Browsing Journal Articles by Author "Uys, Hermann"

Now showing items 1-5 of 5

Equation of motion for estimation fidelity of monitored oscillating qubits

Author: Bassa, H ; Konrad, T ; Diósi, L ; Uys, Hermann Date: Aug 2017 We study the convergence properties of state estimates of an oscillating qubit being monitored by a sequence of discrete, unsharp measurements. Our method derives a differential equation determining the evolution of the estimation fidelity ... Read more
Generating Greenberger-Horne-Zeilinger states with squeezing and postselection

Author: Alexander, B ; Bollinger, JJ ; Uys, Hermann Date: Jun 2020 Many quantum state preparation methods rely on a combination of dissipative quantum state initialization followed by unitary evolution to a desired target state. Here we demonstrate the usefulness of quantum measurement as an additional tool ... Read more
Noninvasive measurement of dynamic correlation functions

Author: Uhrich, P ; Castrignano, S ; Uys, Hermann ; Kastner, M Date: Aug 2017 The measurement of dynamic correlation functions of quantum systems is complicated by measurement backaction. To facilitate such measurements we introduce a protocol, based on weak ancilla-system couplings, that is applicable to arbitrary ... Read more
Quantum control through measurement feedback

Author: Uys, Hermann ; Bassa, H ; Du Toit, P ; Ghosh, S ; Konrad, T Date: Jun 2018 Measurement combined with feedback that aims to restore a presumed premeasurement quantum state will yield this state after a few measurement-feedback cycles even if the actual state of the system initially had no resemblance to the presumed ... Read more
Real-time state estimation and feedback control of an oscillating qubit via self-fulfilling prophecy (SFP)

Author: Du Toit, PJW ; Burd, SC ; Konrad, T ; Uys, Hermann Date: Dec 2018 We present protocols for feedback control and stabilization of a single qubit undergoing Rabi oscillations. Using a hybrid quantum-classical Bayesian estimation technique we simulate monitoring of the dynamical parameter (Rabi frequency) of ... Read more

Now showing items 1-5 of 5

Browse

All of ResearchSpace
This Collection
- By Issue Date
- Authors
- Titles
- Subjects
- Publication Type
- Cluster
- Impact Area

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing Journal Articles by Author "Uys, Hermann"

Browsing Journal Articles by Author "Uys, Hermann"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect