Cargèse Lectures on Brane Induced Gravity

Gregory Gabadadze

    Research output: Contribution to journalArticle

    Abstract

    A brief introduction is given to the subject of brane induced gravity. The 5D example is discussed in detail. The 4D laws of gravity are obtained on a brane embedded in an infinite volume extra space, where the problem of stabilization of the volume modulus is absent. The theory has two classically disjoint branches of solutions - the conventional and self-accelerated one. The conventional branch is perturbatively stable, and gives rise to predictions that are potentially measurable within the Solar system. The self-accelerated branch, on the other hand, provides an existence proof for an idea that the accelerated expansion of the Universe could be due to modified gravity. This branch, however, exhibits negative mass states, suggesting that the self-accelerated solution may not be free of instabilities. A proposal to overcome this difficulty in an extension of the original model, that also allows for the quantum gravity scale to be unrestricted, is discussed.

    Original languageEnglish (US)
    Pages (from-to)88-98
    Number of pages11
    JournalNuclear Physics B - Proceedings Supplements
    Volume171
    Issue numberSPEC. ISS.
    DOIs
    StatePublished - Sep 2007

    Fingerprint

    lectures
    gravitation
    solar system
    proposals
    universe
    stabilization
    expansion
    predictions

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Cargèse Lectures on Brane Induced Gravity. / Gabadadze, Gregory.

    In: Nuclear Physics B - Proceedings Supplements, Vol. 171, No. SPEC. ISS., 09.2007, p. 88-98.

    Research output: Contribution to journalArticle

    Gabadadze, Gregory. / Cargèse Lectures on Brane Induced Gravity. In: Nuclear Physics B - Proceedings Supplements. 2007 ; Vol. 171, No. SPEC. ISS. pp. 88-98.
    @article{8584a67558a8441683c67d888d805cbe,
    title = "Carg{\`e}se Lectures on Brane Induced Gravity",
    abstract = "A brief introduction is given to the subject of brane induced gravity. The 5D example is discussed in detail. The 4D laws of gravity are obtained on a brane embedded in an infinite volume extra space, where the problem of stabilization of the volume modulus is absent. The theory has two classically disjoint branches of solutions - the conventional and self-accelerated one. The conventional branch is perturbatively stable, and gives rise to predictions that are potentially measurable within the Solar system. The self-accelerated branch, on the other hand, provides an existence proof for an idea that the accelerated expansion of the Universe could be due to modified gravity. This branch, however, exhibits negative mass states, suggesting that the self-accelerated solution may not be free of instabilities. A proposal to overcome this difficulty in an extension of the original model, that also allows for the quantum gravity scale to be unrestricted, is discussed.",
    author = "Gregory Gabadadze",
    year = "2007",
    month = "9",
    doi = "10.1016/j.nuclphysbps.2007.06.005",
    language = "English (US)",
    volume = "171",
    pages = "88--98",
    journal = "Nuclear and Particle Physics Proceedings",
    issn = "2405-6014",
    publisher = "Elsevier",
    number = "SPEC. ISS.",

    }

    TY - JOUR

    T1 - Cargèse Lectures on Brane Induced Gravity

    AU - Gabadadze, Gregory

    PY - 2007/9

    Y1 - 2007/9

    N2 - A brief introduction is given to the subject of brane induced gravity. The 5D example is discussed in detail. The 4D laws of gravity are obtained on a brane embedded in an infinite volume extra space, where the problem of stabilization of the volume modulus is absent. The theory has two classically disjoint branches of solutions - the conventional and self-accelerated one. The conventional branch is perturbatively stable, and gives rise to predictions that are potentially measurable within the Solar system. The self-accelerated branch, on the other hand, provides an existence proof for an idea that the accelerated expansion of the Universe could be due to modified gravity. This branch, however, exhibits negative mass states, suggesting that the self-accelerated solution may not be free of instabilities. A proposal to overcome this difficulty in an extension of the original model, that also allows for the quantum gravity scale to be unrestricted, is discussed.

    AB - A brief introduction is given to the subject of brane induced gravity. The 5D example is discussed in detail. The 4D laws of gravity are obtained on a brane embedded in an infinite volume extra space, where the problem of stabilization of the volume modulus is absent. The theory has two classically disjoint branches of solutions - the conventional and self-accelerated one. The conventional branch is perturbatively stable, and gives rise to predictions that are potentially measurable within the Solar system. The self-accelerated branch, on the other hand, provides an existence proof for an idea that the accelerated expansion of the Universe could be due to modified gravity. This branch, however, exhibits negative mass states, suggesting that the self-accelerated solution may not be free of instabilities. A proposal to overcome this difficulty in an extension of the original model, that also allows for the quantum gravity scale to be unrestricted, is discussed.

    UR - http://www.scopus.com/inward/record.url?scp=34547662768&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=34547662768&partnerID=8YFLogxK

    U2 - 10.1016/j.nuclphysbps.2007.06.005

    DO - 10.1016/j.nuclphysbps.2007.06.005

    M3 - Article

    VL - 171

    SP - 88

    EP - 98

    JO - Nuclear and Particle Physics Proceedings

    JF - Nuclear and Particle Physics Proceedings

    SN - 2405-6014

    IS - SPEC. ISS.

    ER -