Frontiers of quantum physics

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Entanglement production in non-equilibrium thermodynamics

INTERNATIONAL WORKSHOP ON STATISTICAL-MECHANICAL INFORMATICS 2008 (IW-SMI 2008) 143 (2009) ARTN 012010
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Reply to Comment on "Regional Versus Global Entanglement in Resonating-Valence-Bond States"

(2008)

Authors:

Dagomir Kaszlikowski, Aditi Sen De, Ujjwal Sen, Vlatko Vedral
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Kaszlikowski et al. Reply:

Physical Review Letters 101:24 (2008)

Authors:

D Kaszlikowski, A Sen, U Sen, V Vedral
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Entanglement in doped resonating valence bond states

Physical Review B - Condensed Matter and Materials Physics 78:22 (2008)

Authors:

R Ramanathan, D Kaszlikowski, M Wiesniak, V Vedral

Abstract:

We investigate the entanglement properties of resonating valence bond (RVB) states on a two-dimensional lattice in the presence of dopants that remove electrons from the lattice creating holes. The movement of the holes generated by the Hubbard Hamiltonian in the regime of strong Coulomb repulsion in this setting could be responsible for the phenomenon of high-temperature superconductivity as hypothesized by. We argue that there is a particular density of dopants (holes) where the entanglement contained in the lattice attains its maximal value for the nearest-neighbor RVB liquid state. This result implies that many-body entanglement may be related to quantum phase transitions that are modeled by RVB theory. © 2008 The American Physical Society.
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Positive phase space transformation incompatible with classical physics

(2008)

Authors:

Wonmin Son, Johannes Kofler, MS Kim, Vlatko Vedral, Caslav Brukner
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