69 citations · 1.7k across the 113 of their papers we have counts for
34 papers · 1 filter
Quantum signatures in quench from chaos to superradiance
Sayak Ray, Amichay Vardi, Doron Cohen
The driven-dissipative Dicke model features normal, superradiant, and lasing steady-states that may be regular or chaotic. We report quantum signatures of chaos in a quench protoco…
Triangular Bose-Hubbard trimer as a minimal model for a superfluid circuit
Geva Arwas, Amichay Vardi, Doron Cohen
The triangular Bose-Hubbard trimer is topologically the minimal model for a BEC superfluid circuit. As a dynamical system of two coupled freedoms it has mixed phase-space with chao…
The dephasing rate formula in the many body context
Doron Cohen, Jan von Delft, Florian Marquardt +1
We suggest a straightforward approach to the calculation of the dephasing rate in a fermionic system, which correctly keeps track of the crucial physics of Pauli blocking. Starting…
Random-matrix modeling of semi-linear response, the generalized variable range hopping picture, and the conductance of mesoscopic rings
Alexander Stotland, Tsampikos Kottos, Doron Cohen
Semi-linear response theory determines the absorption coefficient of a driven system using a resistor network calculation: Each unperturbed energy level of a particle in a vibratin…
Purely electric spin pumping in one-dimension
Yshai Avishai, Doron Cohen, Naoto Nagaosa
We show theoretically that a simple one dimensional system (such as metallic wire) can display quantum spin pumping possibly without pushing any charge. It is achieved by applying…
Quantum dynamics and transport in a double well system
Itamar Sela, Doron Cohen
The simplest one-dimensional model for the studying of non-trivial geometrical effects is a ring shaped device which is formed by joining two arms. We explore the possibility to mo…