We propose a method for detecting bipartite entanglement in a many-body mixed state
based on estimating moments of the partially transposed density matrix. The estimates are …

The entanglement properties of random pure states are relevant to a variety of problems
ranging from chaotic quantum dynamics to black-hole physics. The averaged bipartite …

We study the logarithmic entanglement negativity of symmetry-protected topological (SPT)
phases and quantum critical points (QCPs) of one-dimensional noninteracting fermions at …

Quantum entanglement uncovers the essential principles of quantum matter, yet determining
its structure in realistic many-body systems poses significant challenges. Here, we employ a …

We consider the fermionic (logarithmic) negativity between two fermionic modes in the
Schwinger model. Recent results pointed out that fermionic systems can exhibit stronger …

In a non-equilibrium many-body system, the quantum information dynamics between non-
complementary regions is a crucial feature to understand the local relaxation towards …

A basic diagnostic of entanglement in mixed quantum states is known as the positive partial
transpose (PT) criterion. Such criterion is based on the observation that the spectrum of the …

The entanglement of non-complementary regions is investigated in an inhomogeneous free-
fermion chain through the lens of the fermionic logarithmic negativity. Focus is on the …

Topologically-ordered phases of matter at nonzero temperature are conjectured to exhibit
universal patterns of long-range entanglement, which can be detected using the …

We introduce a framework to distinguish long-range quantum entanglement from long-range
classical correlations close to a finite temperature critical point in a quantum system. In …