Homepage of

Usama Al Khawaja

APS arxiv google UAEU

My address:

  • Physics Department,

  • College of Science,P.O.Box17551,

  • United Arab Emirates University (UAEU),

  • Al-Ain, UAE.

  • email: u.alkhawaja@uaeu.ac.ae

    phone: (+9713)7136335

    My CV (Sept. 12, 2011)

    Ring-String soliton molecule

    rotating in a 2D harmonic trap

    Postdoc vacancy

  • Teaching
  • Research interests:

    1. Bose-Einstein condensation

    2. Integrability and exact solutions

    3. Soliton molecules and their applications in optical fibers

    4. Tridiagonal (J-matrix) method

    5. Superconductivity

    Brief description of my research interests.











    Soliton molecule scattered by a potential wall


    Collision of two ring solitons


    Lattice of out-of-phase solitons


    Lattice of in-phase solitons. Notice the size is oscillating between 6x6 and 5x5 solitons.


    Recent publications (complete list in my CV):

    1.    Formation of Matter-Wave Soliton Molecules,

          U. Al Khawaja and H.T.C. Stoof

                New J. Phys. 13, 085003 (2011). arXiv:1012.3762


    2.    Scattering of a matter-wave single soliton and two-soliton molecule by an attractive potential,
                S. M. Al-Marzoug, S. M. Al-Amoudi, U. Al Khawaja, H. B. Bahlouli, and B. B. Baizakov,
                Phys. Rev. E 83, 026603 (2011).


    3.    Spontaneous formation and resonant scattering of soliton molecules,

          U. Al Khawaja, S. M. Al-Marzoug, and H. Bahlouli,

          J. Phys. B: At. Mol. Opt. Phys. 44, 115304 (2011).


    4.    Stability and dynamics of two-soliton molecules,

          U. Al Khawaja,

                    Phys. Rev. E 81, 056603 (2010). arXiv:1004.3000


    5.    A comparative analysis of Painlev? Lax Pair, and Similarity Transformation methods

                in obtaining the integrability conditions of nonlinear Schr?inger equations,

          U. Al Khawaja,

          J. Math. Phys. 51, 053506 (2010). arXiv:1004.3001

                    (Top 20 Most Downloaded, May 2010, http://jmp.aip.org/features/most_downloaded?month=5&year=2010)



    1. Theoretical Physics group at King Fahd University for Petroleum and Minerals (KFUPM)/Saudi Arabia and the Saudi Center for Theoretical Physics: Abdulaziz Al-Haidari, Hocine Bahlouli, Ibrahem Naser, Mohammad Abdulmonem, Saeed Al-Amoudi, Saeed Al-Marzoug, Jasem Al-Alawi, and Ahmed Bouketir.

    2. H.T.C. Stoof from the Institute for Theoretical Physics at Utrecht University/ The Netherlands.

    3. B. Baizakov from Physical-Technical Institute in Tashkent/Uzbekistan.


    Research Grants:

    1. National Research Foundation (NRF) research grants (2011)

    Collaborators: Usama Al Khawaja.

    Title: Using solitons and soliton molecules as data carriers to increase the bit rate of optical telecommunications                              

    Amount: 750,000.00 AED (250,000 AED per year)

    Duration: Fall 2011-Fall 2014 (3 years).

    Status: Accepted for funding. To start Sept. 2011.

    2. A Joint Project with King Fahd University for Petroleum and Minerals/Saudi Arabia

    Title: Stability, dynamics, and applications of two- and multi- soliton molecules

    Collaborators: Saeed Al-Marzoug1, Saeed Al-Amoudi1, Hocine Bahlouli1, Ahmed Bouketir1, Usama Al Khawaja2, Bakhtiyor Baizakov3,

         1 Physics Department, King Fahd University for Petroleum and Minerals.

         2 Physics Department, UAEU.

         3 Physical-technical Institute, Uzbek Academy of Science.

    Duration: Jan 2011-Jan 2013 (2 years).

    Amount: 236,300.00   Saudi Riyals. (Two hundred thirty six thousands and three hundred)

    Status: running.

    Spin texture of a skyrmion in a spin-1 Ferromagnetic Bose-Einstein condensate: (Blue is +1 and pink is -1)

    See also Phys. Rev. A 64, 043612 (2001). cond-mat/0107302.

    Spin texture of a skyrmion in a spin-1/2 Ferromagnetic Bose-Einstein condensate: (Blue is +1/2 and pink is -1/2)

    See also Nature 411, 918 (2001). cond-mat/0011471.

    The 'et Hooft-Polyakov monopole in an anti ferromagnetic BEC: 

    See also Phys. Rev. Lett. 87, 120407 (2001). cond-mat/0103194.

    Some BEC links:

    Henk Stoof/Utrecht
    BEC on line bibliography
    Bose-Einstein Condensation BibTeX Website at JILA
    Ketterle's group at MIT
    Keith Burnett, Oxford group
    Oxford experimental BEC group
    Innsbruck - Quantum Optics group
    Research groups working with atom traps

    See my first JAVA Applets

    1. Refraction

    2. Ising model