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20112026
most citedPseudomode expansion of many-body correlation functions

9 citations · 16 across the 11 of their papers we have counts for

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5 papers · 1 filter

cond-mat.str-el2024★ 1 cited

Fermionic transport through a driven quantum point contact: breakdown of Floquet thermalization beyond a critical driving frequency

Ivan V. Dudinets, Oleg Lychkovskiy

We study a quantum system that consists of two fermionic chains coupled by a driven quantum point contact (QPC). The QPC contains a bond with a periodically varying tunneling ampli…

quant-ph2024★ 1 cited

Classical periodic trajectories and quantum scars in many-spin systems

Igor Ermakov, Oleg Lychkovskiy, Boris V. Fine

We numerically investigate the stability of exceptional periodic classical trajectories in rather generic chaotic many-body systems and explore a possible connection between these…

cond-mat.str-el2024★ 9 cited

Pseudomode expansion of many-body correlation functions

Alexander Teretenkov, Filipp Uskov, Oleg Lychkovskiy

We present an expansion of a many-body correlation function in a sum of pseudomodes -- exponents with complex frequencies that encompass both decay and oscillations. The pseudomode…

quant-ph2024★ 2 cited

Polynomially restricted operator growth in dynamically integrable models

Igor Ermakov, Tim Byrnes, Oleg Lychkovskiy

We provide a framework to determine the upper bound to the complexity of a computing a given observable with respect to a Hamiltonian. By considering the Heisenberg evolution of th…

quant-ph2024

Unified framework for efficiently computable quantum circuits

Igor Ermakov, Oleg Lychkovskiy, Tim Byrnes

Quantum circuits consisting of Clifford and matchgates are two classes of circuits that are known to be efficiently simulatable on a classical computer. We introduce a unified fram…