F2a: Support to PCCP

Check out the project news!


  • The Paris Centre for Cosmological Physics is a place of research, education and scientific exchanges in the field of cosmology, or more generally the physics of the Universe. It was created in February 2010 by George F. Smoot, when he was hired as professor of the University Paris-Diderot and he saw the opportunity to create a large Parisian centre dedicated to cosmology.

    Supported from the start by University Paris Diderot, CNRS/IN2P3 and the Paris Observatory, PCCP aims at developing a synergy between the Parisian laboratories (at present APC, LPNHE, LUTh, GEPI, LPTENS) to enhance the contribution of the French community to the rapidly developing field of cosmology.

    LabEx UnivEarthS contributes to the financing of some of the actions of PCCP such as the organization of workshops, visitors and postdoctoral programs, but also the training of high school teachers and the conception of a general public MOOC to share a scientific adventure on the frontiers of the knowledge.

    • Pierre Binétruy (PR, Paris Diderot)
    • George F. Smoot (Chaire d’Excellence SPC)
    • Michel Spiro (Conseiller Scientifique, CEA)
    • Elias Kiritsis (Chercheur, CNRS, ERC)
    • Valerie Domcke (Postdoc, Labex UnivEarthS & PCCP)
    • Andrea Tartari (Postdoc LabEx F2 & Chaire Excellence)
    • Dhiraj Kumar Hazra (Postdoc, Paris Diderot Chaire d’Excellence)
    • Ivan Debono (Postdoc, UE Malte)
    • Mauro Pieroni (Doctorant, SPC fellowship)
    • Marie Verleure (Chef de Projet, Paris Diderot)



  • Outreach

    • Teaching the Universe : 3 days annual workshop designed for high school teachers
    • General Public Mooc (Massive Open Online Course): Gravity! From Big Bang to black holes

    Scientific activities

    • Workshops
    • Conferences


    • Visitor program
    • Fellowships

     CMB detection workshop

    CMB detection workshop

    Map of cosmology concepts

    Map of cosmology concepts

  • See the PCCP web site: pariscosmo.fr



Detection prospects for the Cosmic Neutrino Background using laser interferometers

Valerie Domcke, Martin Spinrath


The cosmic neutrino background is a key prediction of Big Bang cosmology which has not been observed yet. The movement of the earth through this neutrino bath creates a force on a pendulum, as if it was exposed to a cosmic wind. We revise here estimates for the resulting pendulum acceleration and compare it to the theoretical sensitivity of an experimental setup where the pendulum position is measured using current laser interferometer technology as employed in gravitational wave detectors. We discuss how a significant improvement of this setup can be envisaged in a micro gravity environment. The proposed setup could simultaneously function as a dark matter detector in the sub-MeV range, which currently eludes direct detection constraints.

Arxiv link: https://arxiv.org/abs/1703.08629 [astro-ph.CO]


Metastable Dark Energy with Radioactive-like Decay

Date of publication: 2016-10-17

Authors: Arman Shafieloo, Dhiraj Kumar Hazra, Varun Sahni, Alexei A. Starobinsky

arxiv.org/abs/1610.05192  [astro-ph.CO]

Consistency of the Planck CMB data and ΛCDM cosmology

Date of publication: 2016-10-24

Authors: Arman Shafieloo, Dhiraj Kumar Hazra

arxiv.org/abs/1609.09781 [gr-qc]


General Relativity and Cosmology: Unsolved Questions and Future Directions

Ivan Debono, George F. Smoot

Sept. 2016, Journal-ref: Universe. 2016; 2(4):23

e-print : arXiv:1609.09781 [astro-ph.CO]


A Brief History of Gravitational Waves

Jorge L. Cervantes-Cota, Salvador Galindo-Uribarri, George F. Smoot

Sept. 2016, Journal-ref: Universe 2016, 2(3), 22

e-print : arXiv:1609.09400 [astro-ph.HE]


Direct search for features in the primordial bispectrum

Stephen Applebya , Jinn-Ouk Gongb, Dhiraj Kumar Hazrab, Arman Shafielooe, Spyros Sypsasb

July 2016, ScienceDirect – Physics Letters B


A simple model for the evolution of a non-Abelian cosmic string network

G. Cella (INFN, Pisa), M. Pieroni (APC, Paris & Paris Cent. Cosmol. Phys.)

June 16, 2016 – 13 pages

e-Print: arXiv:1512.02117 [astro-ph.CO]

Primordial features and Planck polarization

Dhiraj Kumar Hazra (APC, Paris), Arman Shafieloo (KAIST, Taejon), George F. Smoot (APC, Paris & Paris U., IV & Hong Kong U. Sci. Tech. & UC, Berkeley & LBNL, Berkeley), Alexei A. Starobinsky (Kazan State U. & Landau Inst.).

May 6, 2016. 22 pp.
e-Print: arXiv:1605.02106 [astro-ph.CO]


Cella (INFN, Pisa), M. Pieroni (APC, Paris & Paris Cent. Cosmol. Phys.). June 16, 2016 – 13 pages. A simple model for the evolution of a non-Abelian cosmic string network.e-Print: arXiv:1512.02117 [astro-ph.CO]


Valerie Domcke, Mauro Pieroni, Pierre Binétruy. Mar 3, 2016 Primordial gravitational waves for universality classes of pseudoscalar inflation. e-Print: arXiv:1603.01287 [astro-ph.CO]


Stephen Appleby, Jinn-Ouk Gong, Dhiraj Kumar Hazra, Arman Shafieloo, Spyros Sypsas. December 30, 2015. Direct search for features in the primordial bispectrum e-print : http://arxiv.org/abs/1512.08977 [astro-ph.CO]


Tartari, B. Bélier, N. Bleurvacq, M. Calvo, D. Cammilleri, T. Decourcelle, A. Monfardini, I. Moric, M. Piat, D. Prêle, G. F. Smoot. December 29, 2015. LEKIDs as mm-Wave Polarisation Analysers: Fabrication, Test Bench and Early Results e-print : http://link.springer.com/article/10.1007/s10909-015-1421-8


Tartari, J. Aumont, S. Banfi, P. Battaglia, E. S. Battistelli, A. Baù, B. Bélier, D. Bennett, L. Bergé, Affiliated with CSNSM, Univ Paris-Sud, CNRS/IN2P3 and 67 more. December 28, 2015. QUBIC: A Fizeau Interferometer Targeting Primordial B-Modes e-print : http://link.springer.com/article/10.1007/s10909-015-1398-3


G.Cella, M. Pieroni. Dec 7, 2015. A simple model for the evolution of a non-Abelian cosmic string network. e-Print: arXiv:1512.02117 [astro-ph.CO]


Mauro Pieroni. Oct 12, 2015. βfunction formalism for inflationary models with a non minimal coupling with gravity. e-Print: arXiv:1510.03691 [hep-ph]


Wenbin Lu, Pawan Kumar, George F. Smoot. Jan 29, 2015 – 13 pages. Probing Massive Stars Around Gamma-Ray Burst Progenitors. e-Print: arXiv:1501.07606 [astro-ph.HE]


George F. Smoot, Ivan Debono. Jul 14, 2014. 27 pp. 21-cm Intensity Mapping with FAST. e-Print: arXiv:1407.3583 [astro-ph.CO]


Binetruy, E. Kiritsis, J. Mabillard, M. Pieroni, C. Rosset. July 3 2014. Universality classes for models of inflation

e-Print: arXiv:1407.0820 [astro-ph.CO]


Pierre Binétruy, Alexis Helou. June 6 2014. The Apparent Universe. e-Print : arXiv:1406.1658 [gr-qc]


George F. Smoot. May 12, 2014. See Saw Inflation / Dark Matter / Dark Energy / Baryogenesis. e-Print: arXiv:1405.2776 [astro-ph.CO]


Dhiraj Kumar Hazra, Arman Shafieloo, George F. Smoot, Alexei A. Starobinsky. May 8, 2014. Wiggly Whipped Inflation. e-Print: arXiv:1405.2012 [astro-ph.CO]


Healthy theories beyond Horndeski

Jérôme Gleyzes (IPhT, Saclay & U. Paris-Sud 11, Dept. Phys., Orsay), David Langlois, Federico Piazza (APC, Paris & Paris Cent. Cosmol. Phys.), Filippo Vernizzi (IPhT, Saclay). Apr 25, 2014. Healthy theories beyond Horndeski. e-Print: arXiv:1404.6495 [hep-th]


Pawan Kumar, George F. Smoot. Feb 11, 2014. Some Implications of inverse-Compton Scattering of Hot Cocoon Radiation by relativistic jets in Gamma-Ray Bursts. e-Print: arXiv:1402.2656 [astro-ph.HE]


A mm-Wave Polarisation Analyser Using LEKIDs: Strategy and Preliminary Numerical Results

Tartari, A.; Belier, B.; Calvo, M.; Cammilleri, V. D.; Monfardini, A.; Piat, M.; Prêle, D.; Smoot, G. F.. January 29, 2014. A mm-Wave Polarisation Analyser Using LEKIDs: Strategy and Preliminary Numerical Results

. http://link.springer.com/article/10.1007/s10909-013-1055-7


Federico Piazza (APC, Paris & Paris Cent. Cosmol. Phys.), Heinrich Steigerwald (Marseille, CPT & Toulon U.), Christian Marinoni (Marseille, CPT & Toulon U. & Inst. U. de France). Dec 20, 2013. Phenomenology of dark energy: exploring the space of theories with future redshift surveys. e-Print: arXiv:1312.6111 [astro-ph.CO]


QUBIC Collaboration (A. Ghribi (APC, Paris) , J. Aumont (Orsay, IAS) , E.S. Battistelli (Rome U.) , A. Bau (Milan U.) , L. Berge (CSNSM, Orsay) , J-Ph. Bernard (IRAP, Toulouse) , M. Bersanelli (Milan U.) , M-A. Bigot-Sazy, G. Bordier (APC, Paris) , E.T. Bunn (Richmond U.) , F. Cavaliere (Milan U.) , P. Chanial (APC, Paris) , A. Coppolecchia (Rome U.) , T. Decourcelle (APC, Paris) , P. De Bernardis, M. De Petris (Rome U.) , A-A. Drilien, L. Dumoulin (CSNSM, Orsay) , M.C. Falvella (ASDC, Frascati) , A. Gault (Wisconsin U., Madison) , M. Gervasi (Milan U.) , M. Giard (IRAP, Toulouse) , M. Gradziel (NUIM, Maynooth) , L. Grandsire (APC, Paris) , D. Gayer (NUIM, Maynooth) , J-Ch. Hamilton (APC, Paris) , V. Haynes (Manchester U.) , Y-G. Hiraut (APC, Paris) , N. Holtzer (CSNSM, Orsay) , J. Kaplan (APC, Paris) , A. Korotkov (Brown U.) , J. Lande (IRAP, Toulouse) , A. Lowitz (Wisconsin U., Madison) , B. Maffei (Manchester U.) , S. Marnieros (CSNSM, Orsay) , J. Martino (Orsay, IAS) , S. Masi (Rome U.) , A. Mennella (Milan U.) , L. Montier (IRAP, Toulouse) , A. Murphy (NUIM, Maynooth) , M.W. Ng (Manchester U.) , E. Olivieri (CSNSM, Orsay) , F. Pajot (Orsay, IAS) , A. Passerini (Milan U.) , F. Piacentini (Rome U.) , M. Piat (APC, Paris) , L. Piccirillo, G. Pisano (Manchester U.) , D. Prele (APC, Paris) , D. Rambaud (IRAP, Toulouse) , O. Rigaut (CSNSM, Orsay) , C. Rosset (APC, Paris) , M. Salatino, A. Schillaci (Rome U.) , S. Scully, C. O’Sullivan (NUIM, Maynooth) , A. Tartari (APC, Paris) , P. Timbie (Wisconsin U., Madison) , G. Tucker (Brown U.) , L. Vibert (Orsay, IAS) , F. Voisin (APC, Paris) , B. Watson (Manchester U.) , M. Zannoni (Milan U.)

Jul 22, 2013 – Latest Progress on the QUBIC Instrument, e-Print: arXiv:1307.5701 [astro-ph.IM] | PDF