30 citations · 117 across the 11 of their papers we have counts for
11 papers
Many-body dynamical localization and thermalization
Christine Khripkov, Amichay Vardi, Doron Cohen
We show that a quantum dynamical localization effect can be observed in a generic thermalization process of two weakly-coupled chaotic subsystems. Specifically, our model consists…
Semiclassical theory of strong localization for quantum thermalization
Christine Khripkov, Amichay Vardi, Doron Cohen
We introduce a semiclassical theory for strong localization that may arise in the context of many-body thermalization. As a minimal model for thermalization we consider a few-site…
Hidden timescale in the response of harmonically driven chaotic systems
Christine Khripkov, Amichay Vardi, Doron Cohen
Linear response theory relates the response of a system to the power-spectrum of its fluctuations. However, the response to external driving in realistic models exhibits a pronounc…
Quantum thermalization via percolation
Christine Khripkov, Amichay Vardi, Doron Cohen
We highlight a dynamical anomaly in which the rate of relaxation towards thermal equilibrium in a bi-partite quantum system violates the standard linear-response (Kubo) formulation…
Coherence oscillations between weakly coupled Bose-Hubbard dimers
Christine Khripkov, Amichay Vardi
We study theoretically the dynamics of two weakly-coupled Bose-Josephson junctions, prepared with the same particle number and Josephson excitation number but with differen…
Dynamics of exciton-polaritons in a Josephson double dimer
Christine Khripkov, Carlo Piermarocchi, Amichay Vardi
We study the dynamics of exciton-polaritons in a double-well configuration. The system consists of two weakly coupled Bose-Josephson junctions, each corresponding to a different ci…
Suppression of collision-induced dephasing by periodic, erratic, or noisy driving
Christine Khripkov, Amichay Vardi, Doron Cohen
We compare different driving scenarios for controlling the loss of single particle coherence of an initially coherent preparation in the vicinity of the hyperbolic instability of t…
Coherence dynamics of kicked Bose-Hubbard dimers: Interferometric signatures of chaos
Christine Khripkov, Doron Cohen, Amichay Vardi
We study the coherence dynamics of a kicked two-mode Bose-Hubbard model starting with an arbitrary coherent spin preparation. For preparations in the chaotic regions of phase-space…
Temporal fluctuations in the bosonic Josephson junction as a probe for phase space tomography
Christine Khripkov, Doron Cohen, Amichay Vardi
We study the long time coherence dynamics of a two-mode Bose-Hubbard model in the Josephson interaction regime, as a function of the relative phase and occupation imbalance of an a…
Squeezing in driven bimodal Bose-Einstein Condensates: Erratic driving versus noise
Christine Khripkov, Amichay Vardi, Doron Cohen
We study the interplay of squeezing and phase randomization near the hyperbolic instability of a two-site Bose-Hubbard model in the Josephson interaction regime. We obtain results…
Quantum Zeno control of coherent dissociation
C. Khripkov, A. Vardi
We study the effect of dephasing on the coherent dissociation dynamics of an atom-molecule Bose-Einstein condensate. We show that when phase-noise intensity is strong with respect…