Controlling the Quantum World : The Science of Atoms, Molecules and Photons. Lessons Learned

Transcription

1 Controlling the Quantum World : The Science of Atoms, Molecules and Photons Lessons Learned AMO2010 A Decadal Assessment and Outlook Report on Atomic, Molecular and Optical Science (Part of Physics 2010) Philip Bucksbaum, Co-ChairChair BPA Irvine November 4 th 2006

2 : Entangled photons from parametric conversion Motivation for our Report There is an explosion of interest in AMO science: Quantum-degenerate gases High-field physics Quantum information science X-ray lasers Attosecond pulses Quantum control Nobel prizes in 97, 99, 01, and 05 A decade has passed since the last comprehensive assessments of the field and related areas the FAMOS report in 1994 and the COSE report in Scope of this study and proposal developed by CAMOS through a series of meetings, including mini-symposia on key forefront areas. CAMOS suggested a forward-looking study framed in terms of compelling questions that express in simple ways the intellectual drivers for the field. DOE and NSF agreed to fund the study as part of the Physics 2010 series. 2

3 Atom laser Quantum degenerate gases Charge to the Committee Review the field of AMO science, emphasize recent accomplishments, and identify new opportunities and compelling scientific questions.[hit the high points, don t try to be comprehensive.] Identify the impact of AMO science on other scientific fields, emerging technologies, and national needs. [Remember the Physics 2010 Context] Identify future workforce, societal and educational needs for AMO science. Make recommendations on how the US research enterprise might realize the full potential of AMO science. [Don t forget that this costs money.] Prepare an interim report for BPA and the sponsors. 3

4 Philip H. Bucksbaum, Co-chair University of Michigan/Stanford University Committee Membership: Breadth and Diversity Wolfgang Ketterle, Massachusetts Institute of Technology Robert Eisenstein, Co-chair Gordon A. Baym, University of Illinois C. Lewis Cocke, Kansas State University Eric A. Cornell, University of Colorado / JILA E. Norval Fortson, University of Washington Keith Hodgson, Stanford Synchrotron Radiation Laboratory Anthony M. Johnson, University of Maryland Baltimore County Steven Kahn, Stanford University Mark A. Kasevich, Stanford University Kate Kirby, Harvard-Smithsonian Center for Astrophysics Pierre Meystre, University of Arizona Christopher Monroe, University of Michigan Margaret M. Murnane, University of Colorado / JILA William D. Phillips, National Institute of Standards and Technology Stephen T. Pratt, Argonne National Laboratory K. Birgitta Whaley, University of California, Berkeley Consultants: Neal F. Lane, Rice University Neil Calder, SLAC 4

5 Cavity-enhanced atom-photon interactions Six Compelling Research Questions For AMO Science [Lead with Science] What is the nature of physical law? What happens at the lowest temperatures in the Universe? What happens at the highest temperatures in the Universe? Can we control the inner workings of a molecule? How will we control and exploit the nanoworld? What is the future of quantum information science? 5

6 Medical imaging via optical pumping and spin-exchange Project Timeline [Short!] Committee formed beginning of 2005 First meeting Washington DC April 4/5, 2005 Data requested from Federal agencies August, 2005 Interim Report November, 2005 Report finalized and review begun March, 2005 Briefing in Washington July 10, 2006 Report (prepublication) release July 24, 2006 Print version release Early

7 Make the timeline work: First meeting: Find out what Big Brother Wants: talks from the sponsors, agencies, OSTP, Congress Blackboard exercise to find the science boundaries and major accomplishments for our field. Divide into data gathering and draft writing subgroups, with definite length and breadth assignments, and a responsible leader Community input requested right away: Website Town meetings at APS and OSA conferences Agency data requested (grant sizes, history, demographics) Teleconferences with substance Each writing subgroup held frequent teleconferences. Leaders were responsible for turning in a draft Interim Report Like a preliminary executive summary. Discussed in excruciating minute detail by the committee. Distribute it widely, listen to feedback, tweak the message to make it more clear and powerful 7

8 Structuring the main report Structure of the main report Central chapters organized around our Science conclusions Funding and human resources in a separate chapter at the end Three tiers (see below) Re-align writing groups into chapters for a three-tier document Changes based on who can write, who has time, expertise Very tight requirements on style Chapter 1 becomes extended Exec Summary, a condensation of the doc, or Micropedia. Conclusions, Findings, and Recommendations In science prioritization, picking winners is far more important than identifying losers. Tell the government what the field needs, rather than how the agencies should do their jobs. Final push Create a gang of 4, the best writers. Meet together for a marathon week of final rewrites 8

9 Short summary of Conclusions Three conclusions praise the balance, breadth, variety, and payoffs of the AMO programs. Two conclusions tie AMO research and education to national economy and security. Three conclusions point to budget shortfalls: Science costs are rising but budgets are flat; Theory, astro, and plasma AMO in particular are inadequately funded. Two conclusions concern manpower: We need more US students to chose science careeers, and training and retaining the best foreign students is vital. 9

10 Short summary of Recommendations Improve education in the physical sciences. Support AMO across multiple disciplines and agencies. Reverse declines in 6.1 funding at DOD. Review and rebalance budgets to strenghten theory and instrumentation (2 recs). Implement incentives for US students to study physical science and take up careers in the field. Attract the best foreign students to study in the US, and encourage them to stay. 10

11 Making a big splash: Pre-publication briefing Go to Washington two weeks before release of the doc Pull out your big guns. (Nobelists and similar types on the committee have special credibility) Speak to everyone you can: NSF, DOE, DOD, NIST, NASA, OSTP, OMB, Congressional committee staffs. Press release Have one. This is not automatic for NRC reports. Write the draft yourself, and review the NRC rewrite carefully well in advance. Trust me on this one. 11

12 So, how did it go? We ve had lots of good feedback from the physics community (cheers from a friendly crowd, of course.) FYI article Mentions in The Economist, PT, Physics World, and so on. Some favorable comments from agencies amo2010 figured prominently in a recent BESAC grand challenges presentation. Affect on science policy? Too early to tell 12

13 That s the end of my presentation on lessons learned. The rest of the viewgraphs are excerpts from our Washington prerelease briefings. --Phil Bucksbaum Co-Chair, AMO

14 AMO Science and National Policy: Conclusions I Given the budget and programmatic constraints, generally the federal agencies questioned in this study have managed the research profile of their programs well in response to the opportunities in AMO science. In doing so the agencies have developed a combination of modalities (large groups; centers and facilities; and expanded singleinvestigator programs). Much of the funding increase that has taken place at DOE, NIST, and NSF has been to benefit activities at research centers. The overall balance of the modalities for support of the field has led to outstanding scientific payoffs. The breadth of AMO science and of the agencies that support it is very important to future progress in the field and has been a key factor in its success so far Since all of the agencies report that they receive many more proposals of excellent quality than they are able to fund, it is clear that AMO science remains rich with promise for outstanding future progress. AMO science will continue to make exceptional advances in science and in technology for many years to come. In view of its tremendous importance to the national well being, broadly defined that is to our nation s economic strength, health care, defense, education, and domestic security an investment program in research and education in physical science is critical and such a program will improve America s ability to capture the benefits of AMO science. 14

15 AMO Science and National Policy: Conclusions II Historically, support for basic research has been a vital component of the nation s defense strategy. Therefore, the recent decline in funding for research, particularly in basic research, at the defense-related agencies is troubling. The extremely rapid increase in technical capabilities and the associated increase in the cost of scientific instrumentation have led to very significant added pressures (over and above the usual Consumer Price Index inflationary pressures) on research group budgets. In addition, not only has the cost of instrumentation increased, but also the complexity and challenge of the science makes investigation much more expensive. This science inflator effect means that while it is now possible to imagine research that was unimaginable in the past, finding the resources to pursue that research is becoming increasingly difficult. In any scientific field where progress is extremely rapid, it is important not to lose sight of the essential role played by theoretical research. Programs at the federal agencies that support AMO theory have been and remain of critical importance. NSF plays a critical and leading role in this area, but its support of AMO theoretical physics is not nearly enough. 15

16 AMO Science and National Policy: Conclusions III AMO science is an enabling component of astrophysics and plasma physics but is not adequately supported by the funding agencies charged with responsibility for those areas. The number of American students choosing physical science as a career is dangerously low. Without remediation, this problem is likely to create an unacceptable expertise gap between the United States and other countries. Scientists and students in the United States benefit greatly from close contact with the scientists and students of other nations. Vital interactions include the training of foreign graduate students, international collaborations, exchange visits, and meetings and conferences. These interactions promote excellent science, and improve international understanding, and support the economic, educational, and national security needs of the United States. 16

17 AMO Science and National Policy: Recommendations I In view of the critical importance of a substantially increased investment program in the physical sciences to national security broadly defined (that is, in terms of economic strength, health care, defense, and domestic security), the federal government should embark on such a program that improves education in the physical sciences and mathematics at all levels and significantly strengthens the research effort. AMO science will continue to make exceptional contributions to many areas of science and technology. The federal government should therefore support programs in AMO science across disciplinary boundaries and through a multiplicity of agencies. Basic research is a vital component of the nation s defense strategy. The Department of Defense, therefore, should reverse recent declines in support for 6.1 research at its agencies. 17

18 AMO Science and National Policy: Recommendations II The extremely rapid increase in the technical capability of scientific instrumentation and its cost has significantly increased pressures (over and above the usual Consumer Price Index inflationary pressures) on research budgets. The federal government should recognize this fact and rebudget accordingly. The funding agencies should reexamine their portfolios in theoretical AMO science to ensure that this effort is at proper strength, in both workforce numbers and in funding level, given the critical role of theoretical research in AMO science. The federal government should implement incentives to encourage more American students, and especially women and minorities, to study the physical sciences and take up careers in the field. It should continue to attract foreign students to study physical sciences and strongly encourage them to continue their scientific careers in the United States. 18

19 A Decade of Excitement, Opportunity, and Responsibility New ideas and new tools promise a spectacular decade of discovery and innovation in AMO science. Six grand challenges described in AMO 2010 are a bridge between fundamental science and 21 st century national needs. The exciting opportunities in AMO science are attracting a new generation of young researchers, providing an opportunity for our nation to invest in our young people and in our future. Laser fusion Ultracold atomic gases 19

20 Atomic Clocks From military navigation in trackless deserts to unlocking the most fundamental secrets of Nature, atomic clocks are central. Atomic clock in a 1 mm 3 volume U.S. primary frequency standard: Cs atomic fountain clock, accurate to 5 X or 1 second in 60 million years Optical frequency standards (Nobel 05) are the future of atomic clocks 20

21 Atomic Clocks From military navigation in trackless deserts to unlocking the most fundamental secrets of Nature, atomic clocks are central. Recent results: Stability (Hg + /Al + ): σ y (τ = 8 hr) 4x10-17 Systematic uncertainty: f/f 0 (Hg + ) 3x10-17 f/f 0 (Al + ) 3x10-17 Atomic clock in a 1 mm 3 volume US primary frequency standard: Cs atomic fountain clock, accurate to 5 X or 1 second in 60 million years Optical frequency standards (Nobel 05) are the future of atomic clocks This uncertainty is equivalent to the Einstein gravitational red shift difference for ONE FOOT of altitude change. 21

22 Quantum Information: A New Science Quantum Mechanics 20th Century semiconductor devices Information Science 21st Century Quantum Information Science 22

23 Single Atoms, Ions, and Photons Are Qubits Quantum cryptography Quantum computing: code breaking physics simulation Better measurement: the quantum limit 23

24 A New State of Matter Vortex formation is a hallmark of superfluidity in solid and liquid materials like superconducting metals and superfluid helium. Supercold quantum gases give us a new set of tools for exploring these and other important problems in materials. 24

25 Extreme Light X-ray lasers Megajoule lasers LCLS, planned to start operations in 2009, showing the underground labs and the path of the x-ray FEL beam. NIF Target Chamber 25

26 Current and Future x-ray Sources Key: NSLS: National Synchrotron Light Source at Brookhaven ALS: Advanced Light Source at LBNL APS: Advanced Photon Source at Argonne ESRF: European Synchrotron Research Facility SPPS: Sub-Picosecond Pulse Source SLAC LCLS: The Linac Coherent Light Source at SLAC 26

27 Laser Power Beyond A Petawatt 27

28 Single Molecule Imaging Via Diffraction by an X-ray Laser. 28

29 Controlling the Nanoworld Nanolocalized light fields to control atomic motion Single photons on demand from quantum dots Nanostructured optical fibers 29

30 Controlling the Inner Workings of a Molecule tools for control Total field control -Ultrafast studies (1999 Nobel) -Carrier envelope phase control (2005 Nobel) -Pulse shapers Learning feedback 30

31 Controlling the Inner Workings of a Molecule A snapshot image of a molecule obtained from field ionization and electron-molecule recollision 31