32 citations · 117 across the 9 of their papers we have counts for
9 papers
Accelerated Wirtinger Flow: A fast algorithm for ptychography
Rui Xu, Mahdi Soltanolkotabi, Justin P. Haldar +4
This paper presents a new algorithm, Accelerated Wirtinger Flow (AWF), for ptychographic image reconstruction from phaseless diffraction pattern measurements. AWF is based on combi…
Coherent control of non-Markovian photon-resonator dynamics
Anthony F. J. Levi, Lorenzo Campos Venuti, Tameem Albash +1
We study the unitary time evolution of photons interacting with a dielectric resonator using coherent control pulses. We show that non-Markovianity of transient photon dynamics in…
Quantification and Control of non-Markovian Evolution in Finite Quantum Systems via Feedback
Nicholas Chancellor, Christoph Petri, Lorenzo Campos Venuti +2
We consider the unitary time evolution of continuous quantum mechanical systems confined to a cavity in contact with a finite bath of variable size. Measures for Markovianity for s…
Plasmonic Excitations in Tight-Binding Nanostructures
Rodrigo A. Muniz, Stephan Haas, A. F. J. Levi +1
We explore the collective electromagnetic response in atomic clusters of various sizes and geometries. Our aim is to understand, and hence to control, their dielectric response, ba…
Design of resonators using materials with negative refractive index
Petra Schmidt, Ilya Grigorenko, A. F. J. Levi
By optimizing the design we show that inhomogeneous electromagnetic resonators with almost uniform field intensity and up to twice the energy density of conventional structures are…
Adaptive Design of Excitonic Absorption in Broken-Symmetry Quantum Wells
Jason Thalken, Weifei Li, Stephan Haas +1
Adaptive quantum design is used to identify broken-symmetry quantum well potential profiles with optical response properties superior to previous ad-hoc solutions. This technique p…