Results 41 to 50 of about 3,135,157 (294)

Feedback control of spin systems

, 2005
The feedback stabilization problem for ensembles of coupled spin 1/2 systems is discussed from a control theoretic perspective. The noninvasive nature of the bulk measurement allows for a fully unitary and deterministic closed loop.
A. Abragam, A. Bacciotti, A. Hopkins, A.C. Doherty, A.N. Korotkov, C. Altafini, C. Altafini, Claudio Altafini, D. Abergel, D. Cory, D.A. Lidar, D.A. Steck, E. Brown, H. Rabitz, H.K. Khalil, J.M. Geremia, K. Zyczkowski, P. Vettori, R. Handel van, R.R. Ernst, S. Sastry, T.F. Havel, V. Jurdjevic, W. Zhu   +23 more
core   +1 more source

Universal feedback control of two-qubit entanglement [PDF]

, 2017
We consider two-qubit undergoing local dissipation and subject to local driving. We then determine the optimal Markovian feedback action to preserve initial entanglement as well as to create stationary entanglement with the help of an XY interaction ...
Mancini, Stefano, Nourmandipour, Alireza, Rafiee, Morteza   +2 more
core   +2 more sources

State Estimation for Early Feedback Responses in Reaching: Intramodal or Multimodal?

Frontiers in Integrative Neuroscience, 2017
Humans are highly skilled in controlling their reaching movements, making fast and task-dependent movement corrections to unforeseen perturbations. To guide these corrections, the neural control system requires a continuous, instantaneous estimate of the
Leonie Oostwoud Wijdenes, W. Pieter Medendorp   +1 more
doaj   +1 more source

An Approach for Stabilizing Abnormal Neural Activity in ADHD Using Chaotic Resonance

Frontiers in Computational Neuroscience, 2021
Reduced integrity of neural pathways from frontal to sensory cortices has been suggested as a potential neurobiological basis of attention-deficit hyperactivity disorder.
Sou Nobukawa, Nobuhiko Wagatsuma, Haruhiko Nishimura, Hirotaka Doho, Hirotaka Doho, Tetsuya Takahashi, Tetsuya Takahashi, Tetsuya Takahashi   +7 more
doaj   +1 more source

Individuals with aphasia generate larger adaptive and corrective responses to suddenly introduced auditory perturbations

Frontiers in Human Neuroscience
IntroductionPersons with aphasia (PWA) experience changes to feedback and feedforward speech motor control, though the impact on these subsystems has not yet been explored using different perturbation schedules. Here, we examine the magnitude of auditory-
Alexis Basciano, Sara-Ching Chao, Amy Gomez, Ayoub Daliri, Corianne Rogalsky   +4 more
doaj   +1 more source

Feedback Control of Quantum Transport

, 2010
The current through nanostructures like quantum dots can be stabilized by a feedback loop that continuously adjusts system parameters as a function of the number of tunnelled particles $n$. At large times, the feedback loop freezes the fluctuations of $n$
H. J. Carmichael, H. M. Wiseman, J. G. Walker, Tobias Brandes, Y. V. Nazarov   +4 more
core   +1 more source

Revisiting quantum feedback control: disentangling the feedback‐induced phase from the corresponding amplitude [PDF]

, 2019
Coherent time‐delayed feedback allows the control of a quantum system and its partial stabilization against noise and decoherence. The crucial and externally accessible parameters in such control setups are the round‐trip‐induced delay time τ and the ...
Barkemeyer, Kisa, Carmele, Alexander, Finsterhölzl, Regina, Knorr, Andreas   +3 more
core   +1 more source

Patient Activation in Childhood, Adolescent, and Young Adult Cancer Survivors: Current Insights and Implications for Survivorship Care—A Systematic Review From the e‐QuoL Project

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Patient activation—encompassing knowledge, confidence, and skills in managing individual's health—is a cornerstone of person‐centered care. However, its significance among childhood, adolescent, and young adult cancer survivors (CAYACS) remains unexplored. This article examines the application of the 13‐item Patient Activation Measure (
Charlotte Demoor‐Goldschmidt, Anne Maas, Gisela Michel, Amandine Bertrand, Kristen E. T. Thornton, Martine Bellanger, Anna‐Liesa Filbert, Desiree Grabow, Monica Muraca, Katharina Roser, Sara Oberti, Jelena Roganovic, Hanne Cathrine Lie   +12 more
wiley   +1 more source

Delayed feedback control in quantum transport

, 2012
Feedback control in quantum transport has been predicted to give rise to several interesting effects, amongst them quantum state stabilisation and the realisation of a mesoscopic Maxwell's daemon.
Carmichael H, Flindt C, Schöll E, Schöll E   +3 more
core   +1 more source

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro, Sarah Silver, Prishi Patel, Meredith K. Reffner Collins, Kimberly S. Canter, Stephanie Fooks‐Parker, Michael Amylon, Shawna V. Hudson, Jessica L. Schleider, Melissa A. Alderfer, Katie A. Devine   +10 more
wiley   +1 more source