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NSF Theoretical Physics (PD 07 1284) - Frequently Asked Questions

What is this NSF grant opportunity?

This is the National Science Foundation (NSF) Theoretical Physics grant opportunity (Funding Opportunity Number PD 07 1284) under CFDA 47.049 (Mathematical and Physical Sciences). It supports theoretical physics research and related activities that advance qualitative and quantitative understanding of fundamental physical systems across a wide range of scales.

What is the main goal of the program?

The program aims to fund work that develops new theoretical, computational, and (in some cases) experiment-interpreting approaches that probe the laws of physics and explain how physical systems behave, from elementary constituents of matter to the largest structures in the universe.

What kinds of research activities are typically supported?

Typical supported work includes formulating testable, quantitative hypotheses; analyzing consequences using analytic methods and computation; and, when relevant, connecting theoretical results to experimental findings.

Does the program support conferences or community activities?

Yes. In addition to core research projects, the program supports conferences and broader community activities that help push the theoretical physics field forward, including workshops, visitor programs, and research centers.

How is the program organized within NSF?

The solicitation describes multiple topic areas, each managed by a dedicated Program Director within the NSF Division of Physics (PHY). The structure is designed to support both breadth across theoretical physics and specialization within key subfields.

Which topic areas are included in this Theoretical Physics opportunity?

Funding is described as available for research and meetings spanning: elementary particle physics, nuclear physics, atomic/molecular/optical (AMO) physics, astrophysics and cosmology, gravitational physics, and mathematical physics.

Are interdisciplinary projects encouraged or supported?

Yes. The solicitation notes that a substantial portion of awards are interdisciplinary, reflecting how modern theoretical physics often crosses traditional boundaries (for example, particle theory methods applied to cosmology, or mathematical tools from quantum field theory influencing other areas).

What does the program support within Atomic, Molecular, and Optical (AMO) Physics?

AMO support includes theoretical and computational work on atomic structure; the structure of small molecules; electron and atomic collision processes; and light-matter interactions such as photoionization and photodetachment. It also highlights time-dependent interactions in atoms and small molecules, quantum optics, ultracold Bose and Fermi gases, and connections to quantum information science.

Is there a scope boundary for AMO proposals involving larger molecules or condensed matter?

Yes. Proposals aimed primarily at developing theory for larger molecules or condensed matter systems are generally expected to be routed to NSF programs in Chemistry or Materials Research, which are described as better aligned with those application domains.

What does the program support within Nuclear Theory?

The Nuclear Theory area covers theory of nuclear structure and nuclear reactions; hadronic physics in few-nucleon and nuclear environments; and underlying quark and gluon dynamics described by quantum chromodynamics (QCD). It includes both fundamental theoretical advances and model building tied to major experimental programs and facilities, explicitly including RHIC and Jefferson Laboratory. It also includes nuclear theory relevant to astrophysical phenomena.

Does Nuclear Theory include work connected to astrophysics?

Yes. The solicitation explicitly includes nuclear theory work relevant to astrophysical phenomena (for example, nuclear processes influencing stellar evolution or compact objects).

What does the program support within Elementary Particle Theory?

The Elementary Particle Theory area supports a wide toolkit for understanding particle interactions across energy scales, including string theory, quantum field theory, lattice field theory, effective field theories, and phenomenology. It supports formal developments in string theory and string-inspired model building, as well as theory connected to present and future experimental searches.

What experimental connections are mentioned for Elementary Particle Theory?

The solicitation points to theory connected with predictions relevant to the Large Hadron Collider (LHC) and to cosmic-ray and neutrino detectors. It also emphasizes lattice gauge theory and high-precision QCD simulations as essential for interpreting collider data and other experimental results.

What examples of Elementary Particle Theory topics are named?

Examples listed include supersymmetric model building, grand unified theories, extra dimensions, string-inspired phenomenology, and high-order precision calculations within the Standard Model, along with lattice gauge theory and high-precision QCD simulations.

If a proposal is primarily mathematical but related to particle theory, where might it fit best?

The solicitation advises that proposals in particle theory that are primarily mathematical in nature may fit better under Mathematical Physics.

How are Mathematical Physics proposals reviewed?

Mathematical Physics proposals are reviewed by a dedicated Mathematical Physics Panel composed of both physicists and mathematicians, reflecting the field's hybrid nature.

What topics fall under Mathematical Physics in this opportunity?

Covered topics include foundational quantum theory, quantum field theory, and string theory, as well as nonlinear dynamics, fluid mechanics, turbulence, chaos and complexity, and statistical physics.

What is a key evaluation point for Mathematical Physics proposals?

A key evaluation point is the centrality and significance of the mathematics, together with the importance of the physics questions being addressed.

Are there hints about what may be less competitive in Mathematical Physics?

Yes. The solicitation notes that projects where the mathematics is mainly standard or primarily computational (even if technically sophisticated) may be more competitive in other NSF programs, indicating Mathematical Physics is intended for work where new mathematical ideas are integral.

What does the program support within Astrophysics and Cosmology Theory?

This area focuses on theoretical particle astrophysics and big bang cosmology, including more speculative cosmological ideas inspired by string theory and brane-world scenarios. It highlights the "quarks to cosmos" connection and the interpretation of implications of cosmic microwave background fluctuation spectra.

What example topics are mentioned within Astrophysics and Cosmology Theory?

Examples described include dark matter, dark energy, high-energy cosmic rays, and other exotic cosmological frameworks, commonly aligning with researchers trained in particle theory.

If a cosmology/astrophysics proposal is outside particle-theory-driven areas, is there another NSF home?

Yes. The solicitation clarifies that cosmology and astrophysics outside these particle-theory-driven areas may be supported instead through the Astronomy Program within NSF's Mathematical and Physical Sciences directorate.

What does the program support within Gravitational Theory?

Gravitational Theory funding includes research in classical and quantum gravity, including simulations of gravitational-wave sources and other strong-field gravity phenomena, as well as work at the interface of gravitation and quantum mechanics.

How does Theoretical Plasma Physics fit into this solicitation?

The solicitation mentions Theoretical Plasma Physics but directs applicants to a separate Plasma Physics Program description for details, indicating plasma theory is handled through a different program pathway even if there is intellectual overlap.

Does the opportunity support visitor programs, workshops, or research centers?

Yes. The opportunity explicitly supports infrastructure and community-building activities such as short- and long-term visitor programs, workshops, and research centers that bring in external scientists from universities, national laboratories, and industry, and that involve graduate students and postdoctoral fellows.

Who can apply (eligibility)?

Eligibility is described as unrestricted (open to any type of entity), subject to any clarifications in NSF's full guidance.

Is cost sharing required?

No. The posting states there is no cost-sharing requirement.

Is this opportunity on an annual cycle?

The posting history referenced target dates centered on late September (including September 30, 2009, and then the last Wednesday in September annually thereafter, with a cited closing date of September 29, 2010). This indicates a recurring annual cycle at the time of the announcement.

Should applicants rely on the dates in the posting history for current deadlines?

No. The solicitation text indicates applicants would need to confirm current deadlines and funding levels in the most recent NSF materials.

What identifying numbers are provided for the opportunity?

The opportunity is identified as NSF Theoretical Physics with Funding Opportunity Number PD 07 1284 and CFDA 47.049 (Mathematical and Physical Sciences).

Does the program support work that interprets experiments?

Yes. The solicitation describes support for approaches that are sometimes experiment-interpreting, and it also emphasizes connecting theory to experimental results when relevant.

Is computation explicitly included as part of supported approaches?

Yes. The opportunity emphasizes theoretical and computational approaches, including analytic methods and computation to analyze hypotheses and consequences, and it specifically highlights high-precision simulations (for example in QCD) in relevant areas.