Research

Interesting research oppotunities for enthusiastic and curious students who are now in their fourth year or doing their graduate studies on the following topics:

  1. Gravitational waves
  2. The Lambert and Polylogarithm functions and their role in quantum statistics

Interested students can contact Dr. Valluri through email on the right of the page.

Publications

List of Publications in Refereed Journals :

  1. Subramanian, Krishnaveni; M, Sundareswari; Deshmukh, Pranawa; Valluri S.R, Roberts, Ken, "Band structure and transport studies of half Heusler compound DyPdBi: An efficient thermoelectric material", Journal of Materials Research, 31(9), (2016) 1306-1315.
  2. S. Auddy, S. Basu, and S.R. Valluri, "An Analytic Model for The Sub-stellar Mass Limit And Brown Dwarf Evolution". Accepted for publication in Advances in Astronomy May 2016.
  3. J. V. Narlikar; S. V. Dhurandhar; R. G. Vishwakarma; S. R. Valluri; S. Auddy, "Gravitational wave background in the quasi-steady state cosmology", Monthly Notices of the Royal Astronomical Society 451 (2) (2015): 5908-5913, doi: 10.1093/mnras/stv1088.
  4. B.G. Sidharth and S.R. Valluri "Cosmic Background Radiation", Int J Theor Phys 54 (2) (2015) 2792-2797
  5. S.R. Valluri, P. Wiegert, J. Drozd and M. DaSilva, "The study of the logarithmic potentials for galaxies", Monthly Notices of the Royal Astronomical Society 427 (2012) 2392-2400.
  6. P. G. Komorowski, S.R. Valluri and M. Houde, "The Carter constant for inclined orbits about a massive Kerr black hole: near-circular, near-polar orbits", Central European Journal of Physics, in Press (2012).
  7. M. Molli, K. Venkataramaniah, S.R. Valluri, "The Polylogarithm and the Lambert W Functions in Thermoelectrics", Canadian Journal of Physics, 89(11): 1171-1178 (2011), DOI: 10.1139/p11-124.
  8. K.F. Tiampo, F.A. Ouegnin, S.R. Valluri, S. Samsonov, J. Fernández, "An Elliptical Model for Deformation Due to Groundwater Fluctuations", Pure and Applied Geophysics, 168, 1-14 (2010).
  9. J. Tanguay, M. Gil, D. J. Jeffrey and S.R. Valluri, "D Dimensional Bose Gases and the Lambert W Function", Journal of Mathematical Physics, 51, 123303 (2011), DOI: 10.1007/s00024-011-0402-3.
  10. P. G. Komorowski, S.R. Valluri and M. Houde, "The Carter constant for inclined orbits about a massive Kerr black hole: I. Circular orbits ", Classical and Quantum Gravity, 27, 225023 (2010).
  11. S.R. Valluri, M. Gil, D. J. Jeffrey and S. Basu, "The Lambert W Function and Quantum Statistics", Journal of Mathematical Physics, 50, 102103 (2009).
  12. P.G. Komorowski, M. Houde and S.R. Valluri, "A study of elliptical last stable orbits about a massive Kerr Black Hole", Classical and Quantum Gravity, 26 (2009) 085001.
  13. M.E. Normandin, A. Vajda, and S. R. Valluri. "Gravitational Wave Signal Templates , Pattern Recognition and Reciprocal Eulerian Gamma Functions", Theoretical Computer Science (2008) doi:10.1016/j.tcs.2008.09.018.
  14. F.A. Chishtie, K.M. Rao, I.S. Kotsireas, S.R. Valluri. "An investigation of uniform expansions of large order Bessel functions in Gravitational Wave Signals from Pulsars", Inter. J. Mod. Phys. D. 17 (8) (2008), 1197-1212.
  15. S.R. Valluri, M.D. Fried (2008). Chebyshev Derived Spindown Parameters for Gravitational Wave Signals from Pulsars. Can. J. Physics, 86, 597-600.
  16. N. Kiriushcheva, S. Kuzmin, C. Racknor, and S.R Valluri (2008). "Diffeomorphism invariance in the Hamiltonian formulation of General Relativity", Phys. Letters A 372, 5101-5105.
  17. Valluri, S.R. The Gravitational Wave Pulsar Signal with Jovian and Lunar Perturbations and Orbital Eccentricity Corrections, Classical and Quantum Gravity 23(2006): 3323-3332.
  18. Valluri, S.R., Rao, K.M., Wiegert P., Chishtie, F.A. "A Study of the Gravitational Wave Pulsar Signal with Orbital and Spindown Effects", Canadian Journal of Physics 84(2006): 1-7.
  19. Romo, W.J., and S.R. Valluri (2005) "An Extension of the Pais Variational Phase Shift Approximation", Physica Scripta 71 (6): 572-581.
  20. Valluri, S.R., P. Yu, G.E. Smith, and P.A. Wiegert (2005) "An Extension of Newton's Apsidal Precession Theorem", Monthly Notices of the Royal Astronomical Society 358 (4): 1273-1284.
  21. F. Xie, G. Reid and S.R. Valluri (2004) "A numerical method for one dimensional action functionals of photonic band gap structures", Canadian Journal of Physics, Vol. 82, 423-437.
  22. Feoli, S.R. Valluri (2004) "A Study of The De Broglie Gravitational waves", International Journal of Modern Physics D, Vol. 13, no. 5, 907-921.
  23. T.J. Hayes, S.R. Valluri, and L. Mansinha (2004) "Gravitational Effects from Earthquakes", Canadian Journal of Physics, Vol. 82 1027-1040.
  24. S.R. Valluri, J.J. Drozd, F.A. Chishtie, R.G. Biggs, M. Davison, S.V. Dhurandhar and B.S. Sathyaprakash (2002). "A Study of the Gravitational Wave Form of Pulsars", Classical and Quantum Gravity, Vol. 19 1327-1334.
  25. U.D. Jentschura, H. Gies, S.R. Valluri, D.R. Lamm and E.J. Weniger (2002) "QED Effective Action Revisited", Canadian J. Physics Vol. 80 267-284
  26. S. R. Valluri, R. M. Corless and D. J. Jeffrey "Some Applications of the Lambert W Function to Physics", Can. J. Physics 78, 823-831 (2000)
  27. S. R.  Valluri, R. G. Biggs, W. L. Harper, and Curtis Wilson "The Significance of the Mathieu-Hill Differential Equation for Newton's Apsidal Precession Theorem", Can. Journal of Physics, 77, 393-407. (1999)
  28. W.J. Romo and S. R. Valluri “A Study of the Momentum Dependence of the Phase shift for Finite Range and Coulomb Potentials", Nucl. Phys. A. 636, 467-484, (1998)
  29. S. R. Valluri, W.L. Harper and C. Wilson "Newton's Apsidal Precession Theorem and Eccentric Revolving Orbits", J. History of Astronomy. 1997, 28, Part 1, 13-27
  30. S. R. Valluri, J.J.Drozd, F.A.Chishtie, R.G.Biggs, M.Davison , Sanjeev.V. Dhurandhar and B.S.Sathyaprakash "A Study of the Gravitational Wave Form of Pulsars", Classical and Quantum Gravity, 2002,Vol19:1327-1334
  31. D.R.Lamm,S.R.Valluri,U.D.Jentschura,and E.J.Weniger, Comment on " A Convergent Series For The QED Effective Action" Physical Review Letters, 2002,Vol 88, 089101 (2002);
  32. S. R. Valluri, R. M. Corless and D. J. Jeffrey, "Some Applications of the Lambert W Function to Physics". Canadian J. Physics 778,(2000) 823-831.
  33. S. R. Valluri, R. G. Biggs, W. L. Harper, and Curtis Wilson, "The Significance of the Mathieu-Hill Differential Equation for Newton's Apsidal Precession Theorem"; Canadian Journal of Physics, Vol 77, pp. 393-407.
  34. W.J. Romo and S. R. Valluri, "A Study of the Momentum Dependence of the Phase shift for Finite Range and Coulomb Potentials," Nucl. Phys. A. 636, 1998, pp. 467-484.
  35. S.R. Valluri, W.L. Harper and C. Wilson, "Newton's Apsidal Precession Theorem and Eccentric Revolving Orbits"; Jour. History of Astronomy. February 1997, Vol. 28, Part 1, pp. 13-27.
  36. K. Jotania, S.R. Valluri and S.V. Dhurandhar, "A Study of the Gravitational Wave Form of Pulsars," to Astronomy and Astrophysics, Vol. 301, No. 1, February 1996, pp. 317-325.
  37. J. Weinbrenner, W. Scheid and S.R. Valluri, "Lepton Pair Production by Low Energy Brems-strahlung in Relativistic Heavy Ion Collisions in Second Order Perturbation Theory." International Journal of Modern Physics E, Vol. 4, 1995, pp. 587-606.
  38. S.R. Valluri, W.J. Mielniczuk and D.R. Lamm, "Numerical Evaluation of the Properties of Real Part of the Heisenberg-Euler Effective Lagrangian." Festchrift for the 90th Birthday of Gerhard Herzberg, Canadian Journal of Physics 72, No. 11 & 12, (1994) 786-792.
  39. W.H. El-Maraghy, S.R. Valluri, B. Skubnik and P.D. Surry, "Intersection Volumes and Surface Areas of Some Primitive Solids for Geometrical Modelling and Tolerancing," Computer Aided Design 26 (1994) 29-45.
  40. S.R. Valluri and W.J. Romo, "High Energy Asymptotic Forms for Partial Derivatives of Phase Shifts with Respect to Angular Momentum," Nuclear Instruments B90 (1994) 589-592.
  41. W.L. Harper, B.H. Bennett and S.R. Valluri, "Unification and Support: Harmonic Law Ratios Measure the Mass of the Sun," Synthese (1994) 131-146.
  42. S.R. Valluri, D.R. Lamm, and W.J. Mielniczuk, "Applications of the Representation of the Heisenberg- Euler Lagrangian by Means of Special Functions," Can. J. Physics 71 (1993): 389-397.
  43. T. Lippert, S.R. Valluri, N. Grün and W. Scheid, "Discrimination of Photons from Classical and Quantum mechanical sources." International Journal of Modern Physics A.6. No. 5 (1991) 749-754.
  44. W.J. Romo and S.R. Valluri, "An Investigation of the Pais Phase Shift Approximation, " J. Phys. B. 23 (1990) 4223-4238.
  45. Y.Q. Cai, G. Papini, W.R. Wood and S.R. Valluri, "On the classical origin of Berry's Phase for Photons," Quantum Optics 1 (1989) 49-52.
  46. S.R. Valluri and W.J. Romo, "A Study of The Angular Momentum Dependence of the Phase Shift For Finite Range and Coulomb Potentials," Nucl.Phys. A 492 (1989) 493-508.
  47. G. Papini and S.R. Valluri, "Photoproduction of High Frequency Gravitational Radiation by Galactic and Extragalactic Sources," Astronomy and Astrophysics 208 (1989) 345-350.
  48. D.Y. Kim, S.R. Valluri and M.S. Zaheer, "Photo and Electro Production of a New Light Boson," Annalen der Physik, 45,5 (1988) 457-468.
  49. W.J. Mielniczuk, D.R. Lamm and S.R. Valluri, "Paramagnetic Properties of a Vacuum Embedded in a Strong Magnetic Field," Canadian J. Physics 66 (1988) 692-694.
  50. W.J. Romo and S.R. Valluri, "A Study of the Dependence of Optical Model Phase Shifts on the Charge and Mass Number of the Target Nucleus," Phys. Letts. B192 (1987) 21-25.
  51. M. Ney, S.R. Valluri, W. Yue, G. Costache and W.J.R. Hoefer, "A study of Electric Field Breakdown in E-Plane Lines at Centimetre and Millimetre Wavelengths," Proc. IEEE MTT 35, No. 5 (1987) 502-509.
  52. S.R. Valluri, U. Becker, N. Grün and W. Scheid, "Comparison of Ionisation Probabilities in the Semiclassical Approximation Calculated with Rutherford and Modified Straight-line Trajectories," J. Phys. B 18 (1985) 113-115.
  53. S.R. Valluri, U. Becker, N. Grün and W. Scheid, "K Shell Ionisation in Relativistic Heavy Ion Collisions," J. Phys. B17 (1984) 4359-4370.
  54. S.R. Valluri, W.J. Mielniczuk and D.R. Lamm, "Comments on the Evaluation of the Effective Potential in Quantum Electrodynamics," Physical Review D25 (1982) 2729-2735.
  55. S.R. Valluri and P. Bhartia, " An Analytical Proof for the Generation of Higher Harmonics Due to the Interaction of Plane Electromagnetic Waves," Canadian Journal of Physics 58 (1980) 116-122.
  56. P. Bhartia and S.R. Valluri, " On the Differential Scattered Power Due to the Nonlinear Interaction of Light for Ultra Strong Fields," Canadian Journal of Physics, 57 , (1979) 2132-2135.
  57. D.Y. Kim and S.R. Valluri, "Neutrino Induced Phion Production," Hadronic Journal, Vol. 1, No. 5, (1978) 1142.
  58. P. Bhartia and S.R. Valluri, "Nonlinear Interaction of Light in the Limit of Ultra Strong Fields," Canadian Journal of Physics, 56 (1978) 1122-1132.
  59. G. Papini and S.R. Valluri, "Photoproduction of Gravitons in a Static Magnetic Field Due to Currents," Canadian Journal of Physics, 56, (1978) 801-805.
  60. G. Papini and S.R. Valluri, "Gravitons in Minkowski Space Time," Physics Reports, (Holland) Vol. 33c (1977).
  61. G. Papini and S.R. Valluri, "Photoproduction of Gravitational Radiation in Some Astrophysical Objects," Canadian Journal of Physics 54, (1976) 76-79.
  62. G. Papini and S.R. Valluri, "Photoproduction of Gravitational Radiation in Static Electromagnetic Fields, Radiative Corrections," Canadian Journal of Physics, 53 (1975) 2315-2320.
  63. G. Papini and S.R. Valluri, "Photoproduction of Gravitons in Static Electromagnetic Fields," Canadian Journal of Physics 53 (1975) 2306-2311.
  64. G. Papini and S.R. Valluri, "Photoproduction of Gravitational Radiation by Pulsars," Canadian Journal of Physics 53 (1975) 2312-2314.

Publications accepted in Refereed Journals :

Publications in Refereed Conference Proceedings (Recent) :

  1. M.E. Normandin, A, Vajda, and S.R.Valluri. (2007). Matched Filtering a Gravitational Wave Pulsar Signal Involving Reciprocal Gamma Functions. International Conference on Symbolic and Algebraic Computation Proceedings of the International Workshop on Symbolic-Numeric Computation. Association for Computing Machinery (ACM) Transactions, 133-141.
  2. F. A. Chishtie, S. R. Valluri, K.M. Rao, D. Sikorski and T. Williams, The Analysis of Large Order Bessel Functions in Gravitational Wave Signals from Pulsars IEEE, Signal Processing, IEEE Computer Society Press, Proc. 19th Annual Symposium, High Performance Computing Systems Applications 2005, Guelph, ON, Canada.
  3. S.R. Valluri, U.D. Jentschura and D.R. Lamm (2003) “The study of the Heisenberg-Euler Lagrangian and some of its Applications,” AIP Conference Proceedings, Vol. 687 (1) 203-222.
  4. S.R. Valluri, F.A. Chishtie, R.G. Biggs, M. Davison, S.V. Dhurandhar and B.S Sathyaprakash (2003) “A Study of the Gravitational Wave Form From Pulsars” Proceedings of the Ninth Marcel Grossmann Meeting on General Relativity, Rome, July 2000, World Scientific 1923-1924.
  5. W.L. Harper, S.R. Valluri and R.B. Mann (2003) “Jupiter’s Moons as A Test of The Equivalence Principle” Proceedings of the Ninth Marcel Grossmann Meeting on General Relativity, Rome, July 2000, World Scientific 1803-1813.
  6. S.R. Valluri, J. Drozd, F.A. Chishtie, B.S. Sathyaprakash and S. Dhurandhar (2002) “A Study of the Gravitational Wave Pulsar Signal,” Hanford, WA, LIGO Workshop.
  7. e-print hep-th/0007108. The unified representation (\ref{UniSpecial}
  8. S. R. Valluri, W. J. El-Maraghy, and M. Gadalla, "Practical Applications for Intersection of Primitives for Geometrical Modelling and Tolerancing," CIRP Proceedings on Computer Aided Tolerancing, University of Toronto, 1997. (Accepted.)
  9. W. J. El-Maraghy, M. Gadalla, S.R. Valluri and B.M. Skubnik, "Relating ANSI GD & T Standards and Symbols to Variations on Primitives," ASM Proceedings, Nov. 1995, San Francisco..
  10. S. R. Valluri, W. H. ElMaraghy, and M. Gadalla Practical Applications for Intersection of Mechanical Primitives for Geometrical Tolerancing" in Geometric Design Tolerancing: Theories, Standards and Applications, ed Hoda A. ElMaraghy, Chapman & Hall, 220-231, (1998)

Presentations at Conferences, Colloquia and Professional Meetings (Recent) :

  1. Normandin, M., Komorowski, P., Gil, M., and Valluri, S.R. (2006) “Gravitational Wave Signals and Pattern Recognition through Matched Filtering.” Theory CANADA 2, Perimeter Institute, Waterloo, June 7-10.
  2. Rao, K.M., Valluri, S.R., Chishtie, F.A., Kotsireas, I., and Wiegert, P. (2006) “Effects of Perturbations by the Moon and Jupiter on a Gravitational Wave Pulsar Signal.” CAP Conference, Brock University, June 2006.
  3. A. Feoli and S.R. Valluri (2004) “Some properties of the De Broglie Gravitational Waves” Italian Relativity Congress, Vietre, Italy Sept 2004.
  4. S.R. Valluri, R. Pinnegar, J. Drozd, A. Vajda, R.K. Rao (2003) “Spindown of a Periodic Gravitational Wave Pulsar Signal and the Zak-Gelfand Integral Transform,” Canadian Association of Physics (CAP), Charlottetown, PEI
  5. A. Vajda, J. Drozd, S.R. Valluri, R.K. Rao (2003) “Spindown of a Periodic Gravitational Wave Pulsar Signal and the Zak-Gelfand Integral Transform,” CAIMS, Montreal, June 2003.
  6. S.R. Valluri, J. Drozd, B.S. Sathyaprakash and S. Dhurandhar (2003) “A Study of the Gravitational Wave Pulsar Signal,” Canadian Association of Physics, Charlottetown, PEI, June 2003.
  7. S.R. Valluri, J. Drozd, B.S. Sathyaprakash and S.V. Dhurandhar (2002) “A Study of the Gravitational Wave Pulsar Signal,” CAP, Quebec City, June 2002.
  8. Valluri, S.R., Drozd, J., Sathyaprakash, B.S., and Dhurandhar, S.V.  (2001). “A Study of the Gravitational Wave Form of Pulsars.” CAP, Victoria, BC, June 2001.
  9. Drozd, J., Valluri, S.R., and Sidharth, B.J.  (2000). “The Nonlinear Schroedinger Equation in Nonlinear nuclear dynamics.” World Congress in Nonlinear Analysis, Catania, Italy, July 2000.
  10. Valluri, S.R., Drozd,J., Chishtie, F., Sathyaprakash, B.S., and Dhurandhar, S.V. (2000). “A Study of the Gravitational Wave Form of Pulsars.” CAP, York University, June 2000.

Research Collaboration :

  • 2008-present:
    1.“The Variation of the Gravitational Constant G” with Prof. B. G.Sidharth, Director Birla Sciences Centre, Hyderabad, AP, India

  • 2005-present:
    1.“An Elliptical Model for Deformation due to Groundwater Fluctuations,” with Prof. Kristy Tiampo, Earth Sciences Dept., and Francois Ouegnin, Appl. Math UWO (presently graduate student at Dept of Appl Maths, York University)
    2. “Gravitational Wave Signals from Pulsars and Uniform Expansions of Bessel Functions,” with Prof. Ilias Kotsireas, Dept. of Physics & Comp Science, Wilfred Laurier University, Waterloo
    3. “Tomographic Reconstruction for LISA Sources,” with Prof. S.M. Mohanty, Physics & Astronomy Department, University of Texas, Brownsville.

  • Summer 2004:“LISA Sources for Gravitational Waves and Binary Black Hole Orbits,” Prof. B. S. Sathyaprakash, Physics & Astronomy Dept., Cardiff University, Wales.

  • Summer 2003:  
    1.  “De-Broglie Gravitational Waves” with Prof. A. Feoli, University of Salerno, Italy.
    2.  “The Heisenberg-Euler Lagrangian”, University of Heidelberg with Professors. Holger Gies and Ulrich Jentschura

     May to Aug. 2001: Einstein Papers Project, California Institute of Technology, Pasadena, California.

Referee for the following Journals (1999-present):

  • Foundations of Physics
  • Celestial Mechanics and Dynamical Astronomy
  • Physics Essays
  • International Symposium on Symbolic and Algebraic Computation Applications and Computing (ISAAC)
  • Canadian Journal of Physics
  • Classical and Quantum Gravity
  • Mathematical and Computer Modelling (MCM)

Also from this web page:

Contact

.: Sree Ram Valluri,
Assistant Professor :.


(519) 661-2111 ext. 86499 or valluri@uwo.ca

FAX: (519) 661-3523 (AM)
FAX: (519) 661-2033 (P&A)

Physics and Astronomy Bldg., Room 311


Professional Physicist, Canadian Association of Physicists