Abbasi | Kaminski | Tavakol Physical Review Letter published. Dropping droplets of ink into a glass of clear water, everyone can observe the effect of classical diffusion spreading the ink until, eventually, it is uniformly distributed. However, pushing this phenomenon into the quantum statistical regime considering a quantum fluid instead of water, brings about a host of non-intuitive effects. This theoretical realization has implications on experiments with ultracold gases as well as heavy ion collisions. For example, the data from a recent experiment [P. T. Brown et al, Science 363, 379 (2019), arXiv:1802.09456] displaying peculiar behavior, a so-called “bad metal” which has a resistivity proportional to the temperature, is re-analyzed and found to be consistent with the theory constructed in our Letter. More specifically, diffusion is modified by non-linear self-interactions and by a necessary regulator time scale within the effective field theory of diffusive fluctuations constructed in our Letter. Note added: Recently, three papers very relevant to this topic appeared, namely [Kovtun/Jain (2023)], [Mullins, Hippert, Gavassino, Noronha, PRD (2023)], [Gavassino, Abboud, Speranza, Noronha, PRD (2024)]. |
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Cartwright| Garbiso-Amano | Kaminski | Knipfer
Back at Bama / Preprints and Publications. After one year away Kaminski is back in Tuscaloosa. Recent preprints include one on chaos and pole-skipping from rotating black holes, now published in the Journal of High Energy Physics, which was written with his former PhD students, now postdocs Cartwright and Garbiso-Amano) as well as one on Ultraviolet-regulated theory of non-linear diffusion. Earlier last year, Kaminski and his current PhD student Marco Knipfer released a preprint on Hydrodynamic attractors for the speed of sound in holographic Bjorken flow together with Cartwright. This work is now published in Physical Review D (PRD). ![]() Relocations to Europe. Our former PhD student Casey Cartwright successfully defended his thesis and moved to Europe this Fall. Casey received several offers for postdoc positions and decided to join Utrecht University. This makes Casey our second PhD student moving directly on to a postdoc position after Dr. Markus Garbiso Amano who graduated in 2021. Meanwhile, Europe also serves as a temporary harbor for Matthias Kaminski who is spending his sabbatical at Wuerzburg University, Germany. ![]() Amano-Garbiso | Cartwright | Kaminski In a recent preprint PhD student Casey Cartwright and Dr. Kaminski explore a direction new for the group with a surprising result: inverted c-functions in thermal states calculated from entanglement entropy [arXiv:2107.12409]. Also new for Dr. Kaminski is the construction of hydrodynamics including spin angular momentum [arXiv:2107.14231] with Hongo Huang Stephanov and Yee. Although this is related to earlier research with his former PhD student now postdoc Markus Amano Garbiso [view publication in JHEP]. Garbiso | Kaminski
Another paper was accepted by JHEP within this month. After the paper with PhD student Casey Cartwright, also PhD student Markus Garbiso's work with Dr. Kaminski has been accepted for publication by JHEP (impact factor from 2018 is 5.833). The paper with Casey is by now published and can be found here: Correlations far from equilibrium in charged strongly coupled fluids subjected to a strong magnetic field PhD student Casey Cartwright and group leader Dr. Kaminski get peer-reviewed article published8/28/2019 ![]() Cartwright | Kaminski Casey Cartwright, PhD student in our group, has gotten his his first paper accepted with his research advisor, Dr. Kaminski. In fact, this was not Casey's first article. He had written two articles while obtaining his master's degree at the Colorado School of Mines. The recently accepted article will appear in the peer-reviewed Journal of High Energy Physics, JHEP (impact factor from 2018: 5.833). The preprint can be found here. The published version will be out soon, so stay tuned ... . Published by JHEP: Our universal magnetoresponse paper in collaboration with lattice gauge theorists11/7/2018 ![]() Kaminski | Wu Our group members Dr. Kaminski and Dr. Wu have recently published a paper in collaboration with lattice gauge theorists Dr. Gergely Endrodi (Frankfurt) and Prof. Dr. Andreas Schafer (Regensburg), as well as Laurence Yaffe (Seattle). In that work, a universal conformal scaling is discovered in lattice data derived from QCD. More details in the publication.
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May 2024
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