Results 91 to 100 of about 18,006,196 (349)

Nonadiabatic quantum control of a semiconductor charge qubit

, 2011
We demonstrate multipulse quantum control of a single electron charge qubit. The qubit is manipulated by applying nonadiabatic voltage pulses to a surface depletion gate and readout is achieved using a quantum point contact charge sensor.
Dovzhenko, Y., Gossard, A. C., Lu, H., Petersson, K. D., Petta, J. R., Stehlik, J.   +5 more
core   +1 more source

Strong magnetic coupling of an ultracold gas to a superconducting waveguide cavity [PDF]

, 2008
Placing an ensemble of $10^6$ ultracold atoms in the near field of a superconducting coplanar waveguide resonator (CPWR) with $Q \sim 10^6$ one can achieve strong coupling between a single microwave photon in the CPWR and a collective hyperfine qubit ...
B. C. Wadell, Ch. Koller, D. Bouwmeester, H. Ritsch, H. Zoubi, J. Majer, J. Schmiedmayer, J. Verdú, M. Gross, R. Folman, R. E. Collin   +10 more
core   +3 more sources

Passivity-based PI control of first-order systems with I/O communication delays: a frequency domain analysis [PDF]

International Journal of Control, 2015
In this paper, the proportional integral (PI) control of first-order linear passive systems through a delayed communication channel is revisited in light of the relative stability concept called σ-stability.
F. Castaños, Edgar Estrada, S. Mondié, A. Ramírez   +3 more
semanticscholar   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Disturbance observer-based L(1) robust tracking control for single-link flexible-joint manipulator systems

The Journal of Engineering, 2019
In this study, a novel disturbance observer-based (DOB) [inline-formula] robust anti-disturbance tracking control problem is discussed for a kind of single-link flexible-joint manipulator with separate types of disturbances.
Chenbo Niu, Hong Shen, Jiafeng Li, Yang Yi   +3 more
doaj   +1 more source

Optimized pulses for the control of uncertain qubits

, 2012
Constructing high-fidelity control fields that are robust to control, system, and/or surrounding environment uncertainties is a crucial objective for quantum information processing. Using the two-state Landau-Zener model for illustrative simulations of a
A. Messiah, C. Brif, D. A. Lidar, F. Gaitan, G. G. Balint-Kurti, J. E. Levy, J. Ruths, J. W. Milnor, Jason M. Dominy, M. P. do Carmo, Malcolm S. Carroll, Matthew D. Grace, R. Abraham, S. J. van Enk, V. Guillemin, W. H. Press, Wayne M. Witzel   +16 more
core   +1 more source

A Polynomial Translation of pi-calculus FCPs to Safe Petri Nets [PDF]

, 2013
We develop a polynomial translation from finite control pi-calculus processes to safe low-level Petri nets. To our knowledge, this is the first such translation.
Hüchting, Reiner, Khomenko, Victor, Meyer, Roland   +2 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

GPIO-based robust control of magnetic levitation system subject external disturbance

The Journal of Engineering, 2019
This article considers the robust control problem of non-linear magnetic levitation system with parameter uncertainties and external disturbance.
Qixun Lan, Yujie Cai, Yamei Liu, Huafeng Xu, Yuqian Yang, Ya-nan Li   +5 more
doaj   +1 more source

New tuning rules for PI and fractional PI controllers

IFAC Proceedings Volumes, 2009
Abstract Abstract This paper presents new tuning rules for PI and fractional PI control of processes that are typically found in process control. The rules are based on characterization of process dynamics by three parameters that can be obtained from a simple step response experiment.
Juan J. Gude, Evaristo Kahoraho
openaire   +1 more source