We show that the entropy of cosmological perturbations originating as quantum vacuum
fluctuations in the very early universe, including the contribution of the leading nonlinear …

Unitary evolution under a time-dependent Hamiltonian is a key component of simulation on
quantum hardware. Synthesizing the corresponding quantum circuit is typically done by …

As a hallmark of a pure quantum effect, quantum entanglement has provided
unconventional routes to characterize condensed matter systems. Here, from the …

We study the momentum-space entanglement between the sub-and super-Hubble modes of
a spectator scalar field, with a cubic λ ϕ 3 interaction, in de Sitter space. Momentum-space …

In this paper, we study the entanglement structure of mixed states in quantum many-body
systems using the $\textit {negativity contour} $, a local measure of entanglement that …

We investigate entanglement generation between the sub-and super-Hubble modes of
inflaton fluctuations, in the context of particle production from perturbations during inflation …

A metal can be driven to an insulating phase through distinct mechanisms. A possible way is
via the Coulomb interaction, which then defines the Mott metal-insulator transition (MIT) …

Momentum space entanglement entropy probes quantum correlations in interacting
fermionic phases. It is very sensitive to interactions, obeying volume-law scaling in general …

The entanglement between momentum modes of a quantum field theory at different scales is
not as well studied as its counterpart in real space, despite the natural connection with the …

We analyze fermions after an interaction quantum quench in one spatial dimension and
study the growth of the steady state entanglement entropy density under either a spatial …