861 citations · 8.4k across the 131 of their papers we have counts for
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Recovery Map for Fermionic Gaussian Channels
Brian Swingle, Yixu Wang
A recovery map effectively cancels the action of a quantum operation to a partial or full extent. We study the Petz recovery map in the case where the quantum channel and input sta…
Quantum Lyapunov Spectrum
Hrant Gharibyan, Masanori Hanada, Brian Swingle +1
We introduce a simple quantum generalization of the spectrum of classical Lyapunov exponents. We apply it to the SYK and XXZ models, and study the Lyapunov growth and entropy produ…
Accessing scrambling using matrix product operators
Shenglong Xu, Brian Swingle
Scrambling, a process in which quantum information spreads over a complex quantum system becoming inaccessible to simple probes, happens in generic chaotic quantum many-body system…
Resilience of scrambling measurements
Brian Swingle, Nicole Yunger Halpern
Most experimental protocols for measuring scrambling require time evolution with a Hamiltonian and with the Hamiltonian's negative counterpart (backwards time evolution). Engineeri…