Austin Reid
A5031169560- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Quantum, superfluid, helium dynamics
- Advanced Materials and Mechanics
- Nuclear Physics and Applications
- Cellular Mechanics and Interactions
- Advanced Sensor and Energy Harvesting Materials
- Structural Analysis and Optimization
- Cellular transport and secretion
- Cold Atom Physics and Bose-Einstein Condensates
- Computational Physics and Python Applications
- Radiation Detection and Scintillator Technologies
- Superconducting Materials and Applications
- Advanced Frequency and Time Standards
- Distributed and Parallel Computing Systems
- Magnetic confinement fusion research
- Computational Geometry and Mesh Generation
- Astrophysics and Cosmic Phenomena
- Solar and Space Plasma Dynamics
- Dynamics and Control of Mechanical Systems
- Force Microscopy Techniques and Applications
- Advanced NMR Techniques and Applications
- Advanced Memory and Neural Computing
- Atmospheric Ozone and Climate
- Spacecraft Design and Technology
Indiana University Bloomington
2019-2024
Tennessee Technological University
2023
North Carolina State University
2012-2019
Triangle Universities Nuclear Laboratory
2019
Sorbonne Université
2016
Université Paris Cité
2016
Centre National de la Recherche Scientifique
2016
Origami offers the possibility for new metamaterials whose overall mechanical properties can be programed by acting locally on each crease. Starting from a thin plate and having knowledge about of material folding procedure, one would like to determine shape taken structure at rest its response. In this article, we introduce vector deformation field imprinted network creases that allows us express geometrical constraints rigid origami structures in simple systematic way. This formalism is...
While memory effects emerge from systems of wildly varying lengthscales and timescales, the reduction a complex system with many interacting elements into one simple enough to be understood without also losing behavior continues challenge. Here, we investigate how bistable cylindrical origamis provide such via tunably interactive behaviors. We base our investigation on folded sheets Kresling patterns that function as two-state units. By linking several units, each selected activation energy,...
This analytical and experimental study should be useful in designing deployable origami bellows for a variety of applications. The authors present unified geometrical description several classes identify parameters that control their properties. In addition, they describe construction physical models measurements mechanical responses.
A cryogenic apparatus is described that enables a new experiment, nEDM@SNS, with major improvement in sensitivity compared to the existing limit search for neutron Electric Dipole Moment (EDM). This uses superfluid 4He produce high density of Ultra-Cold Neutrons (UCN) which are contained suitably coated pair measurement cells. The be operated at Spallation Neutron Source Oak Ridge National Laboratory, polarized 3He from an Atomic Beam injected into and transported cells where it serves as...
Static electric dipole moments of nondegenerate systems probe mass scales for physics beyond the Standard Model well those reached directly at high energy colliders. Discrimination between different models, however, requires complementary searches in atomic-molecular-and-optical, nuclear and particle physics. In this report, we discuss current status prospects near future a compelling suite such experiments, along with developments needed encompassing theoretical framework.
Abstract Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized 3 He. In connection with an experiment to search the electric dipole moment of neutron (nEDM) we have built MEOP based He polarization and injection system prepare 80 % at room temperature which will be injected into ∼ 400 mK measurement cell filled superfluid 4 We describe system, designed allow final concentrations 10 -8 –10 -10 80% in cell. Only ≈ 0.72% loss due gradients expected during
The Axion Resonant Interaction Detection Experiment (ARIADNE) is a nuclear-magnetic-resonance-based experiment that will search for novel axion-induced spin-dependent interactions between an unpolarized source mass rotor and spin-polarized $^{3}\mathrm{He}$ nuclei placed nearby. To detect feeble axion-mediated signal at the subattotesla level, relies on ultralow magnetic background noise. We measure characterize field from prototype tungsten rotor. show dominantly caused by few discrete...
Various theories beyond the Standard Model predict new particles with masses in sub-eV range very weak couplings to ordinary matter. A P-odd and T-odd interaction between polarized unpolarized nucleons proportional s⃗⋅r̂ is one such possibility, where r⃗=rr̂ spatial vector connecting nucleons, s⃗ spin of nucleon. Such an involving a scalar coupling gsN at vertex pseudoscalar gpn nucleon can be induced by exchange spin-0 bosons. We describe technique search for interactions this form present...
Many theories beyond the Standard Model postulate short-range modifications to gravity which produce deviations of Newton's gravitational potential from a strict $1/r$ dependence. It is common analyze experiments searching for these using form $V^{\prime}(r)=-\frac{GMm}{r} [1+\alpha \exp{(-r/\lambda)}]$. The best present constraints on $\alpha$ $\lambda <100$\,nm come neutron scattering and often employ comparisons different measurements coherent amplitudes $b$. We internal consistency...
Abstract The QCD axion is a particle postulated to exist since the 1970s explain strong-CP problem in physics. It could also account for all of observed dark matter Universe. resonant interaction detection experiment (ARIADNE) intends detect by sensing fictitious ‘magnetic field’ created its coupling spin. Short-range axion-mediated interactions can occur between sample laser-polarized 3 He nuclear spins and an unpolarized source-mass sprocket. must be sensitive magnetic fields below 10 −19...
Novel experimental techniques are required to make the next big leap in neutron electric dipole moment sensitivity, both terms of statistics and systematic error control. The nEDM experiment at Spallation Neutron Source (nEDM@SNS) will implement scheme Golub & Lamoreaux [Phys. Rep., 237, 1 (1994)]. unique properties combining polarized ultracold neutrons, 3 He, superfluid 4 He be exploited provide a sensitivity ∼ 10 −28 e · cm. Our cryogenic apparatus deploy two small (3 L) measurement...
Metastability exchange optical pumping (MEOP) is a widely used technique for producing polarized $^{3}$He. In connection with an experiment to search the electric dipole moment of neutron (nEDM) we have built MEOP based $^{3}$He polarization and injection system prepare 80 % at room temperature which will be injected into ~400 mK measurement cell filled superfluid $^{4}$He. We describe system, designed allow final concentrations $10^{-8}-10^{-10}$ in cell. Only $\approx0.72\%$ loss due...
Fundamental neutron physics, combining precision measurements and theory, probes particle physics at short range with reach well beyond the highest energies probed by LHC. Significant US efforts are underway that will probe BSM CP violation orders of magnitude more sensitivity, provide new data on Cabibbo anomaly, precisely measure lifetime decay, explore hadronic parity violation. World-leading results from Neutron Physics community since last Long Range Plan, include world's most precise...
While memory effects emerge from systems of wildly varying length- and time-scales, the reduction a complex system with many interacting elements into one simple enough to be understood without also losing behavior continues challenge. Here, we investigate how bistable cylindrical origamis provide such via tunably-interactive behaviors. We base our investigation on folded sheets Kresling patterns that function as two-state units. By linking several units, each selected activation energy,...