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Dr Jonathan Gratus

Lecturer

  1. 2018
  2. Forthcoming

    The correct and unusual coordinate transformation rules for electromagnetic quadrupoles

    Gratus, J. & Banaszek, T. 9/04/2018 In : Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 16 p.

    Research output: Contribution to journalJournal article

  3. Published

    Customizing longitudinal electric field profiles using spatial dispersion in dielectric wire arrays

    Boyd, T., Gratus, J., Kinsler, P. & Letizia, R. 5/02/2018 In : Optics Express. 26, 3, p. 2478-2494 17 p.

    Research output: Contribution to journalJournal article

  4. 2017
  5. Published

    A pictorial introduction to differential geometry, leading to Maxwell's equations as three pictures

    Gratus, J. 21/09/2017 In : arxiv.org.

    Research output: Contribution to journalJournal article

  6. Published

    Subwavelength mode profile customisation using functional materials

    Gratus, J., Kinsler, P., Letizia, R. & Boyd, T. 6/09/2017 In : Journal of Physics Communications. 1, 2, 8 p., 025003

    Research output: Contribution to journalJournal article

  7. Published

    Electromagnetic mode profile shaping in waveguides

    Gratus, J., Kinsler, P., Letizia, R. & Boyd, T. 01/2017 In : Applied Physics A. 123, 6 p., 108

    Research output: Contribution to journalJournal article

  8. 2016
  9. Published

    On spacetime transformation optics: temporal and spatial dispersion

    Gratus, J., Kinsler, P., McCall, M. W. & Thompson, R. T. 12/2016 In : New Journal of Physics. 18, 19 p., 123010

    Research output: Contribution to journalJournal article

  10. Published

    Dispersion in space-time transformation optics

    Kinsler, P., Gratus, J., McCall, M. & Thompson, R. 14/08/2016 Electromagnetic Theory (EMTS), 2016 URSI International Symposium on. IEEE, p. 356-358 3 p.

    Research output: Contribution in Book/Report/ProceedingsConference contribution

  11. Published

    Electromagnetic mode profile shaping in waveguides

    Boyd, T., Kinsler, P., Gratus, J. & Letizia, R. 14/08/2016 Electromagnetic Theory (EMTS), 2016 URSI International Symposium on. IEEE, p. 725-727 3 p.

    Research output: Contribution in Book/Report/ProceedingsConference contribution

  12. Published

    Customised mode profiles using functional materials

    Gratus, J., Kinsler, P., Letizia, R. & Boyd, T. 14/07/2016 In : arxiv.org.

    Research output: Contribution to journalJournal article

  13. 2015
  14. Published

    On the self-force in Bopp-Podolsky electrodynamics

    Gratus, J., Perlick, V. & Tucker, R. W. 7/10/2015 In : Journal of Physics A: Mathematical and Theoretical. 48, 43, 28 p., 435401

    Research output: Contribution to journalJournal article

  15. Published

    Spatially dispersive inhomogeneous dielectric wire media with periodic structure

    Gratus, J., McCormack, M. & Letizia, R. 30/07/2015 Proceedings of PIERS 2015 in Prague, July 6-9, 2015. Cambridge, Mass.: The Electromagnetics Academy, p. 675-680 6 p.

    Research output: Contribution in Book/Report/ProceedingsPaper

  16. Published

    Spatially dispersive inhomogeneous electromagnetic media with periodic structure

    Gratus, J. & McCormack, M. 30/01/2015 In : Journal of Optics. 17, 2, 10 p., 025105

    Research output: Contribution to journalJournal article

  17. 2014
  18. Published

    Reconstruction of lattice parameters and beam momentum distribution from turn-by-turn beam position monitor readings in circular accelerators

    Gratus, J., Edmonds, C., Hock, K., Machida, S., Muratori, B., Torromé, R. G. & wolski, A. 2/05/2014 In : Physical Review Special Topics: Accelerators and Beams. 17, 5, 9 p., 054401

    Research output: Contribution to journalJournal article

  19. 2013
  20. Published

    Inhomogeneous spatially dispersive electromagnetic media

    Gratus, J. & McCormack, M. 3/09/2013 Progress In Electromagnetics Research Symposium Proceedings, Stockholm, Sweden, Aug. 12-15, 2013. p. 1007-1012 6 p.

    Research output: Contribution in Book/Report/ProceedingsPaper

  21. Published

    Colombeau algebra: a pedagogical introduction

    Gratus, J. 1/08/2013 In : arxiv.org.

    Research output: Contribution to journalJournal article

  22. Published

    The radiative self-force and charged fluids

    Burton, D., Carr, A., Gratus, J. & Noble, A. 9/05/2013 Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III. Esarey, E., Schroeder, C. B., Leemans, W. P., Ledingham, K. W. D. & Jaroszyski, D. A. (eds.). SPIE, Vol. 8779

    Research output: Contribution in Book/Report/ProceedingsPaper

  23. Published

    A kinetic model of radiating electrons

    Noble, A., Gratus, J., Burton, D. & Jaroszynski, D. 2013 In : Journal of Mathematical Physics. 54, 4, 8 p., 043101

    Research output: Contribution to journalJournal article

  24. 2012
  25. Published

    Conservation laws and stress–energy–momentum tensors for systems with background fields

    Gratus, J., Tucker, R. & Obukhov, Y. 10/2012 In : Annals of Physics. 327, 10, p. 2560-2590 31 p.

    Research output: Contribution to journalJournal article

  26. Published

    Symplectic integrator for s-dependent static magnetic fields based on mixed-variable generating functions

    Wolski, A., Gratus, J. & Tucker, R. 04/2012 In : Journal of Instrumentation. 7, 4, p. - 20 p., P04013

    Research output: Contribution to journalJournal article

  27. Published

    Stephen N. Lyle: Self-force and inertia: old light on new ideas: Springer Lecture Notes in Physics, Vol. 796, 2011, 396 p., €74.85, ISBN: 978-3-642-04784-8

    Gratus, J. 2012 General Relativity and Gravitation, 44, 1, p. 303-304 2 p.

    Research output: Contribution to specialist publicationBook/Film/Article review

  28. 2011
  29. Published

    The origin of the Schott term in the electromagnetic self force of a classical point charge

    Ferris, M. R. & Gratus, J. 09/2011 In : Journal of Mathematical Physics. 52, 9, p. - 9 p., 092902

    Research output: Contribution to journalJournal article

  30. Published

    Covariant constitutive relations and relativistic inhomogeneous plasmas

    Gratus, J. & Tucker, R. 04/2011 In : Journal of Mathematical Physics. 52, 4, 26 p., 042901

    Research output: Contribution to journalJournal article

  31. Published

    Covariant electromagnetic constitutive theory for dispersive continua

    Goto, S., Gratus, J., Hale, A., Tucker, R. & Walton, T. 2011 Elasticity and anelasticity: proceedings of the international scientific symposium on problems of the mechanics of deformable bodies dedicated to the 100th anniversary from the birthday of A.A. Ilyushin Moscow, January 20–21, 2011. Kiyko, I. A., Brovko, G. L. & Vasin, R. A. (eds.). Moscow: Moscow University Press, p. 264-271 8 p.

    Research output: Contribution in Book/Report/ProceedingsPaper

  32. Published

    Kinetic theory of radiation reaction

    Noble, A., Jaroszynski, D., Gratus, J. & Burton, D. 2011 Central Laser Facility Annual Report 2010-2011. Central Laser Facility, 2 p.

    Research output: Contribution in Book/Report/ProceedingsChapter

  33. Published

    Kinetic treatment of radiation reaction effects

    Noble, A., Gratus, J., Burton, D., Ersfeld, B., Islam, M. R., Kravets, Y., Raj, G. & Jaroszynski, D. 2011 Laser acceleration of electrons, protons, and ions and medical applications of laser-generated secondary sources of radiation and particles. Leemans, W. P., Esarey, E., Hooker, S. M., Ledingham, K. W. D., Spohr, K. & McKenna, P. (eds.). BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING, p. - 6 p.

    Research output: Contribution in Book/Report/ProceedingsConference contribution

  34. 2010
  35. Published

    Mathematical physics activities at the Cockcroft Institute.

    Burton, D. A., Gratus, J., Perlick, V., Tucker, R. W., Christie, D. C., Goto, S., Hale, A., Noble, A., Walton, C., Canovan, C. E. S., Ferris, M., Gallego Torrome, R., Smith, J. D. A. & Wen, H. 04/2010 In : ICFA Beam Dynamics Newsletter. 51, p. 217-222 6 p.

    Research output: Contribution to journalJournal article

  36. Published

    Covariant constitutive relations, landau damping and non-stationary inhomogeneous plasmas

    Gratus, J. & Tucker, R. 2010 In : Progress In Electromagnetics Research M. 13, p. 145-156 11 p.

    Research output: Contribution to journalJournal article

  37. 2007
  38. Published

    New perspectives on the relevance of gravitation for the covariant description of electromagnetically polarizable media

    Dereli, T., Gratus, J. & Tucker, R. W. 25/05/2007 In : Journal of Physics -London- a Mathematical and General. 40, 21, p. 5695-5715 21 p.

    Research output: Contribution to journalJournal article

  39. Published

    Asymptotic analysis of ultra-relativistic charge

    Burton, D. A., Gratus, J. & Tucker, R. W. 03/2007 In : Annals of Physics. 322, 3, p. 599-630 32 p.

    Research output: Contribution to journalJournal article

  40. Published

    The covariant description of electromagnetically polarizable media

    Dereli, T., Gratus, J. & Tucker, R. W. 29/01/2007 In : Physics Letters A. 361, 3, p. 190-193 4 p.

    Research output: Contribution to journalJournal article

  41. Published

    Multiple currents in charged continua

    Burton, D. A., Gratus, J. & Tucker, R. W. 26/01/2007 In : Journal of Physics -London- a Mathematical and General. 40, 4, p. 811-829 19 p.

    Research output: Contribution to journalJournal article

  42. 2006
  43. Published

    A spatial view of information

    Gratus, J. & Porter, T. 12/11/2006 In : Theoretical Computer Science. 365, 3, p. 206-215 10 p.

    Research output: Contribution to journalJournal article

  44. Published

    Asymptotic analysis of ultra-relativistic charge

    Burton, D. A., Gratus, J. & Tucker, R. W. 2006 In : Proceedings of the 10th European Particle Accelerator Conference (EPA06).

    Research output: Contribution to journalJournal article

  45. Published

    The electrodynamics of charged continua.

    Burton, D. A., Gratus, J. & Tucker, R. W. 2006 In : Proceedings of workshop on global integrability of field theories applications. p. 155-169 15 p.

    Research output: Contribution to journalJournal article

  46. 2004
  47. Published

    A noncommutative geometric analysis of a sphere-torus topology change

    Gratus, J. 02/2004 In : Journal of Geometry and Physics. 49, 2, p. 156-175 20 p.

    Research output: Contribution to journalJournal article

  48. Published

    Hydrodynamic forces on two moving discs

    Burton, D. A., Gratus, J. & Tucker, R. W. 2004 In : Theoretical and Applied Mechanics. 31, 2, p. 153-187 35 p.

    Research output: Contribution to journalJournal article

  49. 2003
  50. Published

    An improved method of gravicraft propulsion.

    Gratus, J. & Tucker, R. 08/2003 In : Acta Astronautica. 53, 3, p. 161-172 12 p.

    Research output: Contribution to journalJournal article

  51. Published

    The dynamics of Cosserat nets

    Gratus, J. & Tucker, R. W. 2003 In : Journal of Applied Mathematics. 2003, 4, p. 187-226 40 p.

    Research output: Contribution to journalJournal article

  52. 2002
  53. Published

    Nets of one dimensional Cosserat continua

    Gratus, J. & Tucker, R. 2002 Proceedings of the fifth international seminar on geometry, continua and microstructures: September 26-28, 2001, Sinaia, Romania . Cleja-Tigoiu, S. & Tigoiu, V. (eds.). Bucharest: Editura Academiei Române

    Research output: Contribution in Book/Report/ProceedingsPaper

  54. 2001
  55. Published

    On the control of matter with gravity

    Wang, C., Burton, D., Gratus, J. & Tucker, R. 07/2001

    Research output: Contribution to conference Conference paper

  56. 2000
  57. Published

    A quantum geometric description of a q-brane with intrinsic spin

    Gratus, J. & Tucker, R. W. 06/2000 In : Nuclear Physics B - Proceedings Supplements. 88, 1-3, p. 349-354 6 p.

    Research output: Contribution to journalJournal article

  58. 1999
  59. Published

    'Wick rotations': The noncommutative hyperboloids and other surfaces of rotations

    Gratus, J. 01/1999 In : Letters in Mathematical Physics. 47, 2, p. 97-109 13 p.

    Research output: Contribution to journalJournal article

  60. 1998
  61. Published

    Noncommutative differential geometry, and the matrix representations of generalised algebras

    Gratus, J. 05/1998 In : Journal of Geometry and Physics. 25, 3-4, p. 227-244 18 p.

    Research output: Contribution to journalJournal article

  62. Published

    A natural basis for spinor and vector fields on the noncommutative sphere

    Gratus, J. 04/1998 In : Journal of Mathematical Physics. 39, 4, p. 2306-2324 19 p.

    Research output: Contribution to journalJournal article

  63. 1997
  64. Published

    A natural basis of states for the noncommutative sphere and its Moyal bracket

    Gratus, J. 08/1997 In : Journal of Mathematical Physics. 38, 8, p. 4283-4300 18 p.

    Research output: Contribution to journalJournal article

  65. 1996
  66. Published

    Classical and quantum implications of the causality structure of two-dimensional space-times with degenerate metrics

    Gratus, J. & Tucker, R. 1996 In : Journal of Mathematical Physics. 37, 12, p. 6018-6032 14 p.

    Research output: Contribution to journalJournal article

  67. 1995
  68. Published

    Topology change and the propagation of massless fields

    GRATUS, J. & Tucker, R. 07/1995 In : Journal of Mathematical Physics. 36, 7, p. 3353-3376 24 p.

    Research output: Contribution to journalJournal article

  69. 1994
  70. Published

    Quantum-mechanics on graphs

    GRATUS, J., Lambert, C., Robinson, S. & Tucker, R. 21/10/1994 In : Journal of Physics -London- a Mathematical and General. 27, 20, p. 6881-6892 12 p.

    Research output: Contribution to journalJournal article

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