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Author

Jiaju Zhang

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Preprint Oct 2026

Generalized eigenstate thermalization beyond leading order in 2D large c CFTs

We develop a Fock-space formulation that reduces expectation values of vacuum-family quasi-primaries in qKdV eigenstates of arbitrary highest-weight conformal families to a free-bosonic problem, and employ it to test the generalized eigenstate thermalization hypothesis (GETH), in 2D conformal field theories with large...

Zi-Yuan Wang, Jiaju Zhang · 0 citations
Preprint Sep 2026

A new product entropy

We propose a new product entropy, defined as the R\'enyi (or von Neumann) entropy of a normalized product operator constructed from two density matrices. We establish a duality showing that the SVD entanglement entropy of a subsystem for two pure states is exactly equivalent to the product entropy of the complementary...

Jiaju Zhang, Zhuo-Yu Xian, René Meyer et al. · 0 citations

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