Cosmic acceleration by means of a massive graviton

• Project Area: Why does the Universe accelerate? - Exhaustive study and challenge for the future -
• Project/Area Number: 16H01099
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Kyoto University
• Principal Investigator: DEFELICE Antonio 京都大学, 基礎物理学研究所, 准教授 (50741899)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: Massive gravity / Modified gravity / Dark Energy / Cosmology / 宇宙物理

Outline of Annual Research Achievements

During the last year I have worked on several aspects of the minimal theory of massive gravity (MTMG) and bigravity, two of the models that I have recently introduced together with my collaborators.

In the context of MTMG, I have attempted to search for a modification of gravity which could get a better fit to the data, and at the same time, to give some insight of how a viable theory of massive gravity might look like.

Since last April, I have written papers published in high‐impact‐factor peer‐reviewed journals. In particular, I have understood how MTMG can influence some Dark Energy data and proved that it can do a better fit with respect to the standard model of cosmology. Although other more precise data are necessary to further confirm MTMG these results are very promising.

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Stable cosmology in chameleon bigravity (2018)
  • Author(s): De Felice Antonio、Mukohyama Shinji、Oliosi Michele、Watanabe Yota
  • Journal Title: Physical Review D Volume: 97 Issue: 2 Pages: 024050-024050
  • DOI: 10.1103/physrevd.97.024050
  • NAID: 120006457162
  • Peer Reviewed / Open Access
• [Journal Article] Extending applicability of bimetric theory: chameleon bigravity (2018)
  • Author(s): De Felice Antonio、Mukohyama Shinji、Uzan Jean-Philippe
  • Journal Title: General Relativity and Gravitation Volume: 50 Issue: 2 Pages: 1-12
  • DOI: 10.1007/s10714-018-2342-z
• [Journal Article] Horndeski extension of the minimal theory of quasidilaton massive gravity (2017)
  • Author(s): De Felice Antonio、Mukohyama Shinji、Oliosi Michele
  • Journal Title: Physical Review D Volume: 96 Issue: 10
  • DOI: 10.1103/physrevd.96.104036
  • Peer Reviewed / Open Access
• [Journal Article] de Sitter limit analysis for dark energy and modified gravity models (2017)
  • Author(s): De Felice Antonio、Frusciante Noemi、Papadomanolakis Georgios
  • Journal Title: Physical Review D Volume: 96 Issue: 2
  • DOI: 10.1103/physrevd.96.024060
• [Journal Article] Gravitational Waves from Binary Black Hole Mergers inside Stars (2017)
  • Author(s): Fedrow Joseph M.、Ott Christian D.、Sperhake Ulrich、Blackman Jonathan、Haas Roland、Reisswig Christian、De Felice Antonio
  • Journal Title: Physical Review Letters Volume: 119 Issue: 17
  • DOI: 10.1103/physrevlett.119.171103
• [Journal Article] Observational constraints on generalized Proca theories (2017)
  • Author(s): De Felice Antonio、Heisenberg Lavinia、Tsujikawa Shinji
  • Journal Title: Physical Review D Volume: 95 Issue: 12 Pages: 1-18
  • DOI: 10.1103/physrevd.95.123540
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Minimal theory of quasidilaton massive gravity (2017)
  • Author(s): De Felice Antonio、Mukohyama Shinji、Oliosi Michele
  • Journal Title: Physical Review D Volume: 96 Issue: 2
  • DOI: 10.1103/physrevd.96.024032
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] On the stability conditions for theories of modified gravity in presence of matter fields (2017)
  • Author(s): A. De Felice, N. Frusciante and G. Papadomanolakis
  • Journal Title: Journal of Cosmology and Astroparticle Physics Volume: 03 Issue: 03 Pages: 027-027
  • DOI: 10.1088/1475-7516/2017/03/027
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Graviton mass might reduce tension between early and late time cosmological data (2017)
  • Author(s): A. De Felice and S. Mukohyama
  • Journal Title: Physical Review Letters Volume: 118 Issue: 9 Pages: 091104-091104
  • DOI: 10.1103/physrevlett.118.091104
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Effective gravitational couplings for cosmological perturbations in generalized Proca theories (2016)
  • Author(s): Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase, Shinji Mukohyama, Shinji Tsujikawa, Ying-li Zhang
  • Journal Title: Physical Review D Volume: 94 Issue: 4 Pages: 044024-044024
  • DOI: 10.1103/physrevd.94.044024
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Cosmology in generalized Proca theories (2016)
  • Author(s): Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase, Shinji Mukohyama, Shinji Tsujikawa, Ying-li Zhang
  • Journal Title: Journal of cosmology and astroparticle physics Volume: 06 Issue: 06 Pages: 048-048
  • DOI: 10.1088/1475-7516/2016/06/048
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] New quasidilaton theory in partially constrained vielbein formalism (2016)
  • Author(s): A. De Felice, A. E. Gumrukcuoglu, L. Heisenberg, S. Mukohyama and N. Tanahashi
  • Journal Title: Journal of Cosmology and Astroparticle Physics Volume: 05 Issue: 05 Pages: 061-061
  • DOI: 10.1088/1475-7516/2016/05/061
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Screening fifth forces in generalized Proca theories (2016)
  • Author(s): Antonio De Felice, Lavinia Heisenberg, Ryotaro Kase, Shinji Tsujikawa, Ying-li Zhang, Gong-Bo Zhao
  • Journal Title: Physical Review D Volume: 93 Issue: 10 Pages: 104016-104016
  • DOI: 10.1103/physrevd.93.104016
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Phenomenology in minimal theory of massive gravity (2016)
  • Author(s): A. De Felice and S. Mukohyama
  • Journal Title: Journal of Cosmology and Astroparticle Physics Volume: 04 Issue: 04 Pages: 028-028
  • DOI: 10.1088/1475-7516/2016/04/028
  • NAID: 120005841439
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] The theory of Minimal Quasidilaton (2017)
  • Author(s): Antonio De Felice
  • Organizer: New perspectives on cosmology
  • Place of Presentation: Postech, Pohang, South Korea
  • Year and Date: 2017-02-13
  • Int'l Joint Research / Invited
• [Presentation] Cosmological Implications in Massive Gravity (2017)
  • Author(s): Antonio De Felice
  • Organizer: Invited plenary talk in "Ninth Aegean Summer School. Einstein's theory of gravity and its modifications: from theory to observations" Apollonia, Sifnos, September 18-23, 2017.
  • Int'l Joint Research / Invited
• [Presentation] The theory of Minimal Quasidilaton (2017)
  • Author(s): Antonio De Felice
  • Organizer: Seminar
  • Place of Presentation: Lisbon University, Lisbon, Portugal
  • Int'l Joint Research
• [Presentation] The theory of Minimal Quasidilaton (2017)
  • Author(s): Antonio De Felice
  • Organizer: Seminar
  • Place of Presentation: Tokyo University of Science, Tokyo
  • Invited
• [Presentation] The theory of Minimal Massive gravity (2016)
  • Author(s): Antonio De Felice
  • Organizer: Varcosmofun '16
  • Place of Presentation: University of Szczecin, Szczecin, Poland
  • Year and Date: 2016-09-12
  • Int'l Joint Research
• [Presentation] The theory of Minimal Massive gravity (2016)
  • Author(s): Antonio De Felice
  • Organizer: IF-YITP GR+HEP+COSMO International Symposium VI
  • Place of Presentation: Naresuan University, Phitsanulok, Thailand
  • Year and Date: 2016-08-03
  • Int'l Joint Research
• [Presentation] The theory of Minimal Massive gravity (2016)
  • Author(s): Antonio De Felice
  • Organizer: 3rd Korea-Japan Workshop on Dark Energy
  • Place of Presentation: KASI, Daejon, South Korea
  • Year and Date: 2016-04-04
  • Int'l Joint Research
• [Presentation] The phenomenology of the Minimal Theory of Massive Gravity (2016)
  • Author(s): Antonio De Felice
  • Organizer: Seminar
  • Place of Presentation: Kobe University, Kobe
  • Invited