Search Results - "De Risi, G."

Refine Results
  1. 1

    Relic gravitons on Kasner-like branes by Cavaglià, M., De Risi, G., Gasperini, M.

    Published in Physics letters. B (17-03-2005)
    “…We discuss the cosmological amplification of tensor perturbations in a simple example of brane-world scenario, in which massless gravitons are localized on a…”
    Get full text
    Journal Article
  2. 2

    Low-energy graceful exit in anisotropic string cosmology backgrounds by De Risi, G., Gasperini, M.

    Published in Physics letters. B (29-11-2001)
    “…We discuss the possibility of a smooth transition from the pre- to the post-big bang regime, in the context of the lowest-order string effective action…”
    Get full text
    Journal Article
  3. 3

    A diagrammatic approach to the spectrum of cosmological perturbations by Risi, G.De, Gasperini, M.

    Published in Physics letters. B (22-03-2001)
    “…We compute the spectral distribution of the quantum fluctuations of the vacuum, amplified by inflation, after an arbitrary number of background transitions…”
    Get full text
    Journal Article
  4. 4

    Induced cosmology on a codimension-2 brane in a conical bulk by De Risi, G.

    Published in Nuclear physics. B (11-04-2011)
    “…We study the cosmology of a 5-dimensional brane, which represents a regularization of a 4-dimensional codimension-2 brane, embedded in a conical bulk. The…”
    Get full text
    Journal Article
  5. 5

    Cosmological backreaction of heavy string states by De Risi, G

    Published 19-10-2011
    “…We propose a mechanism to have a smooth transition from a pre-Big Bang phase to a standard cosmological phase. Such transition is driven by gravitational…”
    Get full text
    Journal Article
  6. 6

    Induced cosmology on a codimension-2 brane in a conical bulk by De Risi, G

    Published 10-01-2011
    “…Nucl.Phys.B845:246-256,2011 We study the cosmology of a 5-dimensional brane, which represents a regularization of a 4-dimensional codimension-2 brane, embedded…”
    Get full text
    Journal Article
  7. 7

    Non-singular Brane cosmology with a Kalb-Ramond field by De Risi, G

    Published 12-05-2008
    “…We present a model in which a 3-brane is embedded in a warped 5-dimensional background with a dilaton and a Kalb-Ramond 2-form. We show that it is possible to…”
    Get full text
    Journal Article
  8. 8

    Bouncing cosmology from Kalb-Ramond Braneworld by De Risi, G

    Published 12-03-2008
    “…Phys.Rev.D77:044030,2008 We consider a 3-brane embedded in a warped 5-dimensional background with a dilaton and a Kalb-Ramond 2-form. We show that it is…”
    Get full text
    Journal Article
  9. 9
  10. 10
  11. 11

    Massless and massive graviton spectra in anisotropic dilatonic braneworld cosmologies by De Risi, G

    Published 30-01-2006
    “…Phys.Rev. D73 (2006) 124015 We consider a braneworld model in which an anisotropic brane is embedded in a dilatonic background. We solve the background…”
    Get full text
    Journal Article
  12. 12

    Relic gravitons on Kasner branes by De Risi, G

    Published 28-11-2005
    “…J.Phys.Conf.Ser. 33 (2006) 209-214 We present a simple model in which a brane with anisotropic metric is embedded in an AdS bulk. We discuss the localization…”
    Get full text
    Journal Article
  13. 13

    Nanoscale displacement sensing based on nonlinear frequency mixing in quantum cascade lasers by Mezzapesa, F. P, Columbo, L. L, De Risi, G, Brambilla, M, Dabbicco, M, Spagnolo, V, Scamarcio, G

    Published 30-04-2015
    “…We demonstrate a sensor scheme for nanoscale target displacement that relies on a single Quantum Cascade Laser (QCL) subject to optical feedback. The system…”
    Get full text
    Journal Article
  14. 14

    Relic gravitons on Kasner-like branes by Cavaglia', M, De Risi, G, Gasperini, M

    Published 31-01-2005
    “…Phys.Lett. B610 (2005) 9-17 We discuss the cosmological amplification of tensor perturbations in a simple example of brane-world scenario, in which massless…”
    Get full text
    Journal Article
  15. 15

    Low-energy graceful exit in anisotropic string cosmology backgrounds by De Risi, G, Gasperini, M

    Published 18-09-2001
    “…Phys.Lett. B521 (2001) 335-342 We discuss the possibility of a smooth transition from the pre- to the post-big bang regime, in the context of the lowest-order…”
    Get full text
    Journal Article
  16. 16

    A diagrammatic approach to the spectrum of cosmological perturbations by De Risi, G, Gasperini, M

    Published 30-01-2001
    “…Phys.Lett. B503 (2001) 140-146 We compute the spectral distribution of the quantum fluctuations of the vacuum, amplified by inflation, after an arbitrary…”
    Get full text
    Journal Article
  17. 17

    Space/Time Noncommutativity in String Theories without Background Electric Field by De Risi, G, Grignani, G, Orselli, M

    Published 07-11-2002
    “…JHEP 0212 (2002) 031 The appearance of space/time non-commutativity in theories of open strings with a constant non-diagonal background metric is considered…”
    Get full text
    Journal Article
  18. 18

    DLCQ String Spectrum from ${\cal N}=2$ SYM Theory by De Risi, G, Grignani, G, Orselli, M, Semenoff, G. W

    Published 30-09-2004
    “…JHEP0411:053,2004 We study non planar corrections to the spectrum of operators in the ${\mathcal N}=2$ supersymmetric Yang Mills theory which are dual to…”
    Get full text
    Journal Article
  19. 19
  20. 20