Quantum thermalization and Virasoro symmetry
Quantum thermalization and Virasoro symmetry
复制标题
量子热化和维拉索罗对称性
DOI:
10.1088/1742-5468/ab900b
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Kraus, Per
中科院分区:
文献类型:
--
作者:
Beşken, Mert;Datta, Shouvik;Kraus, Per
We initiate a systematic study of high energy matrix elements of local operators in 2D CFT. Knowledge of these is required in order to determine whether the generalized eigenstate thermalization hypothesis (ETH) can hold in such theories. Most high energy states are high level Virasoro descendants, and by employing an oscillator representation of the Virasoro algebra we develop an efficient method for computing matrix elements of primary operators in such states. In parameter regimes where we expect (eg from AdS/CFT intuition) thermalization to occur, we observe striking patterns in the matrix elements: diagonal matrix elements are smoothly varying and off-diagonal elements, while nonzero, are power-law suppressed compared to the diagonal elements. We discuss the implications of these universal properties of 2D CFTs in regard to their compatibility with generalized ETH.
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