6 papers · 1 filter
Quantum Birthmarks: Ergodicity Breaking Beyond Scarring
Anton M. Graf, Saul Atwood, Mingxuan Xiao +3
A hallmark of classical ergodicity is the complete loss of memory of the initial conditions due to eventual uniform covering of {\it a priori} available phase space. In quantum cou…
Universal Quantum Birthmark: Ghost of the quantum past
Ivy Xiaoya, Anton M. Graf, Eric J. Heller +1
Quantum dynamics retains a permanent and universal memory of its initial conditions, even in systems whose spectra display fully chaotic, random-matrix behavior. This effect, known…
Adiabaticity Crossover: From Anderson Localization to Planckian Diffusion
Tiange Xiang, Yubo Zhang, Joonas Keski-Rahkonen +2
We investigate electron transport in one dimension from the quantum-acoustic perspective, where the coherent-state representation of lattice vibrations results in a time-dependent…
Antiscarring from eigenstate stacking in a chaotic spinor condensate
Zhongling Lu, Anton M. Graf, Eric J. Heller +2
We reveal a feature of quantum scarring in systems with many particles: Quantum scars, living densely near an unstable periodic orbit, must be compensated by corresponding antiscar…
Path-Integral Approach to Quantum Acoustics
Joost V. de Nijs, Anton M. Graf, Eric J. Heller +1
A path-integral approach to quantum acoustics is developed here. In contrast to the commonly utilized particle perspective, this emerging field brings forth a long neglected but es…
Planckian Diffusion: The Ghost of Anderson Localization
Yubo Zhang, Anton M. Graf, Alhun Aydin +2
We find that Anderson localization ceases to exist when a random medium begins to move, but another type of fundamental quantum effect, Planckian diffusion , rises t…