Session D14: Quantum Information Science in AMO

2:30 PM–5:30 PM, Monday, March 10, 2008
Morial Convention Center - 205

Sponsoring Units: DAMOP GQI
Chair: J. Y. Vaishnav, National Institute of Standards and Technology

Abstract ID: BAPS.2008.MAR.D14.5

Abstract: D14.00005 : Topological Entropy of Quantum Hall states in rotating Bose gases

3:18 PM–3:30 PM

Preview Abstract

Authors:

  Alexis Morris
    (University of Calgary)

  David Feder
    (University of Calgary)

Using exact numerical simulations of a small number of harmonically trapped ultracold alkali atoms at high rotation, we calculate the von Neumann entropy of the bosonic variant of the Laughlin and Pfaffian quantum Hall states. It has recently been shown that this entropy has a linear scaling with the boundary size. The y-intercept of this scaling relation corresponds to a universal quantity known as the topological entropy that is related to the quantum Hall filling factor. Through finite size scaling, we have extracted this quantity and compare the outcome to expected results.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.MAR.D14.5