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Created page with "'''Home * People * Jean-Philippe Karr''' FILE:JeanPhilippeKarr.jpg|border|right|thumb|link=http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480| Jean-P..."
'''[[Main Page|Home]] * [[People]] * Jean-Philippe Karr'''
[[FILE:JeanPhilippeKarr.jpg|border|right|thumb|link=http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480| Jean-Philippe Karr <ref>[http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480 Jean-Philippe KARR | Fédération Française des Échecs]</ref> ]]
'''Jean-Philippe Karr''',<br/>
a French physicist, associate professor at [https://en.wikipedia.org/wiki/University_of_%C3%89vry_Val_d%27Essonne University of Évry Val d'Essonne] and member of the ''Trapped Ions Group'', [https://en.wikipedia.org/wiki/Kastler%E2%80%93Brossel_Laboratory Kastler–Brossel Laboratory] <ref>[http://www.lkb.upmc.fr/iontrap/ Trapped Ions Metrology]</ref>.
His research activities concern [https://en.wikipedia.org/wiki/Accuracy_and_precision precision measurements] with [https://en.wikipedia.org/wiki/Ultracold_atom trapped ultra-cold ions] to carry out tests of fundamental theories and to improve knowledge of the [https://en.wikipedia.org/wiki/Physical_constant constants of physics].
The technique of [https://en.wikipedia.org/wiki/Sympathetic_cooling sympathetic cooling] via the [https://en.wikipedia.org/wiki/Coulomb%27s_law Coulomb interaction] with [https://en.wikipedia.org/wiki/Ion ions] [https://en.wikipedia.org/wiki/Laser_cooling cooled by laser] plays a central role in these projects.
He also conducts high-precision calculations on [https://en.wikipedia.org/wiki/Three-body_problem three-body] [https://en.wikipedia.org/wiki/Quantum_system quantum systems] in connection with [https://en.wikipedia.org/wiki/Polyatomic_ion molecular ion] [https://en.wikipedia.org/wiki/Spectroscopy spectroscopy] experiments <ref>[http://www.iufrance.fr/les-membres-de-liuf/membre/743-jean-philippe-karr.html Les membres - Institut Universitaire de France]</ref>.
Jean-Philippe Karr is [https://en.wikipedia.org/wiki/FIDE_titles#International_Master_.28IM.29 Chess International Master] <ref>[http://ratings.fide.com/card.phtml?event=612227 Karr, Jean-Philippe FIDE Chess Profile]</ref>,
and along with [[François Karr]] co-author of the chess engine [[BugChess FR#BugChess2|BugChess2]] <ref>[https://web.archive.org/web/20120104192417/http://wbec-ridderkerk.nl/html/details1/BugChess2.html BugChess2] from [[WBEC|WBEC Ridderkerk]] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine])</ref>.
=Selected Publications=
<ref>[https://arxiv.org/search/physics?query=Karr%2C++Jean-Philippe&searchtype=author&abstracts=show&order=-announced_date_first&size=50 Search Karr, Jean-Philippe | arXiv e-print repository]</ref>
==2005 ...==
* [https://en.wikipedia.org/wiki/Bernhard_W._Roth Bernhard Roth], [https://scholar.google.nl/citations?user=hKApNbYAAAAJ&hl=en Jeroen Koelemeij], [https://scholar.google.de/citations?user=5uZ1eBAAAAAJ&hl=en Stephan Schiller], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [[Jean-Philippe Karr]], [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [https://www.researchgate.net/profile/Dimitar_Bakalov Dimitar Bakalov] ('''2006'''). ''Precision Spectroscopy of Molecular Hydrogen Ions: Towards Frequency Metrology of Particle Masses''. [https://arxiv.org/abs/physics/0612106 arXiv:physics/0612106]
* [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [[Jean-Philippe Karr]] ('''2008'''). ''Relativistic corrections of mα^6(m/M) order to the hyperfine structure of the H_2^+ molecular ion''. [https://arxiv.org/abs/0811.0516 arXiv:0811.0516]
==2010 ...==
* [[Jean-Philippe Karr]], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico] ('''2012'''). ''Why three-body physics do not solve the proton radius puzzle''. [https://arxiv.org/abs/1205.0633 arXiv:1205.0633]
* [[Jean-Philippe Karr]], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico] ('''2012'''). ''Analytical matrix elements of the Uehling potential in three-body systems, and applications to exotic molecules''. [https://arxiv.org/abs/1211.7234 arXiv:1211.7234]
* [[Jean-Philippe Karr]], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov] ('''2014'''). ''One-loop vacuum polarization at mα7 order for the two center problem''. [https://arxiv.org/abs/1411.1894 arXiv:1411.1894]
* [[Jean-Philippe Karr]] ('''2014'''). ''H2+ and HD+: candidates for a molecular clock''. [https://arxiv.org/abs/1403.6925 arXiv:1403.6925]
==2015 ...==
* [[Jean-Philippe Karr]] ('''2015'''). ''Resonances in two-electron atoms below the critical charge''. [https://arxiv.org/abs/1507.08033 arXiv:1507.08033]
* [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [https://scholar.google.nl/citations?user=hKApNbYAAAAJ&hl=en Jeroen Koelemeij], [[Jean-Philippe Karr]] ('''2015'''). ''Test of the theoretical hyperfine structure of the molecular hydrogen ion at the 1-ppm level''. [https://arxiv.org/abs/1510.05206 arXiv:1510.05206]
* [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [[Jean-Philippe Karr]] ('''2017'''). ''Fundamental transitions and ionization energies of the hydrogen molecular ions at the few ppt level''. [https://arxiv.org/abs/1703.07972 arXiv:1703.07972]
* [[Jean-Philippe Karr]] ('''2018'''). ''Stark quenching of rovibrational states of H2+ due to motion in a magnetic field''. [https://arxiv.org/abs/1810.04884 arXiv:1810.04884]
=External Links=
* [http://www.iufrance.fr/les-membres-de-liuf/membre/743-jean-philippe-karr.html Les membres - Institut Universitaire de France]
* [http://www.lkb.upmc.fr/iontrap/jean-philippe-karr/ ean-Philippe Karr | Trapped Ions Metrology]
* [http://ratings.fide.com/card.phtml?event=612227 Karr, Jean-Philippe FIDE Chess Profile]
* [http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480 Jean-Philippe KARR | Fédération Française des Échecs]
* [https://www.chessgames.com/player/jean-philippe_karr.html The chess games of Jean-Philippe Karr] from [http://www.chessgames.com/index.html chessgames.com]
* [https://www.365chess.com/players/Jean_Philippe_Karr Jean Philippe Karr chess games - 365Chess.com]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Player|Karr]]
[[Category:Chess Programmer|Karr]]
[[FILE:JeanPhilippeKarr.jpg|border|right|thumb|link=http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480| Jean-Philippe Karr <ref>[http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480 Jean-Philippe KARR | Fédération Française des Échecs]</ref> ]]
'''Jean-Philippe Karr''',<br/>
a French physicist, associate professor at [https://en.wikipedia.org/wiki/University_of_%C3%89vry_Val_d%27Essonne University of Évry Val d'Essonne] and member of the ''Trapped Ions Group'', [https://en.wikipedia.org/wiki/Kastler%E2%80%93Brossel_Laboratory Kastler–Brossel Laboratory] <ref>[http://www.lkb.upmc.fr/iontrap/ Trapped Ions Metrology]</ref>.
His research activities concern [https://en.wikipedia.org/wiki/Accuracy_and_precision precision measurements] with [https://en.wikipedia.org/wiki/Ultracold_atom trapped ultra-cold ions] to carry out tests of fundamental theories and to improve knowledge of the [https://en.wikipedia.org/wiki/Physical_constant constants of physics].
The technique of [https://en.wikipedia.org/wiki/Sympathetic_cooling sympathetic cooling] via the [https://en.wikipedia.org/wiki/Coulomb%27s_law Coulomb interaction] with [https://en.wikipedia.org/wiki/Ion ions] [https://en.wikipedia.org/wiki/Laser_cooling cooled by laser] plays a central role in these projects.
He also conducts high-precision calculations on [https://en.wikipedia.org/wiki/Three-body_problem three-body] [https://en.wikipedia.org/wiki/Quantum_system quantum systems] in connection with [https://en.wikipedia.org/wiki/Polyatomic_ion molecular ion] [https://en.wikipedia.org/wiki/Spectroscopy spectroscopy] experiments <ref>[http://www.iufrance.fr/les-membres-de-liuf/membre/743-jean-philippe-karr.html Les membres - Institut Universitaire de France]</ref>.
Jean-Philippe Karr is [https://en.wikipedia.org/wiki/FIDE_titles#International_Master_.28IM.29 Chess International Master] <ref>[http://ratings.fide.com/card.phtml?event=612227 Karr, Jean-Philippe FIDE Chess Profile]</ref>,
and along with [[François Karr]] co-author of the chess engine [[BugChess FR#BugChess2|BugChess2]] <ref>[https://web.archive.org/web/20120104192417/http://wbec-ridderkerk.nl/html/details1/BugChess2.html BugChess2] from [[WBEC|WBEC Ridderkerk]] ([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine])</ref>.
=Selected Publications=
<ref>[https://arxiv.org/search/physics?query=Karr%2C++Jean-Philippe&searchtype=author&abstracts=show&order=-announced_date_first&size=50 Search Karr, Jean-Philippe | arXiv e-print repository]</ref>
==2005 ...==
* [https://en.wikipedia.org/wiki/Bernhard_W._Roth Bernhard Roth], [https://scholar.google.nl/citations?user=hKApNbYAAAAJ&hl=en Jeroen Koelemeij], [https://scholar.google.de/citations?user=5uZ1eBAAAAAJ&hl=en Stephan Schiller], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [[Jean-Philippe Karr]], [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [https://www.researchgate.net/profile/Dimitar_Bakalov Dimitar Bakalov] ('''2006'''). ''Precision Spectroscopy of Molecular Hydrogen Ions: Towards Frequency Metrology of Particle Masses''. [https://arxiv.org/abs/physics/0612106 arXiv:physics/0612106]
* [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [[Jean-Philippe Karr]] ('''2008'''). ''Relativistic corrections of mα^6(m/M) order to the hyperfine structure of the H_2^+ molecular ion''. [https://arxiv.org/abs/0811.0516 arXiv:0811.0516]
==2010 ...==
* [[Jean-Philippe Karr]], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico] ('''2012'''). ''Why three-body physics do not solve the proton radius puzzle''. [https://arxiv.org/abs/1205.0633 arXiv:1205.0633]
* [[Jean-Philippe Karr]], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico] ('''2012'''). ''Analytical matrix elements of the Uehling potential in three-body systems, and applications to exotic molecules''. [https://arxiv.org/abs/1211.7234 arXiv:1211.7234]
* [[Jean-Philippe Karr]], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov] ('''2014'''). ''One-loop vacuum polarization at mα7 order for the two center problem''. [https://arxiv.org/abs/1411.1894 arXiv:1411.1894]
* [[Jean-Philippe Karr]] ('''2014'''). ''H2+ and HD+: candidates for a molecular clock''. [https://arxiv.org/abs/1403.6925 arXiv:1403.6925]
==2015 ...==
* [[Jean-Philippe Karr]] ('''2015'''). ''Resonances in two-electron atoms below the critical charge''. [https://arxiv.org/abs/1507.08033 arXiv:1507.08033]
* [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [https://scholar.google.nl/citations?user=hKApNbYAAAAJ&hl=en Jeroen Koelemeij], [[Jean-Philippe Karr]] ('''2015'''). ''Test of the theoretical hyperfine structure of the molecular hydrogen ion at the 1-ppm level''. [https://arxiv.org/abs/1510.05206 arXiv:1510.05206]
* [https://scholar.google.com/citations?user=wIULWJAAAAAJ&hl=en Vladimir Korobov], [http://www.lkb.upmc.fr/iontrap/laurent-hilico/ Laurent Hilico], [[Jean-Philippe Karr]] ('''2017'''). ''Fundamental transitions and ionization energies of the hydrogen molecular ions at the few ppt level''. [https://arxiv.org/abs/1703.07972 arXiv:1703.07972]
* [[Jean-Philippe Karr]] ('''2018'''). ''Stark quenching of rovibrational states of H2+ due to motion in a magnetic field''. [https://arxiv.org/abs/1810.04884 arXiv:1810.04884]
=External Links=
* [http://www.iufrance.fr/les-membres-de-liuf/membre/743-jean-philippe-karr.html Les membres - Institut Universitaire de France]
* [http://www.lkb.upmc.fr/iontrap/jean-philippe-karr/ ean-Philippe Karr | Trapped Ions Metrology]
* [http://ratings.fide.com/card.phtml?event=612227 Karr, Jean-Philippe FIDE Chess Profile]
* [http://www.echecs.asso.fr/FichehautNiveau.aspx?Ref=4480 Jean-Philippe KARR | Fédération Française des Échecs]
* [https://www.chessgames.com/player/jean-philippe_karr.html The chess games of Jean-Philippe Karr] from [http://www.chessgames.com/index.html chessgames.com]
* [https://www.365chess.com/players/Jean_Philippe_Karr Jean Philippe Karr chess games - 365Chess.com]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Player|Karr]]
[[Category:Chess Programmer|Karr]]
