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Mobility of Epitaxial ZnSe and GaAs bulk semiconductors measured by generalized microwave bimodal cavity contactless method at 20 GHz
No full textA computer-implemented method for quantum compiling for measurement-based unidirectional quantum computation, and related systems
No full textA computer-implemented method for quantum
compiling for measurement-based unidirectional quantum
computation is described.
In the method, electronic processing means 2 are
provided with digital information corresponding to a
10 unitary operator or matrix U, representing a singlequbit or multi-qubit quantum operation to be carried
out, through a measurement-based unidirectional quantum
computation, by a quantum computer 1.
The unitary operator or matrix are then decomposed
15 in terms of Pauli operators, by the aforesaid electronic
processing means 2.
The method, then, comprises directly converting,
by the electronic processing means 2, the unitary
operator or matrix U, decomposed in terms of Pauli
20 operators, into a graph G implementable on the quantum
computer 1. The graph G represents a state of a cluster
of qubits to be processed by the quantum computer 1 to
carry out the desired said quantum operation. In the
graph G, each graph vertex represents a respective qubit
25 of the cluster and each edge of the graph corresponds to
46
an entanglement to be imposed between the two qubits
corresponding to the two vertices connected by the edge.
The aforesaid step of directly converting
comprises identifying the sub-set of entanglements to be
5 implemented between qubits of the cluster and
identifying the sub-set of qubits of the cluster to be
measured, to obtain the graph G representing the state
of said cluster, based on the criterion that the
measurement of the aforesaid identified sub-set of
10 qubits to be measured affects the output state of the
other unmeasured qubits, through the aforesaid
identified entanglements, in a manner corresponding to
the quantum operation to be carried out.
The method finally comprises the step of providing
15 to the quantum computer 1, by the electronic processing
means 2, as the result of the quantum compiling, a graph
description information Q(G) describing the aforesaid
obtained graph (G).
A computer implemented method for performing
20 measurement-based unidirectional quantum computation,
based on the aforesaid computer-implemented method for
quantum compiling, is also described.
A quantum computing system, exploiting said
computer-implemented methods, is also described
Metodo di misura della costante dielettrica e magnetica dei materiali in riflessione/trasmissione ad alta precisione
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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