Visualizing quantum phase transitions in the XXZ model via the quantum steering ellipsoid
Ming-Ming Du,
Da-Jian Zhang,
Zhao-Yi Zhou
et al.
Abstract:The past two decades have witnessed a surge of interest in borrowing tools from quantum information theory to investigate quantum phase transitions (QPTs). The best known examples are entanglement measures whose nonanalyticities at critical points were tied to QPTs in a plethora of physical models. Here, focusing on the XXZ model, we show how QPTs can be revealed through the quantum steering ellipsoid (QSE), which is a geometric tool capable of characterizing both the strength and type of quantum correlations … Show more
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