Magnetic oscillations in the Nambu-Jona-Lasinio model

Ebert, D.; Klimenko, K. G.
March 2000
AIP Conference Proceedings;2000, Vol. 508 Issue 1, p253
Academic Journal
The phase structure of a simple Nambu-Jona-Lasinio model has been investigated at non-zero values of μ and H, where H is an external magnetic field and μ is the chemical potential. On this basis magnetic oscillations effects were considered. It was shown that there are standard (periodic) van Alphen-de Haas magnetic oscillations of some thermodynamical quantities, including magnetization, pressure and particle density in the NJL system. Besides, we have found non-standard, i.e. non-periodic, magnetic oscillations, since the frequency of oscillations is a H-dependent quantity. Finally, there arises an oscillating behavior not only for thermodynamical quantities, but also for a dynamical quantity like the quark mass. © 2000 American Institute of Physics.


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