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dc.contributor.authorLi, Yuting I
dc.contributor.authorCates, Michael E
dc.date.accessioned2020-07-06T23:31:10Z
dc.date.available2020-07-06T23:31:10Z
dc.date.issued2020-05
dc.identifier.issn1742-5468
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/307670
dc.description.abstractMaterials undergoing both phase separation and chemical reactions (defined here as all processes that change particle type or number) form an important class of non-equilibrium systems. Examples range from suspensions of self-propelled bacteria with birth–death dynamics, to bio-molecular condensates, or 'membraneless organelles', within cells. In contrast to their passive counterparts, such systems have conserved and non-conserved dynamics that do not, in general, derive from a shared free energy. This mismatch breaks time-reversal symmetry and leads to new types of dynamical competition that are absent in or near equilibrium. We construct a canonical scalar field theory to describe such systems, with conserved and non-conserved dynamics obeying model B and model A, respectively (in the Hohenberg–Halperin classification), chosen such that the two free energies involved are incompatible. The resulting minimal model is shown to capture the various phenomenologies reported previously for more complicated models with the same physical ingredients, including microphase separation, limit cycles and droplet splitting. We find a low-dimensional subspace of parameters for which time-reversal symmetry is accidentally recovered, and show that here the dynamics of the order parameter field (but not its conserved current) is exactly the same as an equilibrium system in which microphase separation is caused by long-range attractive interactions.
dc.publisherInstitute of Physics Publishing
dc.rightsAll rights reserved
dc.titleNon-equilibrium phase separation with reactions: a canonical model and its behaviour
dc.typeArticle
prism.issueIdentifier5
prism.numberARTN 053206
prism.publicationDate2020
prism.publicationNameJournal of Statistical Mechanics: Theory and Experiment
prism.volume2020
dc.identifier.doi10.17863/CAM.54763
dcterms.dateAccepted2020-02-20
rioxxterms.versionofrecord10.1088/1742-5468/ab7e2d
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2020-05
dc.contributor.orcidCates, Michael [0000-0002-5922-7731]
dc.identifier.eissn1742-5468
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (740269)
pubs.funder-project-idRoyal Society (RP170002)
cam.issuedOnline2020-05-27
cam.orpheus.successMon Jul 13 08:26:50 BST 2020 - Embargo updated
rioxxterms.freetoread.startdate2021-05-01


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