Academic Journal
Electrical conductivity of the quark-gluon plasma in the presence of strong magnetic fields
| Τίτλος: | Electrical conductivity of the quark-gluon plasma in the presence of strong magnetic fields |
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| Συγγραφείς: | Giorgio Almirante, Nikita Astrakhantsev, V. V. Braguta, Massimo D’Elia, Lorenzo Maio, Manuel Naviglio, Francesco Sanfilippo, Anton Trunin |
| Συνεισφορές: | HEP, INSPIRE, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique Théorique - UMR 7332 (CPT), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
| Πηγή: | Physical Review |
| Publication Status: | Preprint |
| Στοιχεία εκδότη: | American Physical Society (APS), 2025. |
| Έτος έκδοσης: | 2025 |
| Θεματικοί όροι: | numerical calculations, Monte Carlo, magnetic field, chiral, deconfinement, magnetic, FOS: Physical sciences, magnetic field, [PHYS.HLAT] Physics [physics]/High Energy Physics - Lattice [hep-lat], GeV, Euclidean, 7. Clean energy, High Energy Physics - Lattice, High Energy Physics - Phenomenology (hep-ph), quantum chromodynamics, quark gluon, plasma, correlation function, continuum limit, numerical calculations, Monte Carlo, enhancement, quark gluon, plasma, lattice, effect, [PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat], High Energy Physics - Lattice (hep-lat), Laplace, temperature, high, suppression, effect, magnetic, chiral, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, background field, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], magnetic field, high, staggered, conductivity |
| Περιγραφή: | We compute the electrical conductivity of the strongly interacting medium in the presence of strong magnetic background fields, eB=4, 9 GeV2, and for different values of the temperature, both in the confined and in the deconfined quark-gluon plasma (QGP) phase. The conductivity is obtained from the Euclidean lattice time correlator of the electrical current, computed on gauge configurations sampled from Monte-Carlo simulations of an improved staggered discretization of Nf=2+1 QCD. We perform the inverse Laplace transform of the correlator adopting a recently proposed version of the standard Backus-Gilbert procedure for the inversion. The results obtained in the QGP phase show a sizable enhancement of the conductivity in the direction parallel to the magnetic field, as well as a suppression in the direction orthogonal to it. The enhancement can interpreted through various different mechanisms, typically involving the chiral anomaly, among which the chiral magnetic effect (CME): for this reason we try to interpret our observations based on a CME-inspired , we extract the relaxation time of this process, extrapolate it to the continuum limit and compare it to previous results, finding it lower than expected in the explored range of temperatures. |
| Τύπος εγγράφου: | Article |
| Γλώσσα: | English |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.111.034505 |
| DOI: | 10.48550/arxiv.2406.18504 |
| Σύνδεσμος πρόσβασης: | http://arxiv.org/abs/2406.18504 https://hal.science/hal-04641794v1 https://doi.org/10.1103/physrevd.111.034505 |
| Rights: | CC BY arXiv Non-Exclusive Distribution |
| Αριθμός Καταχώρησης: | edsair.doi.dedup.....ffa6d016f90d32a9dac76af230d2b5f0 |
| Βάση Δεδομένων: | OpenAIRE |
| ISSN: | 24700029 24700010 |
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| DOI: | 10.1103/physrevd.111.034505 |