Kalman Varga

Biographical sketch

Research interest

Solution of few-body problems in atomic, nuclear, subnuclear and solid state physics with the stochastic variational method. (Details are in our book which is in press: "Stochastic variational approach to quantum mechanical few-body problems", Y. Suzuki and K. Varga, Springer-Verlag (Berlin Heidelberg). See also:talk(postscript)

Selected recent papers

  1. Stochastic variational approach to quantum mechanical few-body problems
    Y. Suzuki, K. Varga
    (book) Springer-Verlag, (Berlin Heidelberg), 1998.
  2. Multipositronic systems
    K. Varga
    Phys. Rev. Lett. 83, 5471 (1999)
  3. Second Bound State of the Positronium Molecule and Biexcitons
    K. Varga, J. Usukura, and Y. Suzuki
    Phys. Rev. Lett. 80, 1876 (1998)
  4. Microscopic theory of cluster radioactivity
    R.G. Lovas, R.J. Liotta, A. Insolia, K. Varga and D.S. Delion
    Physics Reports 294, 265 (1998)
  5. Effective Q-Q interactions in constituent quark models
    L. Ya. Glozman, Z. Papp, W. Plessas, K. Varga, and R. F. Wagenbrunn
    Phys. Rev. C 57, 3406 (1998)
  6. Unified description of light- and strange-baryon spectra
    L.Ya.Glozman, W. Plessas, K. Varga, R.F. Wagenbrunn
    Phys. Rev. D58, 094930 (1998)
  7. Are there any diquark clustering in the nucleon?
    L. Ya. Glozman and K. Varga
    Phys. Rev. D. in press.
  8. Gambling in physics: Applications of the stochastic variational method
    K. Varga and Y. Suzuki, Few-body Systems Suppl., in press.
  9. New description of orbital motion with arbitrary angular momenta
    Y. Suzuki, J. Usukura, and K. Varga
    1998 J. Phys. B: At. Mol. Opt. Phys. 31 31-48.
  10. Global vector representation of angular motion of few-particle systems
    K. Varga, Y. Suzuki, and J. Usukura
    Few-Body Systems 24, 81 (1998).
  11. Stochastic variational methods in few-body systems
    Y. Suzuki, K. Varga and J. Usukura
    Nucl. Phys. A631, 91 (1998)
  12. Isospin mass splittings of baryons in potential models
    M. Genovese, J.-M. Richard, B. Silvestre-Brac, and K. Varga
    Phys. Rev. D59 014012.
  13. The stability of the ground state for positronic sodium
    G. Ryzhikh, J. Mitroy and K. Varga
    1998 J. Phys. B: At. Mol. Opt. Phys. 31 L265
  14. Comment on ''Two-dimensional charged-biexciton complexes''
    K. Varga
    Phys. Rev. B57 13305 (1998).
  15. Binding energy of localized biexcitons in quantum wells
    C. Riva, F. M. Peeters, V. A. Schweigert and K. Varga
    Physica Status Solidi B Vol 210, (1999)
  16. Charged excitons in quantum wells
    C. Riva, K. Varga and F. M. Peeters
    to appear in Phys. Stat. Sol. B
  17. Stability of two and three dimensional excitonic complexes,
    J. Usukura, Y. Suzuki and K. Varga, Phys. Rev. B59,5652 (1999).
  18. Excitation spectra of light and strange baryons
    L.Ya. Glozman, Z. Papp, W. Plessas, K. Varga, and R. F. Wagenbrunn
    Proceedings of the Conference on Perspectives in Hadronic Physics, Trieste, 1997. Ed. by S. Boffi, C. Ciofi degli Atti, and M. Giannini, World Scientific, Singapore, 1998.
  19. Light and strange baryons in a chiral quark model with Goldstone-boson-exchange interactions
    L. Ya. Glozman, W. Plessas, K. Varga and R. F. Wagenbrunn
    Nucl. Phys. A631, 469c (1998)
  20. The structure of exotic atoms containing positrons and positronium
    G. Ryzhikh, J. Mitroy and K. Varga
    1998 J. Phys. B: At. Mol. Opt. Phys. 31 3965.
  21. Applications of the stochastic variational method
    K. Varga and Y. Suzuki,
    Innovative Computational Methods in Nuclear Many-Body Problems, ed. by H. Horiuchi et. al., World Scientific, 1998.
  22. Signature of the existence of the positronium molecule
    K. Varga, J. Usukura, and Y. Suzuki, Phys. Rev. A58 1918 (1998)
  23. Low-energy alpha+6 He elastic scattering with the resonating-group method
    K. Fujimura, D. Baye, P. Descouvemont, Y. Suzuki and K. Varga
    Phys. Rev. C59, 817 (1999).
  24. Stochastic variational method for light unstable nuclei Y. Suzuki, N. Tanaka and K. Varga
    Journal of physics G24 1491 (1998)
  25. Recent applications of the stochastic variational method
    K. Varga, J. Usukura, Y. Suzuki
    Few-body systems Supplement 10, 11 (1999).
  26. Describing the Nucleon Electromagnetic Form Factors at High Momentum Transfers
    L. Theussl, B. Desplanques, B. Silvestre-Brac and K. Varga
    Proceedings of the 16th Europian Conference on Few-body Problems in Physics, Few-body systems Supplement 10 , 403 (1999).
  27. Hadronic Decays of Light and Strange Baryon Resonances in the GBE Constituent-Quark Model
    A. Krassnigg, W. Plessas, L. Theussl, K. Varga, R.F. Wagenbrunn
    Proceedings of the 16th Europian Conference on Few-body Problems in Physics, Few-body systems Supplement 10 , 391 (1999).
  28. Hadronic Decays of Baryon Resonances in the Goldstone-Boson-Exchange Constituent-Quark Model
    W. Plessas, A. Krassnigg, L. Theussl, K. Varga, R.F. Wagenbrunn, Proceedings of the Joint ECT/TJNAF Workshop on N$\star$ Physics and Nonperturbative QCD, Trento, 1998, Few-body Physics Supplement, 11 (1999).
  29. Goldstone-Boson-Exchange Dynamics in the Constituent-Quark Model for Baryons
    R.F. Wagenbrunn, L.Ya. Glozman, W. Plessas, K. Varga
    Proceedings of the Joint ECT/TJNAF Workshop on N$\star$ Physics and Nonperturbative QCD, Trento, 1998, Few-body Physics Supplement, 11, (1999).
  30. Chiral Constituent-Quark Model for Baryons
    R.F. Wagenbrunn, L.Ya. Glozman, W. Plessas, K. Varga
    Proceedings of the 16th Europian Conference on Few-body Problems in Physics, Few-body systems Supplement 10, 387 (1999) .
  31. Unbound states by analytic continuation in the coupling constant, N. Tanaka, Y. Suzuki, K. Varga and R. G. Lovas, Phys. Rev. C59, 1391 (1999).
  32. Baryon excitation spectra and hadronic decays of resonances in a semirelativistic chiral quark model
    L. Ya. Glozman, W. Plessas, L. Theussl, K. Varga, and R.F. Wagenbrunn
    Proceedings of the 4th $N^\ast$ Workshop, Washington, DC, 1997., piN Newsletter 14, 99 (1998)
  33. The stochastic variational method, K. Varga and Y. Suzuki, in Microscopic Approaches to the Structure of Light Nuclei, ed. by R. Bishop and N. Wallet, World Scientific.
  34. Structure of light unstable nuclei in a microscopic multicluster approximation, K. Arai, Y. Ogawa, Y. Suzuki and K. Varga, to appear in the Supplement of Progress of Theoretical Physics.
  35. Non-mean-field Variational Description of Light Nuclei and Baryons
    R. G. Lovas, K. Varga and Y. Suzuki
    Workshop on electron nucleus scattering, Eds. O. Benhar, A. Fabrocini, and R. Schiavilla, (1999)
  36. Reply to `Comment on "Effective Q-Q interactions in constituent quark models" '
    L. Ya. Glozman, Z. Papp, W. Plessas, K. Varga, and R. F. Wagenbrunn
    Phys. Rev. C61 019804 (2000)
  37. Microscopic four-cluster description of 10Be and 10C
    with the stochastic variational method Y. Ogawa, K. Arai, Y. Suzuki and K. Varga
    Nucl. Phys. A, in press.
  38. Excitons and charged excitons in semiconductor quantum wells
    C. Riva, F. M. Peeters and K. Varga, Phys. Rev. B, in press.
  39. Local properties of the wave function in the correlated hyperspherical harmonics and the stochastic variational method, R. Krivec, V. B. Mandelzweig and K. Varga, Phys. Rev. A, in press.

    Submitted for publication

  40. R. G. Lovas, K. Varga and Y. Suzuki, Few-Cluster Description of Neutron-Halo Nuclei
  41. Borromean binding of three or four bosons
    S. Moskowski, S. Fleck, A. Krikeb, L. Theussl, J-M. Richard and K. Varga, submitted for publication.
  42. Local realization of the contact interaction: two- and three-body problems
    A. T. Kruppa, K. Varga and J. Revai, submitted for publication.

Selected previous papers

3D plots

Theoretical Physics