49 citations · 436 across the 40 of their papers we have counts for
44 papers
Light cones for open quantum systems
Sébastien Breteaux, Jérémy Faupin, Marius Lemm +3
We consider Markovian open quantum dynamics (MOQD). We show that, up to small-probability tails, the supports of quantum states evolving under such dynamics propagate with finite s…
Information propagation in long-range quantum many-body systems
Marius Lemm, Carla Rubiliani, Israel Michael Sigal +1
We study general lattice bosons with long-range hopping and long-range interactions decaying as with . We find a linear light cone for the informatio…
Reflected entropy is not a correlation measure
Patrick Hayden, Marius Lemm, Jonathan Sorce
By explicit counterexample, we show that the "reflected entropy" defined by Dutta and Faulkner is not monotonically decreasing under partial trace, and so is not a measure of physi…
Maximal Speed of Propagation in Open Quantum Systems
Sébastien Breteaux, Jérémy Faupin, Marius Lemm +1
We prove a maximal velocity bound for the dynamics of Markovian open quantum systems. The dynamics are described by one-parameter semi-groups of quantum channels satisfying the von…
Thermal Area Law for Lattice Bosons
Marius Lemm, Oliver Siebert
A physical system is said to satisfy a thermal area law if the mutual information between two adjacent regions in the Gibbs state is controlled by the area of their boundary. Therm…
The spin-one Motzkin chain is gapped for any area weight
Radu Andrei, Marius Lemm, Ramis Movassagh
We consider the spin-one Motzkin chain with area weight . We resolve three questions from the literature about this model. We prove (i) existence of a uniform spectral gap for…