Entanglement Entropy of Mixed State in Thermal CFT$_2$
Xin Jiang, Haitang Yang, and Zilin Zhao
TL;DR
This paper calculates the entanglement entropy of mixed states in thermal two-dimensional conformal field theories using a subtraction method, exploring holographic duals and revealing a horizon-crossing feature in thermofield double states.
Contribution
It introduces a subtraction approach to compute bipartite mixed state entanglement entropy in thermal CFT$_2$, clarifying holographic duals of various configurations.
Findings
Identifies horizon-crossing in two-sided entanglement configurations.
Provides explicit entanglement entropy calculations for thermal CFT$_2$.
Clarifies the holographic interpretation of mixed state entanglement.
Abstract
Using the subtraction approach, we give the bipartite mixed state entanglement entropy in thermal . With these entanglement entropies, we examine in detail the holographic duals of different entangling configurations unambiguously. In the thermofield double state, we show a horizon-crossing feature in two-sided entanglement configuration.
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Taxonomy
TopicsAdvanced Thermodynamics and Statistical Mechanics · Quantum Information and Cryptography