Microscopic origin of the quantum Mpemba effect in integrable systems

C Rylands, K Klobas, F Ares, P Calabrese… - Physical Review Letters, 2024 - APS
The highly complicated nature of far from equilibrium systems can lead to a complete
breakdown of the physical intuition developed in equilibrium. A famous example of this is the …

Entanglement asymmetry and quantum Mpemba effect in two-dimensional free-fermion systems

S Yamashika, F Ares, P Calabrese - Physical Review B, 2024 - APS
The quantum Mpemba effect is the counterintuitive nonequilibrium phenomenon wherein
the dynamic restoration of a broken symmetry occurs more rapidly when the initial state …

Nonequilibrium full counting statistics and symmetry-resolved entanglement from space-time duality

B Bertini, P Calabrese, M Collura, K Klobas… - Physical Review Letters, 2023 - APS
Owing to its probabilistic nature, a measurement process in quantum mechanics produces a
distribution of possible outcomes. This distribution—or its Fourier transform known as full …

Dynamical purification and the emergence of quantum state designs from the projected ensemble

M Ippoliti, WW Ho - PRX Quantum, 2023 - APS
Quantum thermalization in a many-body system is defined by the approach of local
subsystems toward a universal form, describable as an ensemble of quantum states wherein …

Lack of symmetry restoration after a quantum quench: an entanglement asymmetry study

F Ares, S Murciano, E Vernier, P Calabrese - SciPost Physics, 2023 - scipost.org
We consider the quantum quench in the XX spin chain starting from a tilted Néel state which
explicitly breaks the $ U (1) $ symmetry of the post-quench Hamiltonian. Very surprisingly …

Temporal entanglement in chaotic quantum circuits

A Foligno, T Zhou, B Bertini - Physical Review X, 2023 - APS
The concept of space evolution (or space-time duality) has emerged as a promising
approach for studying quantum dynamics. The basic idea involves exchanging the roles of …

Exact quench dynamics of the Floquet quantum East model at the deterministic point

B Bertini, C De Fazio, JP Garrahan, K Klobas - Physical Review Letters, 2024 - APS
We study the nonequilibrium dynamics of the Floquet quantum East model (a Trotterized
version of the kinetically constrained quantum East spin chain) at its “deterministic point,” …

Entanglement asymmetry as a probe of symmetry breaking

F Ares, S Murciano, P Calabrese - Nature Communications, 2023 - nature.com
Symmetry and symmetry breaking are two pillars of modern quantum physics. Still,
quantifying how much a symmetry is broken is an issue that has received little attention. In …

Dynamics of charge-imbalance-resolved entanglement negativity after a quench in a free-fermion model

G Parez, R Bonsignori… - Journal of Statistical …, 2022 - iopscience.iop.org
The presence of a global internal symmetry in a quantum many-body system is reflected in
the fact that the entanglement between its subparts is endowed with an internal structure …

Entanglement negativity and mutual information after a quantum quench: exact link from space-time duality

B Bertini, K Klobas, TC Lu - Physical Review Letters, 2022 - APS
We study the growth of entanglement between two adjacent regions in a tripartite, one-
dimensional many-body system after a quantum quench. Combining a replica trick with a …