Anas Rochdi | Ecole Polytechnique Federale de Lausanne (original) (raw)
Papers by Anas Rochdi
Information technology (IT) projects are susceptible to changes in the business environment, and ... more Information technology (IT) projects are susceptible to changes in the business environment, and the increasing velocity of change in global business is challenging the management of enterprise systems such as enterprise resource planning (ERP). At the same time, system success depends on the rigor of the project management processes. Scope creep, poor risk management, inadequate allocation of human resources over time, and vendor management are some common problems associated with the implementation of an enterprise system. These issues pose threats to the success of a large-scale software project such as ERP. This research adopts a case study approach to examine how poor project management can imperil the implementation of an ERP system. Having learned the lessons from the failure of its first ERP implementation, the company in this case reengineered its project management practices to successfully carry out its second ERP implementation. Many critical project management factors contributed to the failure and success of this company's ERP system. This study explores and identifies critical elements of project management that contributed to the success of the second ERP implementation. For those organizations adopting ERP, the findings provide a roadmap to follow in order to avoid making critical, but often underestimated, project management mistakes.
Physical Review A, 2011
Nonlocality is a fascinating and counterintuitive aspect of nature, revealed by the violation of ... more Nonlocality is a fascinating and counterintuitive aspect of nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalities can be measured has been proposed by Clauser-Horne-Shimony-Holt (CHSH). However, alternative nonlocality tests can also be carried out. In particular, Bell inequalities requiring multiple measurement settings can provide deeper fundamental insights about quantum nonlocality, as well as offering advantages in the presence of noise and detection inefficiency. In this paper we show how these nonlocality tests can be performed using a commercially available source of entangled photon pairs. We report the violation of a series of these nonlocality tests (I3322, I4422, and chained inequalities). With the violation of the chained inequality with 4 settings per side we put an upper limit at 0.49 on the local content of the states prepared by the source (instead of 0.63 attainable with CHSH). We also quantify the amount of true randomness that has been created during our experiment (assuming fair sampling of the detected events).
Physical Review A, 2011
Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of ... more Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalities can be measured has been proposed by Clauser-Horne-Shimony-Holt (CHSH). However, alternative nonlocality tests can also be carried out. In particular, Bell inequalities requiring multiple measurement settings can provide deeper fundamental insights about quantum nonlocality as well as offering advantages in the presence of noise and detection inefficiency. In this article we show how these nonlocality tests can be performed using a commercially available source of entangled photon pairs. We report the violation of a series of these nonlocality tests (I3322, I4422 and chained inequalities). With the violation of the chained inequality with 4 settings per side we put an upper limit at 0.49 on the local content of the states prepared by the source (instead of 0.63 attainable with CHSH). We also quantify the amount of true randomness that has been created during our experiment (assuming fair sampling of the detected events).
Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of ... more Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalities can be measured has been proposed by Clauser-Horne-Shimony-Holt (CHSH). However, alternative nonlocality tests can also be carried out. In particular, Bell inequalities requiring multiple measurement settings can provide deeper fundamental insights about quantum nonlocality as well as offering advantages in the presence of noise and detection inefficiency. In this article we show how these nonlocality tests can be performed using a commercially available source of entangled photon pairs. We report the violation of a series of these nonlocality tests (I3322, I4422 and chained inequalities). With the violation of the chained inequality with 4 settings per side we put an upper limit at 0.49 on the local content of the states prepared by the source (instead of 0.63 attainable with CHSH). We also quantify the amount of true randomness that has been created during our experiment (assuming fair sampling of the detected events).
The purpose of this position paper is to define the terminology used at Rational to speak about s... more The purpose of this position paper is to define the terminology used at Rational to speak about software architecture and to put in perspective the various concepts involved.
Information technology (IT) projects are susceptible to changes in the business environment, and ... more Information technology (IT) projects are susceptible to changes in the business environment, and the increasing velocity of change in global business is challenging the management of enterprise systems such as enterprise resource planning (ERP). At the same time, system success depends on the rigor of the project management processes. Scope creep, poor risk management, inadequate allocation of human resources over time, and vendor management are some common problems associated with the implementation of an enterprise system. These issues pose threats to the success of a large-scale software project such as ERP. This research adopts a case study approach to examine how poor project management can imperil the implementation of an ERP system. Having learned the lessons from the failure of its first ERP implementation, the company in this case reengineered its project management practices to successfully carry out its second ERP implementation. Many critical project management factors contributed to the failure and success of this company's ERP system. This study explores and identifies critical elements of project management that contributed to the success of the second ERP implementation. For those organizations adopting ERP, the findings provide a roadmap to follow in order to avoid making critical, but often underestimated, project management mistakes.
Physical Review A, 2011
Nonlocality is a fascinating and counterintuitive aspect of nature, revealed by the violation of ... more Nonlocality is a fascinating and counterintuitive aspect of nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalities can be measured has been proposed by Clauser-Horne-Shimony-Holt (CHSH). However, alternative nonlocality tests can also be carried out. In particular, Bell inequalities requiring multiple measurement settings can provide deeper fundamental insights about quantum nonlocality, as well as offering advantages in the presence of noise and detection inefficiency. In this paper we show how these nonlocality tests can be performed using a commercially available source of entangled photon pairs. We report the violation of a series of these nonlocality tests (I3322, I4422, and chained inequalities). With the violation of the chained inequality with 4 settings per side we put an upper limit at 0.49 on the local content of the states prepared by the source (instead of 0.63 attainable with CHSH). We also quantify the amount of true randomness that has been created during our experiment (assuming fair sampling of the detected events).
Physical Review A, 2011
Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of ... more Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalities can be measured has been proposed by Clauser-Horne-Shimony-Holt (CHSH). However, alternative nonlocality tests can also be carried out. In particular, Bell inequalities requiring multiple measurement settings can provide deeper fundamental insights about quantum nonlocality as well as offering advantages in the presence of noise and detection inefficiency. In this article we show how these nonlocality tests can be performed using a commercially available source of entangled photon pairs. We report the violation of a series of these nonlocality tests (I3322, I4422 and chained inequalities). With the violation of the chained inequality with 4 settings per side we put an upper limit at 0.49 on the local content of the states prepared by the source (instead of 0.63 attainable with CHSH). We also quantify the amount of true randomness that has been created during our experiment (assuming fair sampling of the detected events).
Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of ... more Nonlocality is a fascinating and counterintuitive aspect of Nature, revealed by the violation of a Bell inequality. The standard and easiest configuration in which Bell inequalities can be measured has been proposed by Clauser-Horne-Shimony-Holt (CHSH). However, alternative nonlocality tests can also be carried out. In particular, Bell inequalities requiring multiple measurement settings can provide deeper fundamental insights about quantum nonlocality as well as offering advantages in the presence of noise and detection inefficiency. In this article we show how these nonlocality tests can be performed using a commercially available source of entangled photon pairs. We report the violation of a series of these nonlocality tests (I3322, I4422 and chained inequalities). With the violation of the chained inequality with 4 settings per side we put an upper limit at 0.49 on the local content of the states prepared by the source (instead of 0.63 attainable with CHSH). We also quantify the amount of true randomness that has been created during our experiment (assuming fair sampling of the detected events).
The purpose of this position paper is to define the terminology used at Rational to speak about s... more The purpose of this position paper is to define the terminology used at Rational to speak about software architecture and to put in perspective the various concepts involved.