Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2010-08-31
Phys. Rev. B 83, 115322 (2011)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
New findings in Eqs.(5)-(8) and pertaining discussion, and addendum to the title, version as published
Scientific paper
10.1103/PhysRevB.83.115322
We study the entanglement spectra of bilayer quantum Hall systems at total filling factor nu=1. In the interlayer-coherent phase at layer separations smaller than a critical value, the entanglement spectra show a striking similarity to the energy spectra of the corresponding monolayer systems around half filling. The transition to the incoherent phase can be followed in terms of low-lying entanglement levels. Finally, we describe the connection between those two types of spectra in terms of an effective temperature leading to relations for the entanglement entropy which are in full analogy to canonical thermodynamics.
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