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Work experience:

• 14.1.2008- currently Assistant Professor in NORDITA (guest professor at KTH)
  
• 1.8.2005-14.1.2008 Academy research fellow (Division of Theoretical Physics, Department of Physical Sciences, University of Helsinki)
  
• 1.8.2004-31.7.2005 Postdoc (Department of Physics, NanoScience Center, University of Jyväskylä)
  
• 1.7.2002 -31.7.2004   Postdoc (FOM/ITP University of Utrecht)
• 1.1.2002 - 30.6.2002  Researcher (University of Turku and Helsinki Institute of Physics)
• 1.1. 1998 - 31.12.2001 Graduate Student at Helsinki Institute of Physics
• 1999  assistant teacher on the course Mathematical Methods in Physics 1,  Department of Physics, University of Helsinki.
• 15.5. - 31.12.1997 research assistant at Helsinki Institute of Physics
• 1.6. - 1.9.1996  research assistant at diamond coating laboratory, Department of Physics, University of Helsinki. 
  

Publications:

Articles in peer reviewed journals:

1. A. Collin, J. Larson, and J.-P. Martikainen, "Quantum states of p-band bosons in optical lattices", Phys. Rev. A 81, 023605 (2010).
2. A. Collin, J.-P. Martikainen, and J. Larson, "Dynamical quantum phase transition of a two-component Bose-Einstein condensate in an optical lattice", Phys. Rev. A 81, 013603 (2009).
3. J.-P. Martikainen, J. Kinnunen, P. Törmä, and C. J. Pethick, "Induced interactions and the superfluid transition temperature in a three-component Fermi gas",Phys. Rev. Lett. 103,260403 (2009).
4. J. Larson and J.-P. Martikainen, "Coupling internal atomic states in a two-component Bose-Einstein condensate via an optical lattice: Extended Mott-superfluid transitions", Phys. Rev. A. 80, 033605 (2009).
5. D.-H.  Kim, P. Törmä, J.-P. Martikainen, "Induced interactions for ultra-cold Fermi gases in optical lattices", Phys. Rev. Lett. 102,245301 (2009).
   
6. J. Larson, A. Collin, and J.-P. Martikainen, "Multiband bosons in optical lattices", Phys. Rev. A 79, 033603 (2009).
7. J. Larson and J.-P. Martikainen, " Coupled two-component atomic gas in an optical lattice", Phys. Rev. A 78, 063618 (2008).
8. J.-P. Martikainen, "Cooper problem in a lattice", Physical Review A, 78, 035602 (2008).
9. J.-P. Martikainen, E. Lundh, and T. Paananen, "Interband physics in an ultra-cold Fermi gas in an optical lattice", Physical Review A, 78, 023607 (2008).
10. T. K. Koponen, T. Paananen, J.-P. Martikainen,  M. R. Bakhtiari, and  P. Törmä, "FFLO state in 1, 2, and 3 dimensional optical lattices combined with a non-uniform background potential", New J. Phys. 10, 045104 (2008).
    
11. T. Paananen, T. K. Koponen,  P. Törmä, and J.-P. Martikainen, "Noise correlations of the ultracold Fermi gas in an optical lattice", Physical Review A, 77, 053602 (2008).
12. T. K. Koponen, T. Paananen, J-P. Martikainen, and P. Törmä, "Finite temperature phase diagram of a polarized Fermi
    gas in an optical lattice",  Phys. Rev. Lett. 99, 120403 (2007).
13. T. Paananen,  P. Törmä, and J-P. Martikainen, " Co-existence and shell structures of several superfluids in trapped three-component Fermi mixtures", Physical Review A, 75, 023622 (2007).
14. T. Koponen,  J. Kinnunen, J.-P. Martikainen, L. M. Jensen, and P. Törmä, "Fermion pairing with spin-density imbalance in an optical lattice", New J. Phys. 8, 179 (2006).
    
15. J.-P. Martikainen, "Ultracold polarized Fermi gas at intermediate temperature", Physical Review A, 74, 013602 (2006)
    
16. T. Paananen, J.-P. Martikainen,  and P. Törmä, "Pairing in a three component Fermi gas", Physical Review A 73, 053606 (2006).
17. T. Koponen, J.-P. Martikainen, J. Kinnunen, and P. Törmä, "Sound velocity and dimensional crossover in a superfluid Fermi gas in an  optical lattice", Physical Review A 73, 033620 (2006).
18. J.-P. Martikainen and P. Törmä, "Quasi two-dimensional superfluid Fermi gases", Phys. Rev. Lett. 95, 170407 (2005).
19. J.-P. Martikainen and H. T. C. Stoof, "Vortex-line solitons in a periodically modulated Bose gas", Phys. Rev. Lett. 93, 070402 (2004).
    
20. J.-P. Martikainen and H. T. C. Stoof, "Spontaneous squeezing of a vortex in an optical lattice", Physical Review A 70, 013604 (2004).
    
21. J.-P. Martikainen H. T. C. Stoof, "Quantum theory of a vortex line in an optical lattice",Physical Review A 69, 053617 (2004).
    
22. J.-P. Martikainen and H. T. C. Stoof, "Longitudinal sound mode of a Bose-Einstein condensate in an optical lattice", Physical Review A 69, 023608 (2004).
    
23. J.-P. Martikainen and H. T. C. Stoof, "Quantum fluctuations of a Vortex in an Optical Lattice", Phys. Rev. Lett. 91, 240403 (2003).
    
24. J.-P. Martikainen and H. T. C. Stoof, "Excitations of a Bose-Einstein condensate in a one-dimensional lattice", Physical Review A 68, 013610 (2003).
    
25. E. Lundh, J.-.P. Martikainen, and K.-A. Suominen, "Vortex nucleation in Bose-Einstein condensates in time-dependent traps", Physical Review A 67, 063604 (2003).
    
26. J.-P. Martikainen, A. Collin, and K.-A. Suominen,"Coreless vortex ground state of the rotating spinor condensate", Physical Review A 66, 053604 (2002).
27. J.-P. Martikainen, A. Collin, and K.-A. Suominen,"Creation of a monopole in a spinor condensate",  Phys. Rev. Lett. 88, 090404 (2002).
28. J.-P. Martikainen, K.-A. Suominen, L. Santos, T. Schulte, and A. Sanpera, "Generation and evolution of vortex-antivortex pairs in Bose-Einstein condensate", Physical Review A 64, 063602 (2001).
29. J.-P. Martikainen and K.-A. Suominen, "Collective excitations in a F=2 Bose-Einstein condensate", Journal of Physics B 34, 4091 (2001).
30. J.-P. Martikainen, Matt Mackie, and K.-A. Suominen, "Comment on ``Bose-Einstein condensation with magnetic dipole-dipole forces", Physical Review A 64,  037601 (2001).
31. J.-P. Martikainen, "Bose condensation in shallow traps", Physical Review A 63,  043602 (2001).
32. J.-P. Martikainen and K.-A. Suominen, "Validity of the Landau-Zener model for output coupling of Bose condensates", Physical Review A 60, 4175 (1999).

Preprints:

• J. Larson and J.-P. Martikainen, "Ultracold atoms in a cavity mediated double-well system",arXiv:1006.3258.
  
• J. Larson, J.-P. Martikainen, A. Collin, E. Sjöqvist, "Spin Hall effect of a Bose-Einstein condensate in a tilted optical lattice", arXiv:1001.2527.