Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session N00: Poster Session II (11am-2pm PST)
11:00 AM,
Wednesday, March 8, 2023
Room: Exhibit Hall (Forum Ballroom)
Sponsoring
Unit:
APS
Abstract: N00.00251 : Progress in Quasihydrodynamics*
Presenter:
Daniel K Brattan
(École Polytechnique)
Authors:
Daniel K Brattan
(École Polytechnique)
Andrea Amoretti
(University of Genova)
Ioannis Matthaiakakis
(INFN - Sezione di Genova)
Luca Martinoia
(INFN - Sezione di Genova)
Spurred by discoveries in high energy physics (in particular gauge-gravity dualities), there has been much recent work in understanding and obtaining the formal structure of hydrodynamic constitutive relations. For example, it is now understood how to obtain dissipative constitutive relations from a variational principle via the “Schwinger-Keldysh” formalism. Moreover, this programme has led to the development of hydrodynamic descriptions for some rather exotic states of matter (such as strange metals, Weyl semi-metals etc.).
A sister theory to hydrodynamics is quasihydrodynamics. This represents a modification of hydrodynamics where energy, momentum and particle number are no longer conserved, but decay very slowly. Quasihydrodynamics is much less well understood, but is necessary if hydrodynamics is to be a good description of certain exotic states of matter.
In this poster I will review the progress that has been made into understanding the structure of quasihydrodynamics. I will summarise recent work and indicate where open questions remain.
*This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie grant agreement No. 101030915.
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