activity
20212026
most citedSecond-order statistics of fermionic Gaussian states

14 citations · 40 across the 9 of their papers we have counts for

collaborators

10 papers

math-ph2026

Difference equations of average entropies

Youyi Huang, Linfeng Wei, Lu Wei +1

Exact cumulants of entanglement entropies of random state ensembles have traditionally been studied within the random matrix framework. In this work, we propose an alternative appr…

math-ph2026

Spectral moments of Bures-Hall ensemble and applications to entanglement entropy

Linfeng Wei, Youyi Huang, Lu Wei

We study spectral moments of the Bures-Hall random matrices ensemble. The main result establishes a recurrence relation for the -th spectral moment valid for a real-valued ,…

math-ph2026

Non-intersecting Squared Bessel Process: Spectral Moments and Dynamical Entanglement Entropy

Youyi Huang, Lu Wei

Statistical ensembles of reduced density matrices of bipartite quantum systems play a central role in entanglement estimation, but do not capture the non-stationary nature of entan…

math-ph2025

Higher-order spectral form factors of circular unitary ensemble

Sohail, Youyi Huang, Lu Wei

Spectral form factor (SFF), one of the key quantity from random matrix theory, serves as an important tool to probe universality in disordered quantum systems and quantum chaos. In…

math-ph2025

Skewness of von Neumann entropy over Bures-Hall random states

Linfeng Wei, Youyi Huang, Lu Wei

We study the degree of entanglement, as measured by von Neumann entropy, of bipartite systems over the Bures-Hall ensemble. Closed-form expressions of the first two cumulants of vo…

math-ph2025

Cumulant Structures of Entanglement Entropy

Youyi Huang, Lu Wei

We present a new method to derive exact cumulant expressions of any order of von Neumann entropy over Hilbert-Schmidt ensemble. The new method uncovers hidden cumulant structures t…

math-ph2023★ 1 cited

Entanglement capacity of fermionic Gaussian states

Youyi Huang, Lu Wei

We study the capacity of entanglement as an alternative to entanglement entropies in estimating the degree of entanglement of quantum bipartite systems over fermionic Gaussian stat…

math-ph2022★ 12 cited

Entropy fluctuation formulas of fermionic Gaussian states

Youyi Huang, Lu Wei

We study the statistical behaviour of quantum entanglement in bipartite systems over fermionic Gaussian states as measured by von Neumann entropy. The formulas of average von Neuma…

math-ph2021★ 14 cited

Second-order statistics of fermionic Gaussian states

Youyi Huang, Lu Wei

We study the statistical behavior of entanglement in quantum bipartite systems over fermionic Gaussian states as measured by von Neumann entropy and entanglement capacity. The focu…

quant-ph2021★ 13 cited

Kurtosis of von Neumann entanglement entropy

Youyi Huang, Lu Wei, Bjordis Collaku

In this work, we study the statistical behavior of entanglement in quantum bipartite systems under the Hilbert-Schmidt ensemble as assessed by the standard measure - the von Neuman…