Spinodal instabilities in asymmetric nuclear matter

Date

2015-09-14

Author

Çakırça, Fatma
Yılmaz, Osman
Ayık, S

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https://hdl.handle.net/11511/79719

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Spinodal instabilities in nuclear matter in a stochastic relativistic mean-field approach Ayik, S.; Yılmaz Tüzün, Özgül; Er, N.; Gokalp, A.; Ring, P. (American Physical Society (APS), 2009-09-01) Spinodal instabilities and early growth of baryon density fluctuations in symmetric nuclear matter are investigated in the basis of the stochastic extension of the relativistic mean-field approach in the semiclassical approximation. Calculations are compared with the results of nonrelativistic calculations based on Skyrme-type effective interactions under similar conditions. A qualitative difference appears in the unstable response of the system: the system exhibits most unstable behavior at higher baryon d...
Spinodal instabilities in symmetric nuclear matter within a nonlinear relativistic mean-field approach Acar, Fatma; Yılmaz, Osman; Department of Physics (2011) Spinodal instability mechanism and early development of density fluctuations for symmetric nuclear matter at finite temperature are studied. A stochastic extension of Walecka-type relativistic mean-field model including non-linear self-interactions of scalar mesons with NL3 parameter set is employed in the semi-classical approximation. The growth rates of unstable collective modes are investigated below the normal density and at low temperatures. The system exhibits most unstable behavior in longer wave len...
Spinodal instabilities in symmetric nuclear matter within a density-dependent relativistic mean-field approach Danışman, Betül; Yılmaz, Osman; Department of Physics (2011) The nuclear matter liquid-gas phase transition is expected to be a signal of nuclear spinodal instabilities as a result of density fluctuations. Nuclear spinodal instabilities in symmetric nuclear matter are studied within a stochastic relativistic density-dependent model in semi-classical approximation. We use two parameterization for the Lagrange density, DDME1 and TW sets. The early growth of density fluctuations is investigated by employing relativistic Vlasov equation based on QHD and discussed the clu...
Spinodal instabilities and properties of unstable modes in asymmetric nuclear matter Saatci, Selen; Çakırça, Fatma; Yılmaz, Osman; Ayık, S; Gökalp, Ahmet (null; 2015-08-30)
Spinor boson droplets stabilized by spin fluctuations Yoğurt, Taha Alper; Keleş, Ahmet; Oktel, M. Ö. (2022-04-01) Self-trapped droplets stabilized by quantum fluctuations have been experimentally realized in dipolar gases and binary boson mixtures. In this paper, we propose spinor Bose gases as another candidate for droplet formation. For spin-1 gas, we find that spin fluctuations give a dilute but self-trapped state for two different order parameters where the mean-field picture predicts collapse. A polar droplet phase can be stabilized by spin fluctuations for both antiferromagnetic and ferromagnetic spin-dependent c...

Citation Formats

F. Çakırça, O. Yılmaz, and S. Ayık, “Spinodal instabilities in asymmetric nuclear matter,” 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/79719.