Document Type
Article
Publication Date
2-22-2024
Abstract
We study the stability against thermal phonon fluctuations of the magnetic dual chiral density wave (MDCDW) phase, an inhomogeneous phase arising in cold, dense QCD in a magnetic field. Following a recent study that demonstrated the absence of the Landau-Peierls (LP) instability from this phase, we calculate the (threshold) temperature at which the phonon fluctuations wash out the long-range order over a range of magnetic fields and densities relevant to astrophysical applications. Using a high-order Ginzburg-Landau expansion, we find that the threshold temperature is very near the critical temperature for fields of order 10 18 G and still a sizable fraction of the critical temperature for fields of order 10 17 G . Therefore, at sufficiently large magnetic fields, the long-range order of the MDCDW phase is preserved over most of the parameter space where the condensate is energetically favored; at smaller magnetic fields, the long-range order is still maintained over a considerable region of parameter space relevant to compact stars.
Recommended Citation
Ferrer, Efrain J., William Gyory, and Vivian de la Incera. "Thermal phonon fluctuations and stability of the magnetic dual chiral density wave phase in dense QCD." Physical Review D 109, no. 3 (2024): 036023. https://doi.org/10.1103/PhysRevD.109.036023
Publication Title
Physical Review D
DOI
10.1103/PhysRevD.109.036023
Comments
© 2024 American Physical Society. Original published version available at https://doi.org/10.1103/PhysRevD.109.036023