L'opération « Talent » aux États-Unis

in Travail Humain (Le) (1961), (3-4), 193-200

Operational Determination of Multiqubit Entanglement Classes

Conference (2009)

Operational Entanglement Classification for Symmetric N-Qubit States

Conference (2009)

Operational Families of Entanglement Classes for Symmetric N-Qubit States

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 ▲]

Operational Families of Entanglement Classes for Symmetric N-Qubit States

Poster (2009)

Operational model for real-time reconstruction of the electron density profile using GPS TEC measurements

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

Operational monitoring of multi-qubit entanglement classes via tuning of local operations

Poster (2008)

Operational monitoring of multi-qubit entanglement classes with trapped ions

Conference (2008)

Operational multipartite entanglement classes for symmetric photonic qubit states

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 ▲]

Operational Risk and Reputation in the Financial Industry

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 ▲]