• Yongjie Xi, Liang Huang, Robert C. Forrey, and Hansong Cheng, Interactions between hydrogen and tungsten carbide: a first principles study, Royal Society of Chemistry Advances 4, 39912 (2014).

  • K. M. Walker, B. H. Yang, P. C. Stancil, N. Balakrishnan, and R. C. Forrey, On the validity of collider-mass scaling for molecular rotational excitation, Astrophysical Journal 790, 96 (2014)

  • Qingfan Zhang, Enoch Tang, Yongjie Xi , Bo Han, Nicole Legenski, Guadalupe Chalas, Frankie Chan, Hansong Cheng, and Robert C. Forrey, Analytic Force Field for Clusters and Nanoparticles of Aluminum and Its Hydride, Physical Review Applied 1, 054004 (2014).

  • D. G. A. Smith, K. Patkowski, D. Trinh, N. Balakrishnan, T.-G. Lee, R. C. Forrey, and P. C. Stancil, Highly Correlated Electronic Structure Calculations of the He-C3 van der Waals Complex and Collision-Induced Rotational Transitions of C3, Journal of Physical Chemistry A (2014)

  • Alex Bohr, Stephen Paolini, Robert C. Forrey, N. Balakrishnan, and P. C. Stancil, A full-dimensional quantum dynamical study of H2+H2 collisions: coupled-states versus close-coupling formulation, Journal of Chemical Physics 140, 064308 (2014).

  • R. C. Forrey, Sturmian Theory of Three-Body Recombination: Application to the formation of H2 in primordial gas, Physical Review A 88, 052709 (2013).

  • R. C. Forrey, Rate of Formation of Hydrogen Molecules by Three-Body Recombination During Primordial Star Formation, Astrophysical Journal Letters 773, L25 (2013)

  • B. Yang, P. C. Stancil, N. Balakrishnan, R. C. Forrey, J. M. Bowman, Quantum Calculation of Inelastic CO Collisions with H: I. Rotational Quenching of Low-lying Rotational Levels, Astrophysical Journal 771, 49 (2013).

  • S. Fonseca dos Santos, N. Balakrishnan, R. C. Forrey, and P. C. Stancil, Vibration-vibration and vibration-translation energy transfer in H2-H2 collisions: A critical test of experiment with full-dimensional quantum dynamics, Journal of Chemical Physics 138, 104302 (2013).

  • B. Yang, R. C. Forrey, P. C. Stancil, S. Fonseca dos Santos, and N. Balakrishnan, Zero-Energy Resonances of Hydrogen Diatom Isotopologs: Tuning Quasiresonant Transitions in Vibration Space, Physical Review Letters, 109, 233201 (2012).

  • A. Bohr, A. Blickle, S. Paolini, L. Ohlinger, and R. C. Forrey, Ionization in collisions between metastable hydrogen atoms, Physical Review A 85, 042710 (2012).

  • J. L. Nolte, P. C. Stancil, T.-G. Lee, N. Balakrishnan, and R. C. Forrey, Rovibrational Quenching Rate Coefficients of HD in Collisions with He, Astrophysical Journal 744, 62 (2012).

  • W. el-Qadi, R. C. Forrey, B. H. Yang, P. C. Stancil, and N. Balakrishnan, Cold collisions of highly rotationally excited CO2 with He: The prospects for cold chemistry with super-rotors, Physical Review A 84, 054701 (2011).

  • Nathan Brahms, Timur V. Tscherbul, Peng Zhang, Jacek Klos, Robert C. Forrey, Yat Shan Au, H.R. Sadeghpour, A. Dalgarno, John M. Doyle, and Thad G. Walker, Formation and dynamics of van der Waals molecules in buffer-gas traps, Physical Chemistry Chemical Physics 13, 19125 (2011).

  • S. Fonseca dos Santos, B. Naduvalath, S. Lepp, G. Quemener, R. C. Forrey, R. J. Hinde, and P. C. Stancil, Quantum dynamics of rovibrational transitions in H2 -H2 collisions: Internal energy and rotational angular momentum conservation effects, Journal of Chemical Physics 134, 214303 (2011).

  • C. Zhou, S. Yao, Q. Zhang, M. Yang, R. C. Forrey, and H. Cheng, Sequential Dissociative Chemisorption on Nin(n=2~9,13) clusters: Comparison with Pt and Pd, Journal of Molecular Modeling 17, 2305 (2011).

  • S. Paolini, L. Ohlinger, and R. C. Forrey, Hydrogen recombination due to collision with He and Ar, Physical Review A 83, 042713 (2011).

  • N. Legenski, C. Zhou, Q. Zhang, B. Han, J. Wu, L. Chen, H. Cheng, and R. C. Forrey Force fields for metallic clusters and nanoparticles, Journal of Computational Chemistry 32, 1711 (2011).

  • N. Balakrishnan, G. Quemener, R. C. Forrey, R. J. Hinde, and P. C. Stancil, Full-dimensional quantum dynamics calculations of H2-H2 collisions, Journal of Chemical Physics 134, 014301 (2011).

  • B. H. Yang, R. C. Forrey, P. C. Stancil, and N. Balakrishnan, Complex scattering lengths for ultracold He collisions with rotationally excited linear and nonlinear molecules, Physical Review A 82, 052711 (2010).

  • B. H. Yang, P. C. Stancil, N. Balakrishnan, and R. C. Forrey, Rotational quenching of CO due to H2 collisions, Astrophysical Journal 718, 1062 (2010).

  • L. Chen, Q. Zhang, Y. Zhang, W. Z. Li, B. Han, C. Zhou, J. Wu, R. C. Forrey, D. Garg, and H. Cheng, A First Principles Study of Water Dissociation on a Cu Cluster, Physical Chemistry Chemical Physics 12, 9845-9851 (2010).

  • S. Miyake, P. C. Stancil, H. R. Sadeghpour, A. Dalgarno, B. M. McLaughlin, and R. C. Forrey, Resonant H- Photodetachment: Enhanced Photodestruction and Consequences for Radiative Feedback, Astrophysical Journal Letters, 709, L168-L171 (2010).

  • J. L. Nolte, B. H. Yang, P. C. Stancil, T.-G. Lee, N. Balakrishnan, R. C. Forrey, and A. Dalgarno, Isotope effects in complex scattering lengths for He collisions with molecular hydrogen, Physical Review A 81, 014701 (2010).

  • P. C. Stancil, S. Miyake, H. R. Sadeghpour, B. M. McLaughlin, and R. C. Forrey, H- Photodetachment in Atomic Physics and Astrophysics, Proceedings of the Dalgarno Celebratory Symposium (Imperial College Press, 2010).

  • N. Balakrishnan, B. C. Hubartt, L. Ohlinger, and R. C. Forrey, Noble gas quenching of rovibrationally excited H2, Physical Review A 80, 012704 (2009).

  • C. Zhou, J. Wu, L. Chen, Y. Wang, H. Cheng, and R. C. Forrey, Force Field for Copper Clusters and Nanoparticles, Journal of Computational Chemistry 30, 2255 (2009).

  • C. Zhou, S. Yao, J. Wu, L. Chen, R. C. Forrey, and H. Cheng, Sequential H2 chemisorption and H desorption on Icosahedral Pt13 and Pd13 clusters: A Density Functional Theory Study, Journal of Computational and Theoretical Nanoscience 6, 1320 (2009).

  • T.-G. Lee, N. Balakrishnan, R. C. Forrey, P. C. Stancil, G. Shaw, D. R. Schultz, and G. J. Ferland, Rotational quenching rate coefficients for H2 in collisions with H2 from 2 to 10,000 K, Astrophysical Journal 689, 1105 (2008).

  • C. Zhou, S. Yao, B. Han, L. Chen, J. Wu, R. C. Forrey, and H. Cheng, A mechanistic study of CO removal on a small H-saturated platinum cluster, Science in China Series B: Chemistry 51, 1187 (2008).

  • L. Chen, B. Chen, C. Zhou, J. Wu, R. C. Forrey, and H. Cheng, Influence of CO Poisoning on Hydrogen Chemisorption onto a Pt6 Cluster, Journal of Physical Chemistry C 112, 13937 (2008).

  • C. Zhou, S. Yao, J. Wu, R. C. Forrey, L. Chen, A. Tachibana, and H. Cheng, Hydrogen Dissociative Chemisorption and Desorption on Saturated Subnano Palladium Clusters, Physical Chemistry Chemical Physics 10, 5445 (2008).

  • T.J.D. Kumar, C. Zhou, H. Cheng, R.C. Forrey, and N. Balakrishnan, Effect of Co doping on catalytic activity of small Pt clusters, Journal of Chemical Physics 128, 124704 (2008).

  • R. C. Forrey, A. Dalgarno, Y. V. Vanne, A. Saenz, and P. Froelich, Non-adiabatic coupling in cold collisions of spin-polarized metastable hydrogen atoms, Physical Review A 76, 052709 (2007).

  • L. Ohlinger, R. C. Forrey, T.-G. Lee, and P. C. Stancil, H2 dissociation due to collisions with He, Physical Review A 76, 042712 (2007). Erratum: Physcal Review A 83, 039908E (2011).

  • C. Zhou, J. Wu, T. J. D. Kumar, B. Naduvalath, R. C. Forrey, and H. Cheng, The growth pathway of Pt clusters on alpha-Al2O3 (0001) surface, Journal of Physical Chemistry C 111, 13786 (2007).

  • C. Zhou, J. Wu, A. Nie, R. C. Forrey, A. Tachibana, and H. Cheng, On the Sequential Hydrogen Dissociative Chemisorption on Subnano Platinum Clusters, Journal of Physical Chemistry C 111, 12773 (2007).

  • C. Luo, C. Zhou, J. Wu, T. J. D. Kumar, N. Balakrishnan, R. C. Forrey, and H. Cheng, First principles study of small palladium cluster growth and isomerization, International Journal of Quantum Chemistry 107, 1632 (2007)

  • A. Nie, J. Wu, C. Zhou, S. Yao, C. Luo, R. C. Forrey, and H. Cheng, Structural evolution of subnano platinum clusters, International Journal of Quantum Chemistry 107, 219 (2007).

  • A. Mack, T. K. Clark, R. C. Forrey, N. Balakrishnan, T.-G. Lee, and P. C. Stancil, Cold He+H2 collisions near dissociation, Physical Review A 74, 052718 (2006).

  • B. Yang, H. Perera, N. Balakrishnan, R. C. Forrey, and P. C. Stancil, Quenching of rotationally excited CO in cold and ultracold collisions with H, He, and H2, Journal of Physics B 39, S1229 (2006).

  • T.-G. Lee, N. Balakrishnan, R. C. Forrey, P. C. Stancil, D. R. Schultz, and G. J. Ferland, State-to-state rotational transitions in H2+H2 collisions at low temperatures, Journal of Chemical Physics 125, 114302 (2006). Erratum: Journal of Chemical Physics 126, 179901 (2007).

  • Y. V. Vanne, A. Saenz, A. Dalgarno, R. C. Forrey, P. Froelich, and S. Jonsell, Doubly excited autoionizing states of H2 converging to the H(n=2)+H(n'=2) limit, Physical Review A 73, 062706 (2006).

  • G. H. Guvelioglu, P. Ma, X. He, R. C. Forrey, and H. Cheng, First principles studies on the growth of small Cu clusters and the dissociative chemisorption of H2, Physical Review B 73, 155436 (2006).

  • R. C. Forrey, G. H. Guvelioglu, P. Ma, X. He, and H. Cheng, Rate constants for dissociative chemisorption of hydrogen molecules on copper clusters, Physical Review B 73, 155437 (2006).

  • B. Yang, P. C. Stancil, N. Balakrishnan, and R. C. Forrey, Quenching of rotationally excited CO by collisions with H2, Journal of Chemical Physics 124, 104304 (2006). Erratum: Journal of Chemical Physics 125, 079904 (2006).

  • B. Yang, P. C. Stancil, N. Balakrishnan, and R. C. Forrey, Close-coupling study of rotational energy transfer of CO(v=2) by collisions with He atoms, Journal of Chemical Physics 123, 134326 (2005).

  • G. H. Guvelioglu, P. Ma, X. He, R. C. Forrey, and H. Cheng, On the Evolution of Small Copper Clusters and Dissociative Chemisorption of Hydrogen, Physical Review Letters 94, 026103 (2005).

  • T.-G. Lee, C. Rochow, R. Martin, T. K. Clark, R. C. Forrey, N. Balakrishnan, P. C. Stancil, D. R. Schultz, A. Dalgarno, and G. J. Ferland, Close-coupling calculations of low-energy inelastic and elastic processes in He collisions with H2: a comparative study of two potential energy surfaces, Journal of Chemical Physics 122, 024307 (2005).

  • F. Robicheaux and R. C. Forrey, Propagation of double Rydberg wave packets, Journal of Physics B 38, S363 (2005).

  • R. C. Forrey, Emission spectrum for polar super rotors in a cold buffer gas, European Physical Journal D 31, 409 (2004).

  • P. Florian, M. Hoster, and R. C. Forrey, Rotational relaxation in ultracold CO+He collisions, Physical Review A 70, 032709 (2004).

  • S. Jonsell, R. C. Forrey, A. Saenz, P. Froelich, and A. Dalgarno Fine structure in cold collisions of spin-polarized H(2s) atoms, Physica Scripta T110, 299 (2004).

  • R. C. Forrey, Compact representation of helium wavefunctions in perimetric and hyperspherical coordinates, Physical Review A 69, 022504 (2004).

  • K. Tilford, M. Hoster, P. M. Florian, and R. C. Forrey, Cold collisions involving rotationally hot oxygen molecules, Physical Review A 69, 052705 (2004).

  • R. C. Forrey, S. Jonsell, A. Saenz, P. Froelich, and A. Dalgarno Cold Collisions of spin-polarized metastable hydrogen atoms, Physical Review A, Rapid Communication 67, 040701 (2003).

  • S. Blanchard, D. Civello, and R. C. Forrey, Index of refraction for sodium matter waves traveling in a cold noble gas medium, Physical Review A 67, 013604 (2003).

  • R. C. Forrey, Collisional Quenching of Internally Excited Atoms and Molecules at Cold and Ultracold Temperatures, Proceedings of the 17th International Conference on the Application of Accelerators in Research and Industry (American Institute of Physics 2003).

  • R. C. Forrey, Prospects for cooling and trapping rotationally hot molecules, Physical Review A 66, 023411 (2002).

  • H. Cheng, H. Rabitz, and R. C. Forrey, Parametric equations of motion for the transition operator and the Green's operator, Physical Review A 66, 022704 (2002).

  • R. C. Forrey, V. Kharchenko, and A. Dalgarno, On the statistical averaging procedure for the refractive index of matter waves, Journal of Physics B: Atomic Molecular and Optical Physics 35, L261 (2002).

  • S. Jonsell, A. Saenz, P. Froelich, R. C. Forrey, R. Cote, and A. Dalgarno, Long-range interactions between two 2s excited hydrogen atoms, Physical Review A 65, 042501 (2002).

  • J. C. Flasher and R. C. Forrey, Cold collisions between argon atoms and hydrogen molecules, Physical Review A 65, 032710 (2002).

  • R. C. Forrey, N. Balakrishnan, A. Dalgarno, M. R. Haggerty, and E. J. Heller, The effect of quasiresonant dynamics on the predissociation of van der Waals molecules, Physical Review A 64, 022706 (2001).

  • R. C. Forrey, Cooling and trapping of molecules in highly excited rotational states, Physical Review A, Rapid Communication 63, 051403 (2001).

  • R. C. Forrey, R. Cote, A. Dalgarno, S. Jonsell, A. Saenz, and P. Froelich, Collisions between metastable hydrogen atoms at thermal energies, Physical Review Letters 85, 4245 (2000).

  • N. Balakrishnan, A. Dalgarno, and R. C. Forrey, Vibrational relaxation of CO by collisions with He at ultracold temperatures, Journal of Chemical Physics 113, 621 (2000).

  • N. Balakrishnan, M. Vieira, J. F. Babb, A. Dalgarno, R. C. Forrey, and S. Lepp, Rate Coefficients for Rovibrational Transitions in H2 Due to Collisions with He, Astrophysical Journal 524, 1122 (1999).

  • R. C. Forrey, N. Balakrishnan, A. Dalgarno, M. R. Haggerty, and E. J. Heller, Quasiresonant energy transfer in ultracold atom-diatom collisions, Physical Review Letters 82, 2657 (1999).

  • N. Balakrishnan, R.C. Forrey, and A. Dalgarno, Quantum mechanical study of ro-vibrational transitions in H2 induced by He atoms, Astrophysical Journal 514, 520 (1999).

  • R. C. Forrey, V. Kharchenko, N. Balakrishnan, and A. Dalgarno, Vibrational relaxation of trapped molecules, Physical Review A 59, 2146 (1999).

  • R. C. Forrey, A. Dalgarno, and Joerg Schmiedmayer, Determining the electron forward scattering amplitude using electron interferometry, Physical Review A, Rapid Communication 59, R942 (1999).

  • R. C. Forrey, N. Balakrishnan, V. Kharchenko, and A. Dalgarno, Feshbach resonances in ultracold atom-diatom scattering, Physical Review A, Rapid Communication 58, R2645 (1998).

  • N. Balakrishnan, R. C. Forrey, and A. Dalgarno, Quenching of H2 vibrations in ultracold He collisions, Physical Review Letters 80, 3224 (1998).

  • R. C. Forrey, J. W. Woo, and K. Cho, Model for astrophysical X-ray absorption fine structure, Astrophysical Journal 505, 236 (1998).

  • R. C. Forrey, Z.-C. Yan, H. R. Sadeghpour, and A. Dalgarno, Single and double photoionization from dipole response function, Physical Review Letters 78, 3662 (1997).

  • R. C. Forrey, N. Balakrishnan, A. Dalgarno, and S. Lepp, Quantum mechanical calculations of rotational transitions in H-H2 collisions, Astrophysical Journal 489, 1000 (1997).

  • R. C. Forrey, L. You, V. A. Kharchenko, and A. Dalgarno, Refining molecular potentials using atom interferometry, Physical Review A, Rapid Communication 55, R3311 (1997).

  • N. Balakrishnan, V. Kharchenko, R. C. Forrey, and A. Dalgarno, Complex scattering lengths in multi-channel atom-molecule collisions, Chemical Physics Letters 280, 5 (1997).

  • N. Balakrishnan, R. C. Forrey, and A. Dalgarno, Threshold phenomena in ultracold atom-molecule collisions, Chemical Physics Letters 280, 1 (1997).

  • J. W. Woo, R. C. Forrey, and K. Cho, Astrophysical extended X-ray absorption fine structure analysis, Astrophysical Journal 477, 235 (1997).

  • R. C. Forrey, Computing the Hypergeometric Function, Journal of Computational Physics 137, 79-100 (1997).

  • R. C. Forrey, L. You, V. A. Kharchenko, and A. Dalgarno, Index of refraction of noble gases for sodium matter waves, Physical Review A 54, 2180 (1996).

  • R. C. Forrey, H. R. Sadeghpour, J. D. Baker, J. D. Morgan III, and A. Dalgarno, Double photoionization of excited S-states of the helium isoelectronic sequence, Physical Review A 51, 2112 (1995).

  • R. C. Forrey, R. N. Hill, and R. D. Sharma, Convergence acceleration for the Kohn variational method in the presence of a long-range interaction, Physical Review A 52, 2948 (1995).

  • R. C. Forrey and R. N. Hill, Computation of Bethe Logarithms and Other Matrix Elements of Analytic Functions of Operators, Annals of Physics 226, 88-157 (1993).