7 papers
Revivals imply quantum many-body scars
Álvaro M. Alhambra, Anurag Anshu, Henrik Wilming
We derive general results relating revivals in the dynamics of quantum many-body systems to the entanglement properties of energy eigenstates. For a D-dimensional lattice system of…
By-passing fluctuation theorems
Paul Boes, Rodrigo Gallego, Nelly H. Y. Ng +2
Fluctuation theorems impose constraints on possible work extraction probabilities in thermodynamical processes. These constraints are stronger than the usual second law, which is c…
Single-shot holographic compression from the area law
Henrik Wilming, Jens Eisert
The area law conjecture states that the entanglement entropy of a region of space in the ground state of a gapped, local Hamiltonian only grows like the surface area of the region.…
Von Neumann entropy from unitarity
P. Boes, J. Eisert, R. Gallego +2
The von Neumann entropy is a key quantity in quantum information theory and, roughly speaking, quantifies the amount of quantum information contained in a state when many identical…
Equilibration times in closed quantum many-body systems
H. Wilming, T. R. de Oliveira, A. J. Short +1
For a quantum system to be captured by a stationary statistical ensemble, as is common in thermodynamics and statistical mechanics, it is necessary that it reaches some apparently…
Catalytic quantum randomness
P. Boes, H. Wilming, R. Gallego +1
Randomness is a defining element of mixing processes in nature and an essential ingredient to many protocols in quantum information. In this work, we investigate how much randomnes…