Showing quant-phShow all
2 papers · 1 filter
quant-ph2025
Diverging conditional correlation lengths in the approach to high temperature
Jerome Lloyd, Dmitry A. Abanin, Sarang Gopalakrishnan
The Markov length was recently proposed as an information-theoretic diagnostic for quantum mixed-state phase transitions [Sang & Hsieh, Phys. Rev. Lett. 134, 070403 (2025)]. Here,…
quant-ph2025
Breakdown of Fermi's Golden Rule in 1d systems at non-zero temperature
Thomas Young, Jerome LLoyd, Curt von Keyserlingk
In interacting quantum systems, the single-particle Green's function is expected to decay in time due to the interaction induced decoherence of quasiparticles. In the limit of weak…