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Peer Reviewed
See detailOperational Determination of Multiqubit Entanglement Classes
Bastin, Thierry ULg

Conference (2009)

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Peer Reviewed
See detailOperational Determination of Multiqubit Entanglement Classes via Tuning of Local Operations
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

in Physical Review Letters (2009), 102

We present a physical setup with which it is possible to produce arbitrary symmetric long-lived multiqubit entangled states in the internal ground levels of photon emitters, including the paradigmatic ... [more ▼]

We present a physical setup with which it is possible to produce arbitrary symmetric long-lived multiqubit entangled states in the internal ground levels of photon emitters, including the paradigmatic Greenberger-Horne-Zeilinger and W states. In the case of three emitters, where each tripartite entangled state belongs to one of two well-defined entanglement classes, we prove a one-to-one correspondence between well-defined sets of experimental parameters, i.e., locally tunable polarizer orientations, and multiqubit entanglement classes inside the symmetric subspace. [less ▲]

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Peer Reviewed
See detailOperational Entanglement classification of symmetric N-qubit states
Bastin, Thierry ULg

Conference (2011)

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See detailOperational entanglement families of symmetric mixed N-qubit states
Bastin, Thierry ULg; Mathonet, Pierre ULg; Solano, Enrique

in Physical Review A (2015), 91

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Peer Reviewed
See detailOperational experience with Dynamic Line Rating forecast-based solutions to increase usable network transfer capacity
Nguyen, Huu-Minh ULg; Lambin, Jean-Jacques; Vassort, Frédéric et al

in Proceedings of the 45th session of the Council on Large Electric Systems (CIGRE) (2014, August)

This proposed paper focuses on the criteria that need to be met to allow network operators to effectively use Dynamic Line Ratings in real-life operations. Different pilot projects in Europe and around ... [more ▼]

This proposed paper focuses on the criteria that need to be met to allow network operators to effectively use Dynamic Line Ratings in real-life operations. Different pilot projects in Europe and around the world have proven the DLR technology works in the field. The paper will highlight the experience the Belgian TSO, Elia, has had regarding those questions. The specific aspects detailed here is the usability of day-ahead forecasting of DLR. Indeed, most decisions regarding network operation and Electricity Market are taken many hours/days in advance; therefore if DLR is to influence these decisions, a reliable forecast of the dynamic rating values is required. Two-day ahead DLR forecast has shown an average capacity improvement of more than 10% over seasonal rating with 98% confidence, and potential impact on the European market regarding congestion issues is presented. The paper will further highlight 3 years of operation of two critical lines located near the North Sea and impacted by the connection of off-shore wind resources using intra-day and day-ahead forecasting of DLR. The conclusion of those experiences shows that innovative solutions emerge from two-day ahead ampacity forecast provided by DLR. [less ▲]

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See detailOperational Families of Entanglement Classes for Symmetric N-Qubit States
Bastin, Thierry ULg; Krins, Stéphanie ULg; Mathonet, Pierre ULg et al

in Physical Review Letters (2009), 103

We solve the entanglement classification under stochastic local operations and classical communication (SLOCC) for all multipartite symmetric states in the general N-qubit case. For this purpose, we ... [more ▼]

We solve the entanglement classification under stochastic local operations and classical communication (SLOCC) for all multipartite symmetric states in the general N-qubit case. For this purpose, we introduce 2 parameters playing a crucial role, namely, the diversity degree and the degeneracy configuration of a symmetric state. Those parameters give rise to a simple method of identifying operational families of SLOCC entanglement classes of all symmetric N-qubit states, where the number of families grows as the partition function of the number of qubits. [less ▲]

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See detailOperational Modal Analysis using Second-Order Blind Identification
Poncelet, Fabien ULg; Kerschen, Gaëtan ULg; Golinval, Jean-Claude ULg

in 26th International Modal Analysis Conference, Orlando, 2008 (2008)

For modal analysis of large structures, it is unpractical and expensive to use artificial excitation (e.g., shakers). However, engineering structures are most often subject to ambient loads (e.g., traffic ... [more ▼]

For modal analysis of large structures, it is unpractical and expensive to use artificial excitation (e.g., shakers). However, engineering structures are most often subject to ambient loads (e.g., traffic and wind) that can be exploited for modal parameter estimation. One difficulty is that the actual loading conditions cannot generally be measured, and output-only measurements are available. This paper proposes to explore the utility of blind source separation (BSS) techniques for operational modal analysis. The basic idea of BSS is to recover unobserved source signals from their observed mixtures. The feasibility and practicality of the proposed method are demonstrated using an experimental application. [less ▲]

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See detailOperational model for real-time reconstruction of the electron density profile using GPS TEC measurements
Stankov, Stanimir; Warnant, René ULg; Jodogne, Jean-Claude

in Proceedings of the XXVII URSI General Assembly (2002, August)

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See detailOperational monitoring of multi-qubit entanglement classes via tuning of local operations
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

Conference (2008)

Detailed reference viewed: 4 (0 ULg)
See detailOperational monitoring of multi-qubit entanglement classes via tuning of local operations
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

Poster (2008)

Detailed reference viewed: 3 (0 ULg)
See detailOperational monitoring of multi-qubit entanglement classes via tuning of local operations
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

Conference (2008)

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See detailOperational monitoring of multi-qubit entanglement classes with trapped ions
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

Conference (2008)

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See detailOperational monitoring of multi-qubit entanglement classes with trapped ions
Bastin, Thierry ULg; Thiel, C.; von Zanthier, J. et al

Poster (2008)

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Peer Reviewed
See detailOperational multipartite entanglement classes for symmetric photonic qubit states
Kiesel, N.; Wieczorek, W.; Krins, Stéphanie ULg et al

in Physical Review. A (2010), 81

We present experimental schemes that allow us to study the entanglement classes of all symmetric states in multiqubit photonic systems. We compare the efficiency of the proposed schemes and highlight the ... [more ▼]

We present experimental schemes that allow us to study the entanglement classes of all symmetric states in multiqubit photonic systems. We compare the efficiency of the proposed schemes and highlight the relation between the entanglement properties of symmetric Dicke states and a recently proposed entanglement scheme for atoms. In analogy to the latter, we obtain a one-to-one correspondence between well-defined sets of experimental parameters and multiqubit entanglement classes inside the symmetric subspace of the photonic system. [less ▲]

Detailed reference viewed: 39 (11 ULg)
See detailOperational multipartite entanglement classes for symmetric photonic qubit states
Kiesel, N.; Wieczorek, W.; Krins, Stéphanie ULg et al

Poster (2010)

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Peer Reviewed
See detailOperational Risk and Reputation in the Financial Industry
Gillet, Roland; Hübner, Georges ULg; Plunus, Séverine ULg

in Journal of Banking and Finance (2010), 34

By examining stock market reactions to the announcement of operational losses by financial companies, this paper attempts to disentangle operational losses from reputational damage. Our analysis deals ... [more ▼]

By examining stock market reactions to the announcement of operational losses by financial companies, this paper attempts to disentangle operational losses from reputational damage. Our analysis deals with 154 events coming from the FIRST database of OpVantage. Events occurred between 1990 and 2004 in companies belonging to the financial sector and that are listed on the major European and US Stock Exchanges. Results show significant, negative abnormal returns at the announcement date of the loss, along with an increase in the volumes of trade. In cases of internal fraud, the loss in market value is greater that the operational loss amount announced, which is interpreted as a sign of reputational damage. Negative impact is proportionally greater when the loss amount represents a larger share in the company’s net profit. [less ▲]

Detailed reference viewed: 109 (10 ULg)