Théories des interactions fondamentales (en)

CP3 - Research directions and experiments
As a driving motivation, our research activities aim to address some of the basic challenging issues presently facing us at the frontiers of the gauge theories of the fundamental quantum interactions and their matter couplings.

On the one hand, for well accepted or even established theories a solid understanding of their non-perturbative dynamics remains largely wanting. Undoubtedly, topological and geometrical properties in field space in relation to large gauge symmetries play crucial roles in this regard, to which perturbative gauge fixing procedures remain totally oblivious. A significant component of our research efforts addresses such issues within lower dimensional gauge theories from complementary non-perturbative points of view, also unraveling dualities between apparently disconnected theories.

Parallel to such studies is the pursuit of novel computational techniques and approaches towards multi-loop scattering amplitudes, on a par with studies of the mathematical structures of Feynman integrals and scattering amplitudes, relying on as many new mathematical frameworks as may be garnered and call on, with the aim to design new mathematical tools for precision computations in QFT, especially for LHC motivated precision processes. In particular, as soon as supersymmetries are involved, especially with N=4 supersymmetry in four dimensional space-time, much progress has been made over recent years and much scope for further understanding remains within reach.

On the other hand, present day gauge theories of the fundamental quantum interactions present their own challenges pointing towards new fundamental conceptual paradigms beyond quantum physics and gravity. Some of the exploratory paths being trodden are deformations of quantum mechanics, non-commutative or fuzzy space-time geometries, and topological theories for pure quantum gravity, being applied in a variety of physical circumstances. Approached from other perspectives, attempts are being pursued as well that aim to relate gauge coupling constant sectors and electroweak flavor coupling constant sectors within new unification schemes for all interactions.

Finally, progress in non-perturbative dynamics of gauge theories has often exploited advances made in condensed matter physics. Collective phenomena in lower dimensional fermionic systems display a variety of behaviors, in particular quantum Hall systems and their recently identified generalizations with a topological understanding having been achieved over the recent years of their distinctive physical properties reminding one of holographic-like properties in theories of gravity, which may well prove relevant to non-perturbative gauge dynamics alike. Thus some part of our research activities addresses such issues as well.

Projects

Click the title to show project description.
  • Combining complementary approaches to quantisation, exploration of integrability issues in quantum dynamics and noncommutative geometric structures

  • Analytic and algebraic properties of multi-loop integrals are analysed in the view of devising new mathematical tools for precision computations in QFT.

  • Multi-loops scattering amplitudes in N=4 Super Yang-Mills are analysed in the light of the integrability of the theory in the planar limit.

  • Extensions to the supersymmetric context of the Moyal non-commutative plane are being considered from different perspectives.

  • By emphasizing the relevance of topology in nonperturbative gauge dynamics in the presence of nontrivial space(time) topology, develop gauge invariant physical tools to approach the nonperturbative dynamics of such systems in approximation schemes. In an initial study, QED in lower dimensions is considered in detail.

  • Development of nonperturbative quantisation techniques of gauge theories (Yang-Mills, topological, gravity) and their application to particle physics and quantum field theory at finite temperature (in particular, within the context of superconductivity).
    Exploration of the consequences of noncommutative geometry in the search for the unification of the fundamental interactions (M-theory and superstrings, quantum gravity).

  • In the standard model version of the grand unified theory different gauge couplings intend to, but do not, meet at some higher scale. Here we will look for some better ways for the unification of the gauge coupling constants.

  • Quantum diffeomorphic gauge invariance and the total cosmological constant, inclusive of the quantum fluctuations of the gravitational field

  • The connections between topology in space(time) and in field configuration space and the non-perturbative dynamics of general gauge theories, inclusive of mass generating mechanims, are being studied.

Recent Publications

Click the title to show details.
  • Samuel Abreu, Ruth Britto, Claude Duhr, Einan Gardi, and James Matthew, October 14, 2019
    Refereed paper.

  • Jan Govaerts, Jean-François Stoffel (Editors), August 27, 2019

  • Johannes Broedel, Claude Duhr, Falko Dulat, Robin Marzucca, Lorenzo Tancredi, Brenda Penante, July 4, 2019
    Refereed paper.

  • Jan Govaerts, June 29, 2019
    Refereed paper. Contribution to proceedings. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • Daddy Balondo Iyela and Jan Govaerts, June 13, 2019
    Refereed paper. [Abstract] [PDF] [Journal] [Full text]

  • Samuel Abreu, J. Dormans, F. Febres Cordero, H. Ita, B. Page, April 29, 2019
    Contribution to proceedings.

  • Claude Duhr, Falko Dulat, April 14, 2019
    Refereed paper.

  • Claude Duhr, Henrik Johansson, Gregor Kälin, Gustav Mogull, Bram Verbeek, April 8, 2019
    Refereed paper.

  • S. Abreu, J. Dormans, F. Febres Cordero, H. Ita, B. Page and V. Sotnikov, March 28, 2019
    Refereed paper.

  • Johannes Broedel, Claude Duhr, Falko Dulat, Brenda Penante, Lorenzo Tancredi, February 24, 2019
    Refereed paper.

  • Samuel Abreu, Lance J. Dixon, Enrico Herrmann, Ben Page, Mao Zeng, January 23, 2019
    Refereed paper.

  • Samuel Abreu, Lance J. Dixon, Enrico Herrmann, Ben Page, and Mao Zeng, December 20, 2018
    Refereed paper.

  • S. Abreu, J. Dormans, F. Febres Cordero, H. Ita, and B. Page, December 6, 2018

  • Zhengwen Liu, November 27, 2018
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Vittorio Del Duca, Claude Duhr, Falko Dulat, Brenda Penante, November 26, 2018
    Refereed paper.

  • Vittorio Del Duca, Stefan Druc, James Drummond, Claude Duhr, Falko Dulat, Robin Marzucca, Georgios Papathanasiou and Bram Verbeek, November 22, 2018
    Contribution to proceedings.

  • Robin Marzucca, Bram Verbeek, November 20, 2018
    Refereed paper.

  • Claude Duhr and Zhengwen Liu, November 2, 2018
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • Johannes Broedel, Claude Duhr, Falko Dulat, Brenda Penante, Lorenzo Tancredi, September 25, 2018
    Refereed paper.

  • Zhengwen Liu and Xiaoran Zhao, September 19, 2018
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • Del Duca, Vittorio and Druc, Stefan and Drummond, James and Duhr, Claude and Dulat, Falko and Marzucca, Robin and Papathanasiou, Georgios and Verbeek, Bram, July 13, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • Samuel Abreu, Ruth Britto, Claude Duhr, Einan Gardi, James Matthew, July 12, 2018
    Contribution to proceedings.

  • Johannes Broedel, Claude Duhr, Falko Dulat, Brenda Penante, Lorenzo Tancredi, July 12, 2018
    Contribution to proceedings.

  • Johannes Broedel, Claude Duhr, Falko Dulat, Brenda Penante, Lorenzo Tancredi, July 2, 2018
    Contribution to proceedings.

  • Bertrand, Bruno and Govaerts, Jan, June 27, 2018
    Refereed paper. [Abstract] [PDF]

  • Jan Govaerts, June 27, 2018
    Refereed paper. Contribution to proceedings. [Abstract] [PDF] [Full text]

  • Johannes Broedel, Claude Duhr, Falko Dulat, Brenda Penante, Lorenzo Tancredi, March 23, 2018
    Refereed paper.

  • Vittorio Del Duca, Stefan Druc, James Drummond, Falko Dulat, Claude Duhr, Robin Marzucca, Georgios Papathanasiou, Bram Verbeek, January 26, 2018
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Abreu, Samuel and Britto, Ruth and Duhr, Claude and Gardi, Einan, January 9, 2018
    Contribution to proceedings. [Abstract] [PDF]

  • Broedel, Johannes and Duhr, Claude and Dulat, Falko and Tancredi, Lorenzo, December 18, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Broedel, Johannes and Duhr, Claude and Dulat, Falko and Tancredi, Lorenzo, December 18, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Almelid, Øyvind and Duhr, Claude and Gardi, Einan and McLeod, Andrew and White, Chris D., June 26, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Vittorio Del Duca, Claude Duhr, Robin Marzucca, Bram Verbeek, May 19, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Abreu, Samuel and Britto, Ruth and Duhr, Claude and Gardi, Einan, April 21, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Samuel Abreu and Ruth Britto and Claude Duhr and Einan Gardi, March 8, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Abreu, Samuel and Britto, Ruth and Duhr, Claude and Gardi, Einan, February 8, 2017
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Song He and Zhengwen Liu, August 15, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Song He, Zhengwen Liu and Jun-Bao Wu, July 1, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • Del Duca, Vittorio and Druc, Stefan and Drummond, James and Duhr, Claude and Dulat, Falko and Marzucca, Robin and Papathanasiou, Georgios and Verbeek, Bram, June 16, 2016
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Fanuel, Michaël and Govaerts, Jan, May 26, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Fanuel, Michaël and Govaerts, Jan and Avossevou, Gabriel Y. H. and Dossa, Anselme F., May 21, 2014
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Simone Zonetti and Jan Govaerts, February 10, 2013
    Refereed paper. Contribution to proceedings. [Full text]

  • Jan Govaerts and Simone Zonetti, December 20, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jose Beltran Jimenez, Enea Di Dio and Ruth Durrer, December 12, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Grumiller, Daniel and McNees, Robert and Zonetti, Simone, October 26, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Daddy Balondo Iyela, Jan Govaerts and M. Norbert Hounkonnou, August 10, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Michaël Fanuel and Simone Zonetti, March 22, 2012
    Refereed paper. [Abstract] [PDF] [Journal] [Dial] [Full text]

  • Zonetti, Simone and Govaerts, Jan, November 8, 2011
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Fanuel Michael, Govaerts Jan, August 25, 2011
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jan Govaerts, Simone Zonetti, February 25, 2011
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Seán Murray, Jan Govaerts, August 19, 2010
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jan Govaerts and Seán Murray, October 22, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jan Govaerts, M. Nobert Hounkonnou and Habatwa V. Mweene, August 23, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Bruno Bertrand and Jan Govaerts, August 23, 2009

  • Joseph Ben Geloun, Jan Govaerts and Frederik G. Scholtz, August 14, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jan Govaerts, Calvin Matondo Bwayi and Olivier Mattelaer, August 6, 2009
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jan Govaerts and Olivier Mattelaer, December 2, 2008
    Contribution to proceedings. [Abstract] [PDF] [Full text]

  • Laure Gouba, Jan Govaerts and M. Norbert Hounkonnou, December 2, 2008
    Contribution to proceedings. [Abstract] [PDF] [Full text]

  • Laure Gouba and Jan Govaerts, December 2, 2008
    Contribution to proceedings. [Abstract] [PDF] [Full text]

  • Joseph Ben Geloun, Jan Govaerts and M. Norbert Hounkonnou, December 2, 2008
    Contribution to proceedings. [Abstract] [PDF] [Full text]

  • Jan Govaerts, December 2, 2008
    Contribution to proceedings. [Abstract] [PDF] [Full text]

  • Jan Govaerts and M. Norbert Hounkonnou, eds., December 2, 2008
    Contribution to proceedings. [Full text]

  • Frederik G. Scholtz and Jan Govaerts, June 22, 2008
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Florian Payen, August 6, 2007
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • F. G. Scholtz, B. Chakraborty, J. Govaerts and S. Vaidya, July 31, 2007
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Hendrik B. Geyer, Laure Gouba, Jan Govaerts and Frederik G. Scholtz, June 18, 2007

  • Joseph Ben Geloun, Jan Govaerts and M. Norbert Hounkonnou, June 18, 2007

  • Jan Govaerts and Frederik G. Scholtz, June 7, 2007
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • J. Govaerts, P. D. Jarvis, S. O. Morgan and S. G. Low, May 17, 2007
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Bruno Bertrand and Jan Govaerts, May 16, 2007
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Bruno Bertrand, February 21, 2007
    Contribution to proceedings. [Abstract] [PDF]

  • J. Govaerts and D. Bertrand, August 3, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • L. Gouba, J. Govaerts and M.N. Hounkonnou, August 3, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • J. Govaerts, August 3, 2006
    Contribution to proceedings.

  • J. Ben Geloun, J. Govaerts and M.N. Hounkonnou, August 3, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • Gerard, Jean-Marc an Smith, Christopher and Trine, Stephanie, May 14, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • Joseph Ben Geloun, Jan Govaerts and M. Norbert Hounkonnou, September 8, 2006
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Joseph Ben Geloun, Jan Govaerts and M. Norbert Hounkonnou, September 8, 2006
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Jan Govaerts and Damien Bertrand, July 27, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • Laure Gouba, Jan Govaerts and M. Norbert Hounkonnou, July 27, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • Joseph Ben Geloun, Jan Govaerts and M. Norbert Hounkonnou, July 27, 2006
    Contribution to proceedings. [Abstract] [PDF]

  • Jan Govaerts, M. Norbert Hounkonnou and Alfred Z. Msezane, eds., July 27, 2006
    Contribution to proceedings. [Full text]

  • Jan Govaerts and Florian Payen, July 27, 2006
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • Bruno Bertrand and Jan Govaerts, July 6, 2006
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]

  • F. G. Scholtz, B. Chakraborty, S. Gangopadhyay, J. Govaerts, September 13, 2005
    Refereed paper. [Abstract] [PDF] [Journal] [Dial]