Intrinsic free energy in active nematics

Thampi, S. P.; Doostmohammadi, A.; Golestanian, Ramin; Yeomans, J. M.

doi:10.1209/0295-5075/112/28004

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Intrinsic free energy in active nematics

MPS-Authors

/persons/resource/persons219873

Golestanian, Ramin
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Thampi, S. P., Doostmohammadi, A., Golestanian, R., & Yeomans, J. M. (2015). Intrinsic free energy in active nematics. EPL, 112(2):. doi:10.1209/0295-5075/112/28004.

引用: https://hdl.handle.net/21.11116/0000-0001-7621-5

要旨

Basing our arguments on the theory of active liquid crystals, we demonstrate, both analytically and numerically, that the activity can induce an effective free energy which enhances ordering in extensile systems of active rods and in contractile suspensions of active discs. We argue that this occurs because any ordering fluctuation is enhanced by the flow field it produces. A phase diagram in the temperature-activity plane compares ordering due to a thermodynamic free energy to that resulting from the activity. We also demonstrate that activity can drive variations in concentration, but for a different physical reason that relies on the separation of hydrodynamic and diffusive time scales. Copyright © EPLA, 2015.