49 citations · 436 across the 40 of their papers we have counts for
4 papers · 1 filter
Monotonicity of quantum relative entropy and recoverability
Mario Berta, Marius Lemm, Mark M. Wilde
The relative entropy is a principal measure of distinguishability in quantum information theory, with its most important property being that it is non-increasing with respect to no…
New Anomalous Lieb-Robinson Bounds in Quasi-Periodic XY Chains
David Damanik, Marius Lemm, Milivoje Lukic +1
We announce and sketch the rigorous proof of a new kind of anomalous (or sub-ballistic) Lieb-Robinson bound for an isotropic XY chain in a quasi-periodic transversal magnetic field…
On Anomalous Lieb-Robinson Bounds for the Fibonacci XY Chain
David Damanik, Marius Lemm, Milivoje Lukic +1
We rigorously prove a new kind of anomalous (or sub-ballistic) Lieb-Robinson bound for the isotropic XY chain with Fibonacci external magnetic field at arbitrary coupling. It is an…
New Counterexamples for Sums-Differences
Marius Lemm
We present new counterexamples, which provide stronger limitations to sums-differences statements than were previously known. The main idea is to consider non-uniform probability m…