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arXiv · cond-mat/0311647

Entanglement Energetics at Zero Temperature

Andrew N. Jordan·Markus Buttiker
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Abstract

We show how many-body ground state entanglement information may be extracted from sub-system energy measurements at zero temperature. Generically, the larger the measured energy fluctuations are, the larger the entanglement is. Examples are given with the two-state system and the harmonic oscillator. Comparisons made with recent qubit experiments show this type of measurement provides another method to quantify entanglement with the environment.

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Andrew N. Jordan, Markus Buttiker. 2003-11-28. Entanglement Energetics at Zero Temperature. https://doi.org/10.1103/physrevlett.92.247901

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