3 citations · 5 across the 5 of their papers we have counts for
8 papers
Out-of-time-order hydrodynamics and scrambling
Marta Bucca, Akash Jain, Márk Mezei +1
Hydrodynamics as an effective field theory (EFT) has been immensely successful for predicting the behaviour of time-ordered correlation functions in the long-time, large-distance r…
How to distinguish chaos from integrability using OTOC
Alexey Milekhin, Anders Wallberg
The decay of out-of-time-ordered correlators (OTOCs) to a small residual value signals the scrambling of quantum information. This behavior is generic: it occurs in both chaotic an…
Pauli instability in arbitrary states: detecting magic in physical correlators
Tanner Jackson, Alexey Milekhin
Measures of non-stabilizerness (``magic'') of a quantum evolution quantify how hard it is to simulate on a classical computer. A natural question is how to extract information abou…
Out-of-time-ordered Correlators in de Sitter Revisited
Alexey Milekhin, Vladimir Narovlansky, Jiuci Xu
We study the 4-point out-of-time-ordered correlator (OTOC) of scalar fields using the eikonal approximation to gravity around a de Sitter background. It can be defined in a gauge-i…
All-order fluctuating hydrodynamics of the SYK lattice
Marta Bucca, Akash Jain, Márk Mezei +1
The SYK model has played an important role in recent developments in many-body quantum chaos. We study a spatially local generalisation of it: the SYK lattice. Starting from the no…
Planckian bound on the local equilibration time
Marvin Qi, Alexey Milekhin, Luca Delacrétaz
The local equilibration time of quantum many-body systems is conjectured to be bounded below by the Planckian time . We formalize this conjecture by defining…
On scrambling, tomperature and superdiffusion in de Sitter space
Alexey Milekhin, Jiuci Xu
This paper investigates basic properties of the de Sitter static patch using simple two-point functions in the probe approximation. We find that de Sitter equilibrates in a superdi…
Revisiting Brownian SYK and its possible relations to de Sitter
Alexey Milekhin, Jiuci Xu
We revisit Brownian Sachdev-Ye-Kitaev model and argue that it has emergent energy conservation overlooked in the literature before. We solve this model in the double-scaled regime…