Atomtronics is an emerging field that aims to manipulate ultracold atom moving in matter-
wave circuits for fundamental studies in both quantum science and technological …

For any D-dimensional quantum lattice system, the fidelity between two ground state many-
body wave functions is mapped onto the partition function of a D-dimensional classical …

Systems of interacting bosons in triple-well potentials are of significant theoretical and
experimental interest. They are explored in contexts that range from quantum phase …

A general relation between quantum phase transitions and the second derivative of the
fidelity (or the “fidelity susceptibility”) is proposed. The validity and the limitation of the fidelity …

We study the late-time dynamics of two particles confined in one spatial dimension and
subject to two-body losses. The dynamics is exactly described by a non-Hermitian …

By means of the density matrix renormalization group technique, the scaling relation of the
fidelity susceptibility proposed recently is verified for the spin-one XXZ spin chain with an on …

We analyze the fidelity per lattice site for two different ground states of the one-dimensional
quantum Ising model in a transverse field near the critical point. It is found that, in the …

We introduce a partial state fidelity approach to quantum phase transitions. We consider a
superconducting lattice with a magnetic impurity inserted at its center, and look at the fidelity …

Persistent currents flowing in spatially closed tracks define one of the most iconic concepts
in mesoscopic physics. They have been studied in solid-state platforms such as superfluids …

We study the quantum ground-state phases of the one-dimensional disordered Bose-
Hubbard model with attractive interactions, realized by a chain of superconducting transmon …