Department of Physics Papers

Document Type

Journal Article

Date of this Version

12-1992

Publication Source

Physical Review Letters

Volume

69

Issue

23

Start Page

3409

Last Page

3412

DOI

10.1103/PhysRevLett.69.3409

Abstract

Statistical ensembles of flexible two-dimensional fluid membranes arise naturally in the description of many physical systems. Typically one encounters such systems in a regime of low tension but high stiffness against bending, which is just the opposite of the regime described by the Polyakov string. We study a class of couplings between membrane shape and in-plane order which break 3-space parity invariance. Remarkably there is only one
such allowed coupling (up to boundary terms); this term will be present for any lipid bilayer composed of tilted chiral molecules. We calculate the renormalization-group behavior of this relevant coupling in a simplified model and show how thermal fluctuations effectivelyreduce it in the infrared.

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Date Posted: 01 May 2017

This document has been peer reviewed.