Results 81 to 90 of about 158,407 (191)

Optical Preparation and Coherent Control of Ultrafast Nonlinear Quantum Superpositions in Exciton Gases: A Case Study for Atomically Thin Semiconductors

Physical Review X, 2020
We report on the optical preparation of coherent superpositions of exciton and biexciton states manifested in temporal nonlinear oscillations in interacting exciton gases.
Florian Katsch, Andreas Knorr
doaj   +1 more source

Coherence vortices by binary pinholes

Nanophotonics
Singularity in a two-point complex coherence function, known as coherence vortices, represents zero visibility with a helical phase structure. In this paper, we introduce a novel technique to generate the coherence vortices of different topological ...
Gautam Akanksha, Agarwal Amit K., Singh Rakesh Kumar   +2 more
doaj   +1 more source

Incoherent quantum feedback control of collective light scattering by Bose-Einstein condensates

, 2016
It is well known that in the presence of a ring cavity the light scattering from a uniform atomic ensemble can become unstable resulting in the collective atomic recoil lasing. This is the result of a positive feedback due to the cavity.
Ivanov, Denis A., Ivanova, Tatiana Yu., Mekhov, Igor B.   +2 more
core  

Autonomous quantum thermal machine for generating steady-state entanglement

New Journal of Physics, 2015
We discuss a simple quantum thermal machine for the generation of steady-state entanglement between two interacting qubits. The machine is autonomous in the sense that it uses only incoherent interactions with thermal baths, but no source of coherence or
Jonatan Bohr Brask, Géraldine Haack, Nicolas Brunner, Marcus Huber   +3 more
doaj   +1 more source

Parametric Landau damping of space charge modes

Physical Review Accelerators and Beams, 2018
Landau damping is the mechanism of plasma and beam stabilization; it arises through energy transfer from collective modes to the incoherent motion of resonant particles.
Alexandru Macridin, Alexey Burov, Eric Stern, James Amundson, Panagiotis Spentzouris   +4 more
doaj   +1 more source

Development of 30-MHz radar system with wide scanning capability for dedicated probing of ionosphere [PDF]

, 2017
15th MST Radar WorkshopSession M1: Radar hardware, signal processing, quality control for coherent and incoherent radarsMay 30 (Tue), Poster ...

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Purity benchmarking study of error coherence in a superconducting qubit

APL Quantum
In this study, we employ purity benchmarking (PB) to explore the dynamics of gate noise in a superconducting qubit system. Over 1110 h of observations on an Xmon qubit, we simultaneously measure the coherence noise budget across two different operational
Auda Zhu, Jérémy H. Béjanin, Xicheng Xu, Matteo Mariantoni   +3 more
doaj   +1 more source

BCL-3 attenuation of TNFA expression involves an incoherent feed-forward loop regulated by chromatin structure.

PLoS ONE, 2013
Induction of genes is rarely an isolated event; more typically occurring as part of a web of parallel interactions, or motifs, which act to refine and control gene expression. Here, we define an Incoherent Feed-forward Loop motif in which TNFα-induced NF-
Thomas Walker, Antony Adamson, Dean A Jackson   +2 more
doaj   +1 more source

Development of a high-resolution 1.3 GHz wind profiler radar [PDF]

, 2017
15th MST Radar WorkshopSession M1: Radar hardware, signal processing, quality control for coherent and incoherent radarsMay 30 (Tue), Poster ...

core   +1 more source

Radar Imaging of Field-aligned Plasma Irregularities Using Multireceiver and Multifrequency Techniques Implemented in Phased-Array VHF Radars [PDF]

, 2017
15th MST Radar WorkshopSession M1: Radar hardware, signal processing, quality control for coherent and incoherent radarsMay 29 (Mon), NIPR ...

core   +1 more source