P. ;

Bader, M. K. M. .

PHYSICAL REVIEW LETTERS, 2018, 120 (09)

[2] Planck 2015 results XX. Constraints on inflation [J].

Ade, P. A. R. ;

Aghanim, N. ;

Arnaud, M. ;

Arroja, F. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bondi, J. R. ;

Borrillu, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, H. C. ;

Christensen, P. R. ;

Churchl, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Contreras, D. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[3] K-oscillons: Oscillons with noncanonical kinetic terms [J].

Amin, Mustafa A. .

PHYSICAL REVIEW D, 2013, 87 (12)

[4] Oscillons after Inflation [J].

Amin, Mustafa A. ;

Easther, Richard ;

Finkel, Hal ;

Flauger, Raphael ;

Hertzberg, Mark P. .

PHYSICAL REVIEW LETTERS, 2012, 108 (24)

[5] Flat-top oscillons in an expanding universe [J].

Amin, Mustafa A. ;

Shirokoff, David .

PHYSICAL REVIEW D, 2010, 81 (08)

[6]

[Anonymous], J HIGH ENERGY PHYS

[7]

[Anonymous], J COSMOL ASTROPART P

[8]

[Anonymous], ARXIV180104268

[9]

[Anonymous], J COSMOL ASTROPART P

[10] What can we learn from the stochastic gravitational wave background produced by oscillons? [J].

Antusch, Stefan ;

Cefala, Francesco ;

Orani, Stefano .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2018, (03)

← 1 2 3 4 →