133 citations · 1.5k across the 54 of their papers we have counts for
55 papers
Finite temperature Fredholm determinants for dynamical correlation functions
Oleksandr Gamayun
We study the long-time, large-distance asymptotics of finite-temperature dynamical Fredholm determinants using effective form factors. The method expresses these asymptotics as a f…
Nonequilibrium full counting statistics of multicomponent strongly-interacting quantum gases with defects
Ovidiu I. Patu, Oleksandr Gamayun, Catalin Pascu Moca
We investigate the full counting statistics of a one-dimensional multicomponent impenetrable gas released from a bipartite state in the presence of a local defect. Spin--charge sep…
Dynamical frustration in spacetime metamaterials enables cascading logic and synchronization
Rupesh Mahore, Oleksandr Gamayun, Guillaume Noetinger +3
Spacetime metamaterials are engineered media whose constitutive parameters such as permittivity, permeability, stiffness, or mass density are modulated simultaneously in both space…
Cohomological beta function
Oleksandr Gamayun, Maxim Gritskov, Andrey Losev
We propose a cohomological approach to computing the conformal anomaly. Using the example of current-current deformations of two-dimensional conformal field theories, we reproduce…
The exact dynamical structure factor of one-dimensional hard rods and its universal random matrix behavior
Oleksandr Gamayun, Miłosz Panfil
We obtain an exact analytic expression for the dynamical structure factor of one-dimensional quantum gas of hard rods. Our result is valid for an arbitrary many-body state of the s…
Exactly solvable models for universal operator growth
Oleksandr Gamayun, Murtaza Ali Mir, Oleg Lychkovskiy +1
Quantum observables of generic many-body systems exhibit a universal pattern of growth in the Krylov space of operators. This pattern becomes particularly manifest in the Lanczos b…