Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/35898
Title: FEEDBACK CONTROL OF QUANTUM SYSTEMS AND ENTANGLEMENT
Authors: VU THANH LONG
Keywords: quantum control, quantum feedback control, stochastic control, non-smooth Lyapunov, entanglement, quantum measurement
Issue Date: 7-Aug-2012
Source: VU THANH LONG (2012-08-07). FEEDBACK CONTROL OF QUANTUM SYSTEMS AND ENTANGLEMENT. ScholarBank@NUS Repository.
Abstract: This thesis studies the measurement-based feedback control of quantum systems. Firstly, a framework is presented to drive the inherently probabilistic nature of quantum measurement towards the deterministic control performance via the feedback control. For the first time, a non-smooth Lyapunov function-like theory is introduced for generic stochastic nonlinear systems. Applying this theory, nonsmooth controls are constructed to almost surely globally stabilize the desired eigenstate of a class of quantum filters, without knowledge of the initial state. Secondly, the real-time implementation problem of measurement-based quantum feedback control is solved by bringing in the time delay control approach in which the time to compute the filter-based control input is fully compensated for by the delay time in the control input. Thirdly, an interesting way, based on the newly introduced concept of simultaneous weak measurement-induced quantum state reduction, is presented to deterministically produce desired entangled states.
URI: http://scholarbank.nus.edu.sg/handle/10635/35898
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
VuTL.pdf1.87 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

319
checked on Dec 11, 2017

Download(s)

49
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.