Barren plateaus have emerged as a pivotal challenge for variational quantum computing.
Our understanding of this phenomenon underwent a transformative shift with the recent …

We study the ground state properties of the one-dimensional extended Hubbard model at
half filling from the perspective of its particle reduced density matrix. We focus on the …

Background: In quantum mechanics, entanglement is the most striking phenomenon which
has no counterpart in classical systems. Although different approaches have already been …

Recently, it has been realized that indistinguishability is a resource for quantum information
processing. A new method to represent the indistinguishable particles by Franco et al.(Sci …

The performance of beyond mean-field methods in solving the quantum many-body problem
for fermions is usually characterized by the correlation energy measured with respect to the …

Non-Hermitian spin systems have attracted extensive interest due to their unconventional
magnetic properties, rich entanglement resources, and unusual quantum criticality …

We analyze a general bipartite-like representation of arbitrary pure states of N
indistinguishable partcles, valid for both bosons and fermions, based on M-and (N− M) …

In this brief survey, we discuss some of the scientific and philosophical problems and
debates that underlie the notions of identity, individuality and indistinguishability in physics …

How much information does a fermionic state contain? To address this fundamental
question, we define the complexity of a particle-conserving many-fermion state as the …

We study dynamical (quasi) condensation in the Fermi-Hubbard model starting from a
completely uncorrelated initial state of adjacent doubly occupied sites. We show that upon …