142 citations · 342 across the 20 of their papers we have counts for
4 papers · 1 filter
Classical correspondence beyond the Ehrenfest time for open quantum systems with general Lindbladians
Felipe Hernández, Daniel Ranard, C. Jess Riedel
Quantum and classical systems evolving under the same formal Hamiltonian may dramatically differ after the Ehrenfest timescale , even as $\hbar \to 0…
Ehrenfest's theorem beyond the Ehrenfest time
Felipe Hernández, Daniel Ranard, C. Jess Riedel
In closed quantum systems, wavepackets can spread exponentially in time due to chaos, forming long-range superpositions in just seconds for ordinary macroscopic systems. A weakly c…
A spin-energy operator inequality for Heisenberg-coupled qubits
Daniel Ranard, C. Jess Riedel
We slightly strengthen an operator inequality identified by Correggi et al. that lower bounds the energy of a Heisenberg-coupled graph of spins using the total spin. In par…
Universal lower bound on topological entanglement entropy
Isaac H. Kim, Michael Levin, Ting-Chun Lin +2
Entanglement entropies of two-dimensional gapped ground states are expected to satisfy an area law, with a constant correction term known as the topological entanglement entropy (T…