Ragy and Adesso argue that quantum discord is involved in the formation of a pseudothermal ghost image. We show that quantum discord plays no role in spatial light modulator ghost imaging, i.e., ghost-image formation based on structured illumination realized with laser light that has undergone spatial light modulation by the output from a pseudorandom number generator. Our analysis thus casts d...

We address the experimental estimation of Gaussian quantum discord for a two-mode squeezed thermal state, and demonstrate a measurement scheme based on a pair of homodyne detectors assisted by Bayesian analysis, which provides nearly optimal estimation for small value of discord. In addition, though homodyne detection is not optimal for Gaussian discord, the noise ratio to the ultimate quantum ...

Quantum discord is a manifestation of quantum correlations due to non-commutativity rather than entanglement. Two measures of quantum discord by the amount of non-commutativity via the trace norm and the Hilbert-Schmidt norm respectively are proposed in this paper. These two measures can be calculated easily for any state with arbitrary dimension. It is shown by several examples that these meas...

In this prospective study, we tested a structural model in which adolescents’ perceived self-efficacy to manage parental relationships affected their satisfaction with family life both directly, and indirectly, through its impact on family practices. Findings based on 380 Italian adolescents showed that perceived filial self-efficacy was linked directly and indirectly to satisfaction with famil...

Message Sequence Charts (MSCs) and High-level Message Sequence Charts (HMSC) are formalisms used to describe scenarios of message passing protocols. We propose using Allen’s logic to study the temporal order of the messages. We introduce the concept of discord to quantify the order discrepancies between messages in different nodes of an HMSC and study its algorithmic properties. We show that wh...

We know little about what causes divorce in contexts outside of the West. This paper focuses on marital dissolution in a rural, agrarian context of Nepal that has recently experienced a great deal of social change. Marriage in this context is highly valued, with farreaching significance for not only the husband and wife but also for their extended families. Marital dissolutions due to separatio...

The clinical importance of relationship discord was examined through evaluating the association between relationship discord and multiple measures of impairment and psychological distress in a population-based sample of married and cohabiting adults (N=2,677). In comparison to people that were not in discordant relationships, individuals in discordant relationships reported greater social role ...

We examine the literature on marital discord to identify potential indicators. Welldocumented indicators are found both in the interpersonal and intra-individual realms.Personality factors and other abiding individual difference variables appear to play a rolein the development of marital discord. An integrative model is offered, highlighting thepotential for interpersonal, ...

Quantum phase transition is one of the most interesting aspects in quantum many-body systems. Recently, geometric quantum discord has been introduced to signature the critical behavior of various quantum systems. However, it is well-known that topological quantum phase transition can not be described by the conventional Landau's symmetry breaking theory, and thus it is unknown that whether prev...

Quantum discord refers to an important aspect of quantum correlations for bipartite quantum systems. In our earlier works we have shown that corresponding to every graph (combinatorial) there are quantum states whose properties are reflected in the structure of the corresponding graph. Here, we attempt to develop a graph theoretic study of quantum discord that corresponds to a necessary and suf...