Transcript Binetruy_Pierre - UCLA Physics & Astronomy

European roadmap for fundamental physics in space
conducted by FPAG
P. Binétruy, APC, Paris
chair of FPAG
From quantum to cosmos, Airlie Center, 07 July 2008
What is FPAG?
Fundamental Physics Advisory Group
of the Science Program of ESA
The Science Program at ESA
D
CH
…
Directorate of
Science and
Robotic Exploration
Scientific F
Program
Committee A
FPAG
Astronomy
Working
Group
Solar
System
Working
Group
Advisory structure
I
Space Science
Advisory Committee
E
NL
GB
Traditional role of FPAG (10 members)
• follow missions of the Science Program
(LISAPathfinder, LISA, Microscope)
• follow R&D effort and advise on it
• provide expertise in the case of new calls for missions
• provide expertise for programs outside the Science
Programme
(e.g. European LIfe and Physical Science: ACES-Pharao)
• conduct roadmap exercise whenever needed
1st call of the Cosmic Vision Program (Fall 2007)
12 proposals for fundamental physics + a few shared w/ astronomy
incl. SAGAS (M.C. Angonin), Galileo Galilei (A. Nobili), EUSO (Y. Takahashi)
None was selected for various reasons:
• lack of technical readiness as judged by ESA technical division
• narrowness of scientific interest
• difficulties connected with international collaboration
N.B. LISA was preselected as an L-mission in this call
As a consequence, ESA put FPAG on hold and asked its
members to propose a new role to be discussed in a SPC
Workshop held last June in Aix-en-Provence
Present FPAG members:
Pierre Binétruy*
Philippe Bouyer*
Gijs Nelemans
Wolfgang Schleich*
Alicia Sintes Olives
Bill Weber*
What is fundamental physics?
• Tests of fundamental laws and principles e.g. equivalence principle,
constancy of constants, inverse square gravitational law
• Detection and study of gravitational waves
• Quantum mechanics in a clean environment
• Cold atom physics, new frequency standards and quantum technologies
• Precision research in cosmology : identifying the nature of dark energy
and dark matter
• Space-based efforts in astroparticle: high energy cosmic particles, antimatter,…
What is fundamental physics?
MICROSCOPE
ACES
• Tests of fundamental
laws and principles e.g.
equivalence principle,
constancy of constants, gravitational of inverse square law
• Detection and LISAPathfinder
study of gravitational waves
LISA
• Quantum mechanics in a clean environment
T2L2
ELIPS
• Cold atom physics, new frequency standards and quantum technologies
• Precision research in cosmology : identifying theEUCLID
nature of dark energy
and dark matter
EUSOhigh energy cosmic particles, antimatter,…
• Space-based efforts in astroparticle:
A program strongly connected with what can be achieved on ground…
Zarm drop tower
CERN
Auger
… representing large communities not necessarily familiar with space
New communities
Theory
groups
Groups with technological experience
Labs with space
experience
Identify the key players :
Industrial
partners
These communities have to learn how to use (or not to use) space
They sometimes have to learn how to work on a European scale
 Interaction needed between the space community represented
by ESA and these new communities
New technologies
Identify key technologies for fundamental physics in space
Set up a coordinated program to reach the required
readiness level for those technologies
Lessons from the past: microthrusters
Building the future: FPAG recommendations for ESA
Technical Development Plan (2008-2011)
• breadboard of a trapped ion clock
• breadboard of an atom interferometer
Why space?
Advantages: low Newtonian noise, free fall, long distances,
large potential differences
Drawbacks: time and cost
Assessing the real need for space requires a good knowledge
of the possibilities on ground (ten years from now)
e.g. Auger vs EUSO
dark energy
clocks on ground vs clocks in space
Exception: LISA is the only way to reach its frequency domain
Need enough expertise to make this assessment
The role of the « new » FPAG, as we see it :
• Build a roadmap with the community (2008-2009)
• Identify the key technologies (the show stoppers) and
the developments associated
• Follow the missions of the Science program, including
the more technological developments
• Be informed on the other ESA programmes and on the
national programmes and give opinions on how they fit
into the general scheme
The « Fundamental physics in space » European roadmap exercise
(coordinated by FPAG)
Why?
Necessary to clarify the need for space and focus the efforts
for putting new technologies into space.
Has a important pedagogical role if the community is involved.
Roadmap should clearly address the issue of the next Cosmic Vision call
When?
Second semester of 2008-First semester of 2009
Well in advance of the next Cosmic Vision call
In line with prospective effort of some national communities (D,F..)
How?
FPAG produces a paper giving the general lines of this prospective effort(08/09)
A call for white papers is issued along these lines (08/10-12)
FPAG studies the answers to the call and integrates other roadmap exercises
to produce a first draft of the radmap(09/01-04)
A workshop is organized to discuss this document and related issues with the
community (09/04-06)
Final version of the roadmap (summer 09)
Conclusions (for the SPC delegates)
Ambitious program building on the lead of Europe in this field
Allows to enrich the space community
Very high visibility both on the science (of a different kind
from astronomy or solar system missions) and on the technology
arXiv:0711.0150 [gr-qc]
Space-based research in fundamental physics and quantum technologies
S.G. Turyshev et al., CalTech, UCLA, Stanford, Harvard-Smithsonian,
University of Colorado, Lawrence Berkeley Lab, University of Maryland
« We emphasize that ESA’s FPAG is a good example of how to engage
the fundamental physics community in space-related research activities,
enrich and deepen the space enterprise, and also broaden ESA’s advocacy
base. NASA would benefit from access to a similar group of science
advisors. »