GPhyS, GREX, Philippe Tourrenc - Bienvenu sur le Site du GPhys

Prehistory of GREX
• More than 25 years ago, GREX had an ancestor
• Informal meetings triggered by Philippe Tourrenc French scientists
detection of GW
• Meetings in ENS or IHP with Ch.Bordé, C.Cohen-Tannoudji, T.Damour, …
Experimentalists
Mathematicians
Thanks to that initiative and to those people, Virgo has been supported by CNRS
and exists today
This “GREX” community meets regularly and is growing up every day .
GREX = Gravitation Expérimentale
1
C.N.Man - Colloque Kick-off, les Houches, 20-22/10/09

Philippe Tourrenc
1942-2007
Marie-Christine Angonin
Alain Brillet
Nary Man
Serge Reynaud
Jean-Yves Vinet
Peter Wolf…

Some
SomeSome
Some articles
articles articles
articles
Matter waves from a relativistic point of view :
[1976] B. Linet et Ph. Tourrenc: « Linet-Tourrenc Formula »
[1994] Ch.J. Bordé, A. Karasievicz, Ph. Tourrenc: including spin
Applications:
[1999] P. Wolf et Ph. Tourrenc: systematics effects in atomic gravimeter
[2004] Ph. Tourrenc, M-C. Angonin, X. Ovido: gravitational gradients in HYPER
[2006] P. Delva, M-C. Angonin, Ph. Tourrenc: gravitational wave detection with
matter waves
[2007] SAGAS collaboration, Ph. Tourrenc: unfinished work…

Linet
LinetLinet
Linet-
--
-Tourrenc
TourrencTourrenc
Tourrenc Formula
Formula Formula
Formula (1976)
(1976)(1976)
(1976)
B. Linet et Ph. Tourrenc, Can. J. Phys. 54, 1129
•simple, with few clear hypothesis
• All about atom interferometry :
h00 →acceleration, PPN tests
h0i →rotation, Lense-Thirring, geodetic precession, PPN tests
hij →Gravitational waves, PPN tests
)(
2
1
)(
01
1
0
λ
µν
νµλ
ϕξξϕ xduhx
u
u
+= ∫

Systematics
SystematicsSystematics
Systematics effects
effectseffects
effects in
in in
in atomic
atomicatomic
atomic gravimeters
gravimetersgravimeters
gravimeters (1998)
(1998)(1998)
(1998)
P. Wolf and Ph. Tourrenc, Phys. Lett. A251, 241
k
m
kT
kgTvT
mTkg
vgTkTgTgk ∆−∆−++−+−=∆ hh 3 )(2
2
'
)('
0
32
0
12
7
32
2
ϕ
• applications to experiments (SYRTE, Stanford, …)
• new terms
• Confirmed later by Stanford team
• more general formulation : Ch.J. Bordé, J. Fils, C. Antoine… (2002/2003)