We review concepts and methods associated with quantum discord and related topics. We
also describe their possible connections with other aspects of quantum information and …

We review the quantum fidelity approach to quantum phase transitions in a pedagogical
manner. We try to relate all established but scattered results on the leading term of the …

The many-body physics at quantum phase transitions shows a subtle interplay between
quantum and thermal fluctuations, emerging in the low-temperature limit. In this review, we …

We propose an experimental scheme to verify the quantum nonequilibrium fluctuation
relations using current technology. Specifically, we show that the characteristic function of …

We study the statistics of the work done on a quantum critical system by quenching a control
parameter in the Hamiltonian. We elucidate the relation between the probability distribution …

Preparing an integrable system in a mixed state described by a thermal density matrix, we
subject it to a sudden quench and explore the subsequent unitary dynamics. To address the …

We propose to use the steered quantum coherence (SQC) as a signature of quantum phase
transitions (QPTs). By considering various spin chain models, including the transverse-field …

We study the slow quenching dynamics (characterized by an inverse rate τ− 1) of a one-
dimensional transverse Ising chain with nearest neighbor ferromagentic interactions across …

In most lattice models, the closing of a band gap typically occurs at high-symmetry points in
the Brillouin zone. Differently, in the Creutz model—describing a system of spinless fermions …

A quantum phase transition is generally thought to imprint distinctive characteristics on the
nonequilibrium dynamics of a closed quantum system. Specifically, the Loschmidt echo after …