Quantum gates and multipartite entanglement resonances realized by non-uniform cavity motion

We demonstrate the presence of genuine multipartite entanglement between the modes of quantum fields in non-uniformly moving cavities. The transformations generated by the cavity motion can be considered as multipartite quantum gates. We present two setups for which multi-mode entanglement can be generated for bosons and fermions. As a highlight we show that the bosonic genuine multipartite correlations can be resonantly enhanced. Our results provide fundamental insights into the structure of Bogoliubov transformations and suggest strong links between quantum information, quantum fields in curved spacetimes and gravitational analogs by way of the equivalence principle.Comment: v2: extended to 9 pages, 2 figures, appendix with explicit witness inequalities added; to appear in Phys. Rev. D; Ivette Fuentes previously published as Ivette Fuentes-Guridi and Ivette Fuentes-Schulle

The function and influence of the emancipatory binary and the progressive triad in the discourse on citizenship in social studies education

Using an analytic informed by Nietzschean genealogy and systems theory, this paper explains how two conceptual structures (the emancipatory binary and the progressive triad), along with standard citation practices in academic journal writing, function to sustain and regenerate a progressive perspective within social studies education scholarship.  Exemplary essays, drawn from social studies education scholarship from the 1970s, 1980s, and 1990s are presented and examined in reference to the function of the conceptual structures in the evolution of the discourse on citizenship in social studies education

The role of linked data and the semantic web in building operation

Effective Decision Support Systems (DSS) for building service managers require adequate performance data from many building data silos in order to deliver a complete view of building performance. Current performance analysis techniques tend to focus on a limited number of data sources, such as BMS measured data (temperature, humidity, C02), excluding a wealth of other data sources increasingly available in the modern building, including weather data, occupant feedback, mobile sensors & feedback systems, schedule information, equipment usage information. This paper investigates the potential for using Linked Data and Semantic Web technologies to improve interoperability across AEC domains, overcoming many of the roadblocks hindering information transfer currently

"Pirates, robbers and other malefactors": The role played by violence at sea in relations between England and the Hanse towns, 1385 - 1420

The period 1385 – 1420 was an eventful and significant one in Anglo-Hanseatic relations. At its beginning, the English mercantile presence in the Hanse towns was only a few years old, and no real basis for a trading and diplomatic relationship had been arrived at, when an English act of aggression brought into play the issue of piracy and other violence at sea, which would henceforth be one of vital importance in Anglo-Hanseatic relations; it saw the heyday of several notorious pirates, and new policies for their suppression on both sides of the North Sea. Hitherto these years have been treated in this context only as part of examinations of much longer periods. I approach the subject thematically, with some chronological divisions within chapters, examining separately violence by English, Hansards, and third parties, non-violent reprisals, regional and social divisions within England and the Hanse, the Vitalienbrüder, the role of the law, and other factors. This thesis will argue that the impact of specific phenomena, particularly the activities of the Vitalienbrüder, on Anglo-Hanseatic relations has been not only neglected but misunderstood, and that attention to English sources can help flesh out our understanding of the Vitalienbrüder’s history. The thesis will further argue that the most important factor in determining the nature of both violent incidents and the response to them, and the broader tenor of Anglo-Hanseatic relations, was the political and economic rise of the English merchant class in the decades following the Black Death. I propose that the two principal issues in Anglo-Hanseatic relations, reciprocity of resident merchants’ rights and piracy, were inextricably entwined with the fact that the group principally affected by both wielded, in this period, greater political influence than ever before. Hence, the study of piracy’s role in Anglo-Hanseatic relations is a window into the wider social, political, and economic history of the period

Indonesian politics in 2014: democracy’s close call

Indonesian democracy experienced a near miss in 2014, when Jakarta governor Joko Widodo (Jokowi) defeated former general Prabowo Subianto by a margin of 6.3% in the presidential election. Both candidates were populists who rose to prominence in the context of public disillusionment with incumbent president Yudhoyono; Prabowo, however, condemned Indonesia’s democratic system and promised to take Indonesia in a more authoritarian direction. We trace democracy’s close call through five phases: the dying months of Yudhoyono’s presidency, the rise of populist alternatives, the parliamentary elections of April 2014, the July presidential campaign, and the aftermath. We attribute the strength of Prabowo’s campaign to superior organisational and financial support, while Jokowi’s victory rested upon strong identification with him among poor and rural voters. Also determining the outcome was the fact that public satisfaction with democracy remained strong, undermining the effectiveness of Prabowo’s authoritarian-populist message. Nevertheless, democracy’s future remains uncertain, given that Prabowo and his supporters now control a sufficiently large number of parliamentary seats to continue promoting a rollback of democratic reforms

History and prophecy in the Qumran Pesharim: an examination of the key figures and groups in the Dead Sea Scrolls by way of their prophetic designations.

The thesis examines the Qumran pesharim and seeks to test the claim that these texts are solely 'historically' based. Instead, it finds that the interpretations are driven by prophetic concerns, founded on and guided by the biblical concept of 'pesher' as dream-interpretation. The study concentrates on the various sobriquets in the pesharim, and is loosely divided into two main parts. Part one examines those designations of groups, including the Kittim, Ephraim and Manasseh, and the Seekers of Smooth Things. Part two, meanwhile, focuses on the interrelationship between the Teacher of Righteousness, the Wicked Priest, and the Man of Falsehood. One of the dominating themes of the thesis is the stress laid on the relationship between the Teacher and the Man of Falsehood, while the thesis also proposes that 'Ephraim' and 'Seekers of Smooth Things' are an offshoot of the Man of Falsehood's original followers. This allows the opposition to this group in 4QpNahum to be properly understood, and suggests a lurk between the Qumran group and the proto-Pharisaic movement. In concluding, the study condemns the suggestion that the 'masking' by sobriquets intentionally conceals these subjects' identity. Rather, such masking links the intended target with prophetic expectations. In short, the thesis finds that although the two are often distinguished in modem scholarship, the correct interpretation of any aspect of the 'historical' pesharim inevitably relies on the understanding of the prophetic term 'pesher' - and vice versa. The thesis does not tackle the issue of the dating of these texts. Rather, it assumes the consensus view that the pesharim were composed during the first century BCE. Occasionally, it will be evident that a text requires a composition before or after a particular date or event, or even that it must postdate another Qumran text, but in general the question has not been an overriding concern

The thermodynamics of creating correlations: Limitations and optimal protocols

We establish a rigorous connection between fundamental resource theories at the quantum scale. Correlations and entanglement constitute indispensable resources for numerous quantum information tasks. However, their establishment comes at the cost of energy, the resource of thermodynamics, and is limited by the initial entropy. Here, the optimal conversion of energy into correlations is investigated. Assuming the presence of a thermal bath, we establish general bounds for arbitrary systems and construct a protocol saturating them. The amount of correlations, quantified by the mutual information, can increase at most linearly with the available energy, and we determine where the linear regime breaks down. We further consider the generation of genuine quantum correlations, focusing on the fundamental constituents of our universe: fermions and bosons. For fermionic modes, we find the optimal entangling protocol. For bosonic modes, we show that while Gaussian operations can be outperformed in creating entanglement, their performance is optimal for high energies.Comment: 12 pages, 6 figure

Studies on Alternating Current Electrolysis. IV . Mathematical Treatment of Reversible Electron Transfer with Alternating Voltage Control and Distorted Current

A mathematical treatment is developed which yields equations relating faradaic current, voltage, and time when an alternating voltage is applied to an electrolytic cell composed of a plane and auxiliary electrodes immersed in a solution containing initially supporting electrolyte and only reversibly oxidizable or reducible species. Both oxidant and reductant are taken to be soluble, and specific adsorption is assumed to be absent. The voltage across that branch of the equivalent circuit through which only faradaic current flows is assumed to be periodic with fixed amplitude and with or without an additional direct applied voltage component; the resultant current is distorted. Diffusion controlled kinetics is postulated, and it is assumed that equilibrium is essentially established at the electrode surface. The equations developed show that a “steady state” (i.e., a periodic state) is quickly attained, yield diagnostic tests of use in establishing the reversible mechanism, make it possible to determine the standard potential, and finally yield for the periodic state a relation between faradaic current and time. These results are then generalized so as to include systems in which the reversible electrochemical step is followed by a sufficiently slow secondary reaction step. One diagnostic result of interest in the latter connection is that the mean faradaic current vanishes in the periodic state, regardless of the amplitude or of the shape of the applied periodic potential, when the follow‐up reaction occurs to a negligible extent