Dr. Wietfeldt's research is in neutron physics, in particular precision neutron decay measurements and neutron interferometry. These experiments probe the basic forces of nature, test the Standard Model of particle physics, and explore quantum interactions between neutrons and matter. Experiments are conducted at national neutron science facilities such as the NIST Center for Neutron Research in Gaitherburg, Maryland. Experimental design, setup, and data analysis are done on Tulane campus.

Recent Publications

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Neutron polarimetry using a polarized 3He cell for the aCORN experiment, Nucl. Instr. Meth. A 988, 164862 (2021). B. C. Schafer, W. A. Byron, W. C. Chen, B. Collett, M. S. Dewey, ..., F. E. Wietfeldt

Precision Measurement of the Neutron Scattering Length of 4He Using Neutron Interferometry, Phys. Rev. Lett. 124, 012501 (2020). R. Haun, F. E. Wietfeldt, M. Arif, M. G. Huber, T. C. Black, ...

Measurements of the Neutron Lifetime, Atoms 6, 70 (2018). F. E. Wietfeldt

aCORN: an experiment to measure the electron-antineutrino correlation coefficient in free neutron decay, Rev. Sci. Instr. 88, 083503 (2017). B. Collett, F. Bateman, J. Byrne, W. A. Byron, W. Chen, ..., F. E. Wietfeldt

Measurement of the Electron-Antineutrino Angular Correlation in Neutron Beta Decay, Phys. Rev. Lett. 119, 042502 (2017). G. Darius, W. A. Byron, C. R. DeAngelis, M. T. Hassan, F. E. Wietfeldt, ...

Precision Measurement of the Radiative Beta Decay of the Free Neutron, Phys. Rev. Lett. 116, 242501 (2016). M. J. Bales, R. Alarcon, C. D. Bass, E. J. Beise, H. Breuer, ..., F. E. Wietfeldt

Dr. Wei's research interests include Nanodevice Physics.

Recent Publications

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H. Ji, J. Wei, D. Natelson. "Modulation of the Electrical Properties of VO2 Nanobeams Using an Ionic Liquid as a Gating Medium." Nano Letters 12(6): 2988-2992 (2012).

J. Wei, H. Ji, W. Guo and D. Natelson, “Hydrogen stabilization of metallic VO2 in single-crystal nanobeams”, Nature Nanotechnology 7, 357–362 (2012).

J. Wei, D. Natelson, “Nanostructure Studies of Strongly Correlated Materials”, Nanoscale 3, 3509-3521 (2011).

Z. Wang, J. Wei, P. Morse, O. E. Vilches and D. Cobden, “Phase transitions on the surface of a carbon nanotube”, Science 327, 552 (2010).

J. Wei, Z. Wang, W. Chen, and D. H. Cobden, “Vanadium dioxide nanobeams: probing sub-domain properties of strongly correlated materials”, Nature Nanotechnology 4, 420 (2009).

Dr. Talbayev's research interests include Femtosecond & Terahertz Spectroscopy.

Recent Publications

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Dr. Sun's research interests include Condensed Matter and Materials Theory and Computation/Density Functional Theory.

Dr. Sparks' research interests include Mathematical Physics.

Recent Publications

G Rosensteel, N Sparks, "Connexions for the Nuclear Geometric Collective Model", Journal of Physics A: Mathematical and Theoretical, Volume 48, Number 44 (2015)

N Sparks, G Rosensteel, "Yang-Mills equation for the Nuclear Geometrical Collective Model Connexion", Journal of Physics A: Mathematical and Theoretical, Volume 50, Number 2 (2016)

Dr. Shakov's research interests include Quantum Control & Physics Instruction.

Recent Publications

Kh.Shakov, J.McGuire, L.Kaplan, D.Uskov, and A.Chalastaras, "Sudden Switching in Two-State Systems," J. Phys. B 39, 1361-1378 (2006).

L.Kaplan, Kh.Shakov, A.Chalastaras, M.Maggio, A.Burin, and J.McGuire, "Time Ordering in Kicked Qubits," Phys. Rev. A 70, 063401 (2004).

Kh. Rakhimov, Kh.Shakov, and J.McGuire, "Complete Population Transfer in a Degenerate Three-State Atom," Phys. Rev. A 69, 023405 (2004).

J.McGuire, Kh.Shakov, and Kh. Rakhimov., "Analytic Description of Population Transfer in a Degenerate N-Level Atom," J. Phys. B 36, 3145-3154 (2003).

Kh.Shakov and J.McGuire, "Population Control of 2s-2p Transitions in Hydrogen," Phys. Rev. A 67, 033405 (2003).

J.McGuire, A.Godunov, Kh.Shakov, V.Shipakov, H.Merabet, R.Bruch, and J.Hanni, "Time Ordering in Multi-Electron Dynamics," J. Phys. B 36, 209-216 (2003).

A.Godunov, J.McGuire, P.Ivanov, V.Shipakov, H.Merabet, R.Bruch, J.Hanni, and Kh.Shakov, "Spatial and Temporal Correlation in Dynamic, Multi-Electron Quantum Systems," J. Phys. B 34, 5055-5069 (2001).

J.McGuire, A.Godunov, S.Tolmanov, Kh.Shakov, R.Doerner, H.Schmidt-Boecking, and R.Dreizler, "Time Correlation in Two-Electron Transitions Produced in Fast Collisions of Atoms with Matter and Light," Phys. Rev. A 63, 052706 (2001).

Dr. Schuler's research interests include Experimental Solid State Physics.

Recent Publications

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R.D. McNorton, T.M. Schuler, J.M. MacLaren, and R.A. Stern, "Systematic Trends of First-Principles Electronic Structure Computations of Zn1-xAxB Diluted Magnetic Semiconductors," Physical Review B, Vol. 78, Page 075209 (2008).

J. Jimenez-Mier, D. L. Ederer, T. Schuler, "X-Ray Raman Scattering at the Manganese L Edge of MnF2: Valence Emission of Mn2+," Physical Review A, Vol. 72, Page 52502 (2005).

T. M. Schuler, D. L. Ederer, S. Itza-Ortiz, G. T. Woods, T. A. Callcott, and J. C. Woicik, "Character of the Insulating State in NiO: A Mixture of Charge-Transfer and Mott-Hubbard Character," Physical Review B, Vol. 71, Page 115113 (2005).

T. M. Schuler, R. A. Stern, R. McNorton, S. D. Willoughby, J. M. MacLaren, D. L. Ederer, V. Perez-Dieste, F. J. Himpsel, S. A. Lopez-Rivera, T. A. Callcott, "Electronic Structure of the Dilute Magnetic Semiconductor Zn0.90Mn0.10S Measured by Soft X-Ray Spectroscopy and First Principles Calculations," Physical Review B, Vol. 72, Page 045211 (2005).

J. Jimenez-Mier, D. L. Ederer, and T. Schuler, "Chemical Effects in the Manganese 3s → 2p X-Ray Emission That Follows Resonant and Nonresonant Photon Production of a 2p Hole," Physical Review B, Vol. 70, Page 35216 (2004).

R. A. Stern, T. M. Schuler, J. M. MacLaren, D. L. Ederer, D. A. Resnick, K. Gilmore, Y. U. Idzerda, V. Perez-Dieste, F. J. Himpsel, S. A. Lopez-Rivera, and T. A. Callcott, "Calculated Half Metallic Behavior in Dilute Magnetically Doped ZnS," Journal of Applied Physics, Vol. 95, Page 7468 (2004).

J. Jimenez-Mier, D. L. Ederer, and T. Schuler, "Correlation Effects in the Resonant and Nonresonant Manganese 3s → 2p Photon Emission in MnF2," Physical Review A, Vol. 68, Page 042715 (2003).

J. Jimenez-Mier, D. L. Ederer, T. Schuler, and T. A. Callcott, "Direct Evidence for 3p → 2p Non-Dipole X-Ray Emission in Transition Metals," Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 36, Page L173 (2003).

S. Itza-Ortiz, D. L. Ederer, T. M. Schuler, N. Ruzycki, J. Samuel Jiang, and S. D. Bader, "Model Study of Soft X-Ray Spectroscopic Techniques for Observing Magnetic Circular Dichroism in Buried SmCo Magnetic Films," Journal of Applied Physics, Vol. 93, Page 2002 (2003).

T. M. Schuler, D. L. Ederer, N. Ruzycki, G. Glass, W. A. Hollerman, A. Moewes, M. Kuhn, and T. A. Callcott, "Diffusion of TiN into Aluminum Films Measured by Soft X-Ray Spectroscopy and Rutherford Backscattering Spectroscopy," Journal of Vacuum Science and Technology A, Vol. 19, Page 2259 (2001). 

Dr. Sanchez's research interests include K-12 STEM Education.

Recent Publications

Michelle Hewlett Sanchez, Aaron Lawson, Dimitra Vergyri, and Harry Bratt, "Multi-System Fusion of Extended Context Prosodic and Cepstral Features for Paralinguistic Speaker Trait Classification," in Interspeech, Portland, Oregon, USA, 2012.

Michelle Hewlett Sanchez, Dimitra Vergyri, Luciana Ferrer, Colleen Richey, Pablo Garcia, Bruce Knoth, and William Jarrold, "Using Prosodic and Spectral Features in Detecting Depression in Elderly Males," in Interspeech, Florence, Italy, 2011.

Michelle Hewlett Sanchez, Luciana Ferrer, Elizabeth Shriberg, and Andreas Stolcke, "Constrained Cepstral Speaker Recognition Using Matched UBM and JFA Training," in Interspeech, Florence, Italy, 2011.

Michelle Hewlett Sanchez, Gokhan Tur, Luciana Ferrer, and Dilek Hakkani-Tur, "Domain Adaptation and Compensation for Emotion Detection," in Interspeech, Makuhari, Japan, 2010.

Dr. Rosensteel's research interests include Mathematical Physics.

Recent Publications

G. Rosensteel, “Sp(3,R) mean field theory,” Physical Review C 65, 064321 (2002).

J.L. Graber and G. Rosensteel, “Circulation of a Triaxial, Charged Ellipsoidal Droplet,” Physical Review C 66, 034309 (2002).

J.L Graber and G. Rosensteel, “Sp(3,R) Mean Field Theory for Heavy Deformed Nuclei,” Physical Review C 68, 014301 (2003).

G. Rosensteel, "Mean Field Theory of the General Collective Algebra gcm(3)," J. Phys. A: Math. Gen. 37 (2004) 10967-10981.

Dr. Norton's research interests include linear and non-linear wave propagation in dispersive media, ultrasound propagation through human tissue, computational physics. A new field of interest is numerical relativity.

Recent Publications

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P. M. Jordan, G. V. Norton, S. A. Chin-Bing, and A. Warn-Varnas, "On the propagation of nonlinear acoustic waves in viscous and thermoviscous fluids." European Journal of Mechanics B/Fluids, 34, pp. 56-63, 2012

Robert D. Purrington and Guy V. Norton, “A numerical comparison of the Westervelt equation with viscous attenuation and a causal propagation operator,” Math. Comput. Simul., 82, (7), pp. 1287-1297, 2012. doi:10.1016/j.matcom.2010.05.017.

P. M. Jordan, G. V. Norton, S. A. Chin-Bing, and A. Warn-Varnas, "On the propagation of finite-amplitude acoustic waves in mono-relaxing media." In: S. H. Sohrab, H. J. Catrakis, and N. Kobasko (eds.), Proc. of the 5th IASME/WSEAS Int. Conf. on Continuum Mechanics (CM '10), pp. 67 - 72 (Published by WSEAS Press, 2010).

Guy V. Norton and Robert D. Purrington, “The Westervelt equation with viscous attenuation versus a causal propagation operator: A numerical comparison,” Journal of Sound and Vibration, 327, pp. 163–172, 2009.

Guy V. Norton, “Comparison of homogeneous and heterogeneous modeling of transient scattering from dispersive media directly in the time domain,” Math. Comput. Simul., 80, (4), pp. 682-692, 2009. doi:10.1016/j.matcom.2009.08.018

Guy V. Norton, “ Numerical solution of the wave equation describing acoustic scattering and propagation through complex dispersive moving media,” Nonlinear Analysis 71 (2009) e849-e854.