scholarly journals Cohomological framework for contextual quantum computations

2019 ◽  
Vol 19 (13&14) ◽  
pp. 1141-1170
Author(s):  
Robert Raussendorf

We describe a cohomological framework for measurement-based quantum computation in which symmetry plays a central role. Therein, the essential information about the computation is contained in either of two topological invariants, namely two cohomology groups. One of them applies only to deterministic quantum computations, and the other to general probabilistic ones. Those invariants characterize the computational output, and at the same time witness quantumness in the form of contextuality. In result, they give rise to fundamental algebraic structures underlying quantum computation.

2021 ◽  
Vol 11 (1) ◽  
pp. 12-23
Author(s):  
Halime Turkkan

With the development of technology and the dominance of the digital world, typography has become a critical issue. Information design systems are considered as one of the significant areas of graphic design and big data provides essential information on data visualization. This research aims to analyse the effects of typographic elements on visualizing data in terms of visual communication, by discussing the value that typography gives to design space. The research discusses randomly selected 10 infographic design samples published in the last six months on google. From the results, 5 designs with typographic concern were more favourable and visually more striking and preferable than the other 5 designs in terms of design disciplines. As in all areas of graphic design, it is argued that the power of typography is an indisputable concept in data visualization, which is seen as a sub-branch of information design. Keywords: data visualization; design; typography, significance, technology


2020 ◽  
pp. 1-13
Author(s):  
Victoria Sayles

Each Concentrate revision guide is packed with essential information, key cases, revision tips, exam Q&As, and more. Concentrates show you what to expect in a law exam, what examiners are looking for, and how to achieve extra marks. This chapter discusses proprietary rights. These govern people’s ability to use and enjoy both land they physically possess and land physically possessed by others. Whilst technically all land is owned by the Crown, holding an estate in land, and in particular a freehold estate that gives one rights to possess, enjoy, and use the land forever, is tantamount to actual ownership. The other type of proprietary right is an interest in land. Whilst an estate gives one a slice of time to use and enjoy land one physically possesses, an interest gives the right to use and enjoy land physically possessed by another. Proprietary rights can be either legal or equitable in status.


Author(s):  
Iain McDonald ◽  
Anne Street

Each Concentrate revision guide is packed with essential information, key cases, revision tips, exam Q&As, and more. Concentrates show you what to expect in a law exam, what examiners are looking for, and how to achieve extra marks. When a person transfers legal title to another, the legal title is said to vest in the other person. This chapter considers the rules for the transfer of title (ownership) in property in relation to different types of property. The general principle is that unless the property has been transferred by the correct legal rules then the transfer fails; it is said to be imperfect. The chapter begins by briefly considering the legal rules in relation to validly transferring property to another person. It then deals with equitable rules which have developed to overcome the strict application of the legal rules of vesting.


Entropy ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. 996
Author(s):  
Qingshan Xu ◽  
Xiaoqing Tan ◽  
Rui Huang

Recent advances in theoretical and experimental quantum computing raise the problem of verifying the outcome of these quantum computations. The recent verification protocols using blind quantum computing are fruitful for addressing this problem. Unfortunately, all known schemes have relatively high overhead. Here we present a novel construction for the resource state of verifiable blind quantum computation. This approach achieves a better verifiability of 0.866 in the case of classical output. In addition, the number of required qubits is 2N+4cN, where N and c are the number of vertices and the maximal degree in the original computation graph, respectively. In other words, our overhead is less linear in the size of the computational scale. Finally, we utilize the method of repetition and fault-tolerant code to optimise the verifiability.


2008 ◽  
pp. 104-117
Author(s):  
Jayanta Sen ◽  
Mihir Kumar Chakraborty

Two types of logical consequence are compared: one, with respect to matrix and designated elements and the other with respect to ordering in a suitable algebraic structure. Particular emphasis is laid on algebraic structures in which there is no top-element relative to the ordering. The significance of this special condition is discussed. Sequent calculi for a number of such structures are developed. As a consequence it is re-established that the notion of truth as such, not to speak of tautologies, is inessential in order to define validity of an argument.


2018 ◽  
Vol 12 (1) ◽  
pp. 77-92
Author(s):  
Matthias Löwe

Abstract Heterodiegetic narrators are not present in the story they tell. That is how Gérard Genette has defined heterodiegesis. But this definition of heterodiegesis leaves open what ›absence‹ of the narrator really means: If a friend of the protagonist tells the story but does not appear in it, is he therefore heterodiegetic? Or if a narrator tells something that happened before his lifetime, is he therefore heterodiegetic? These open questions reveal the vagueness of Genette’s definition. However, Simone Elisabeth Lang has recently made a clearer proposal to define heterodiegesis. She argues that narrators should be called heterodiegetic only if they are fundamentally distinguished from the ontological status of the fictional characters: Heterodiegetic narrators are not part of the story for logical reasons, because they are presented as inventors of the story. This is, for example, the case in Johann Wolfgang Goethe’s novel Elective Affinities (1809): In the beginning of this novel the narrator presents himself as inventor of the character’s names (»Edward – so we shall call a wealthy nobleman in the prime of life – had been spending several hours of a fine April morning in his nursery-garden«). Based on that recent definition of heterodiegesis my article deals with the question whether such heterodiegetic narrators can be unreliable. My question is: How could you indicate that the inventor of a fictitious story tells something which is not correct or incomplete? In answering this question, I refer to some proposals of Janina Jacke’s article in this journal. Jacke shows that the distinction between homodiegetic and heterodiegetic narrators should not be confused with the distinction between personal and non-personal narrators or with the distinction between restricted and all-knowing narrators. If you make such differentiations, then of course heterodiegetic narrators can be unreliable: They can omit some essential information or interpret the story inappropriately. Heterodiegetic narrators of an invented story can even lie to the reader or deceive themselves about some elements of the invention. That means: A heterodiegetic narration cannot only be value-related unreliable (›discordant narration‹), but also fact-related unreliable. My article delves especially into this type of unreliability and shows that heterodiegetic narrators of a fictitious story can be fact-related unreliable, if they tell something which was not invented by themselves. In that case, the narrator himself sometimes does not really know whether he tells a true or a fictitious story. Such narrators are unreliable if they assert that the story is true, although they are suggesting at the same time that it is not. I call this type of unreliable narrator a ›fabulating chronicler‹ (›fabulierender Chronist‹): On the one hand, such narrators present themselves as chroniclers of historical facts but, on the other hand, they seem to be fabulists who tell a fairy tale. This type of unreliability occurs especially if a narrator tells a legend or a story from the Bible. My article demonstrates this case in detail with two examples, namely two novels by Thomas Mann: The Holy Sinner (1951) and Joseph and His Brothers (1933–1943). My article also discusses some cases where it is not appropriate or counter-intuitive to call a heterodiegetic narrator ›unreliable‹: i. e. the narrator of Thomas Mann’s novel The Magic Mountain (1924) and the narrator of Johann Wolfgang Goethe’s novel Wilhelm Meister’s Apprenticeship (1795/1796). On the one hand, these narrators show some characteristics of unreliability, because they omit essential pieces of information. On the other hand, these narrators are barely shaped as characters, they are nearly non-personal. However, in order to describe a narrator as unreliable, it is – in my opinion – indispensable to refer to some traces of a narrative personality: Figural traits of a narrator provoke the reader to identify all depicting, describing and commenting sentences of a narration as utterances of one and the same ›psychic system‹ (Niklas Luhmann). Only narrators who can be interpreted as such a ›psychic system‹, provoke the reader to assume the role of an analyst or ›detective‹, who perhaps identifies the narrator’s discordance or unreliability. In my article the unreliability of a narration is understood as part of the composition and meaning of a literary work. I argue that a narrator cannot be described as unreliable without designating a semantic motivation for this composition by an act of interpretation. Therefore, my suggestion is that a narration should be merely called unreliable if it encourages the reader not only to imagine the told story, but also to imagine a discordant or unreliable storyteller.


2019 ◽  
Author(s):  
Feng Gao ◽  
Yue Sun ◽  
Feng Jiang ◽  
Xiaoyue Bai ◽  
Chunyu Han

AbstractRNAs have important and diverse functions. Visualizing an isolated RNA in living cells provide us essential information of its roles. By now, there are two kinds of live RNA imaging systems invented, one is the MS2 system and the other is the Cas13a system. In this study, we show that when fused with split-Fp, CasE can be engineered into a live RNA tracking tool.


Author(s):  
R. Vilela Mendes

The two essential ideas in this paper are, on the one hand, that a considerable amount of the power of quantum computation may be obtained by adding to a classical computer a few specialized quantum modules and on the other hand, that such modules may be constructed out of classical systems obeying quantum-like equations where a space coordinate is the evolution parameter (thus playing the role of time in the quantum algorithms).


2021 ◽  
Vol 9 (02) ◽  
pp. 421-435
Author(s):  
Julius M. Edrosolam ◽  
◽  
Luceno Laurena Denisse ◽  
De Guzman Aaron Christian ◽  
Vital Ian Ezekhiel ◽  
...  

Background: The study encourages important and essential information gathered from members who are comparative with the actual presentation. Self-identity is the motivation behind this investigation conceptualizes how being a fan recognizes the actual researchers. Distinguishing self-worth in an instruction encompassing is fundamental. Students should be engaged to prepare their entitlement to articulation following their creating limit building self-esteem and procure information and abilities required for contest reason, dynamic, correspondence, and life challenges. Methods: The Qualitative type of research design applied, which utilizes responses inquiring concerning experiences from the participants viewpoint. Findings: This study examines how self-worth affects student influencers by fandom online and offline communities. Which leads to our central question, What are the benefits of social media in identity for the self-worth of selected PSD influencers? The main themes were: Fame and Fortune, Influence, Genuine Enthusiasts, and Entertainment. Fame and Fortune is the idea that manages cooperation and openness of the student influencers subsequently, it is a condition known while Fortune relates to abundance. Influence has an impact and can muchly affect the impression of others on somebody. Influence can be seen anyplace, either in web-based media or anyplace in PSD. The individuals who have a sizable measure of Influence are called influencers. Influencers might be the scaffold to discovering somebodys worth or the other way around, as found in one of the numerous reactions which express. Genuine Enthusiasts allude to the motivation to fulfill such prerequisites and become more grounded the more expanded the range they are denied. Ultimately, Entertainment gives euphoria and fervor to the watchers. Conclusions: Students can struggle to find their self-worth because of the steady difference in their environmental factors. Students in Philippine School Doha are presented to various types of individuals affected by their activities, giving them trouble finding their self-worth in a school loaded with multiple understudies. Recommendations: The data and observations found in this study could show a more concrete answer if it utilized a more significant response. Analyze and identify the behavior in a more detailed and intricate way from which a more paradigm can form.


Author(s):  
Jill Poole ◽  
James Devenney ◽  
Adam Shaw-Mellors

Each Concentrate revision guide is packed with essential information, key cases, revision tips, exam Q&As, and more. Concentrates show you what to expect in a law exam, what examiners are looking for, and how to achieve extra marks. The doctrine of undue influence is an equitable doctrine allowing a contract to be set aside (the remedy of rescission) at the court’s discretion where there has been a wrongful (undue) exercise of influence by one party over the other. This chapter focuses on instances where the agreement cannot stand in light of undue influence, including instances where the undue influence was exercised by a third party and the contracting party had notice of that undue influence.


Sign in / Sign up

Export Citation Format

Share Document