2,450 research outputs found
Investigations of Holographic Duality in Two Dimensions
No full textThis dissertation explores various structural, geometric, statistical and information-theoretic aspects of models of lower-dimensional holography. Chapter 2 is based on work with Ho Tat Lam, Gustavo J. Turiaci and Herman Verlinde [1]. It explores a class of partially entangled thermal states in the Sachdev-Ye-Kitaev model that interpolates between the thermo-field double state and a pure (product) state. We argue that the holographic dual of this class of states consists of two black holes with their interior regions connected via a domain wall, described by the worldline of a massive particle. We compute the size of the interior region and the entanglement entropy as a function of the temperature of each black hole. We argue that the one-sided bulk reconstruction can access the interior region of the black hole. Chapter 3 is based on work with Luca Iliesiu, Jorrit Kruthoff and Zhenbin Yang [2]. It explores a systematic classification of the possible boundary conditions in Jackiw-Teitelboim gravity and discusses their exact quantization. Each boundary condition that we study will reveal new features in JT gravity related to its matrix integral interpretation, its factorization properties, ensemble averaging interpretation, the definition of the theory at finite cutoff, its relation to the physics of near-extremal black holes and its role as a two-dimensional model of cosmology. Chapter 4 is based partly on [3] and on discussions with Ping Gao, Vladimir Narovlansky and Herman Verlinde. We survey several strategies to explore the UV physics of SYK. We provide a Lorentzian Liouville quantum gravity perspective on the double-scaled model. We then describe the construction of a matrix version of SYK within the framework of minimal string theory
Author Talk: Daniel Herman Discusses His Novel, The Feudist
No full textPoster for an event where CWU History professor Daniel Herman discusses his historical novel The Feudisthttps://digitalcommons.cwu.edu/libraryevents/1223/thumbnail.jp
On the Geometry of the Firewall Partially mixed states in SYK
No full textIn this talk, I introduce and study a class of entangled states in the SYK model, that interpolate between the thermo-field double and a disentangled product of two pure states. The proposed holographic dual geometry consists of two black hole geometries separated by a domain wall. I explain why this wall represents the location of the firewall, that limits the reach of the holographic bulk reconstruction.Verlinde, Herman. (2018). On the Geometry of the Firewall Partially mixed states in SYK. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/197528
“The Pondering Repose of If”: Herman Melville’s Literary Exegesis
No full textThis study examines how Herman Melville’s oeuvre interacts with Old Testament (OT) wisdom literature (the Books of Job, Proverbs, and Ecclesiastes). Using recent historical findings on the rise of religious skepticism and the erosion of Biblical authority in both Europe and the United States, I read Melville as an author steeped in the theological controversies of the eighteenth-century. Specifically, I am interested in teasing out the surprising disavowals of overt religious skepticism in Melville’s writing. By tracing the so-called Solomonic wisdom tradition throughout Melville’s oeuvre, I argue that Melville had developed an epistemology of contemplation towards that body of Biblical texts. Scholarship has traditionally painted Melville as a subversive if not downright skeptical religious thinker. Most studies have produced authorial readings, using texts as forensic evidence to make assertions about the author’s psychology. Incidentally, such assessments have confirmed the narrative of Herman Melville as a grand failed author of the nineteenth century, while ignoring the ambivalent attitudes toward Biblical authority, textual history, and skepticism that emerge in Melville’s writing. The present study intervenes by re-addressing several procedural questions about Melville’s literary dealings with the Bible: How does Melville deal with the distinct topics of religion, theology, religious skepticism, and doubt? How does he think through the relationship between science and religion as well as that of personal religion and theology? I claim that Melville’s work can be read as a continuous contemplation of Biblical wisdom. His writing, I argue, deals productively rather than a destructive with the Bible, its textual history, and authority. Melville’s thinking on theological and religious subjects was not merely subversive but constructive. In mounting this argument, I contradict current scholarship that reads Melville as trying to invent a new American Bible. In contrast, I show how Melville’s philosophical forays, even when critical, are dependent on the ethics, language, and thinking of the OT.Doctor of Philosophy (PhD)Englis
Admissible representations and characters of the affine superalgebras osp(l,2) and ŝl(2|l)
No full textIn this thesis we compute characters and supercharacters of irreducible admissible representations for the two affine superalgebras osp(l,2;C) and l(2|l;C).The work on osp(l, 2; C) includes a derivation of the embedding diagram. We compute the modular transformations of the Neveu-Schwarz characters of osp(l, 2; C) and show that they transform in a manner consistent with the different possible free fermion spin structures on a torus. In chapter 3 we turn our attention to ŝl(2|l;C). Characters and supercharacters are computed for three classes of admissible representation. We have to derive the embedding diagram for one of these classes. We show that the integrable characters in the classes we study are identical to characters of the N = 4 superconformal algebra and that some of the sl(2|l;C) characters have a pole in a certain limit. The residue at this pole is computed and it is found to be proportional to an N = 2 minimal character. Specialising to fractional levels k of the form k + 1 = l/u,u ϵ N, we consider the SL(2|1)/SL{2) coset theory and make a conjecture that it is a product of a parafermion theory and a rational torus model. The appearance of parafermion characters and rational torus model characters in the branching functions of some examples that we have worked out leads to a conjecture for the general form of the branching functions whenever the level k has the form k + 1 = 1/u.The modular T transformation can be worked out easily for any character or super- character we have computed. We work out the 5 transformation of the Neveu-Schwarz characters in two examples and find that we get a unitary S-matrix in each case. The thesis finishes with some interesting identities between ŝu(2) string functions which are a corollary of the work on branching functions
Author Herman Wouk with his dog, ca. 1950s
No full textHerman Wouk, author of "The Caine Mutiny" (1951), "Marjorie Morningstar" (1955), "The Winds of War" (1971), "War and Remembrance" (1978) and many other novels. "The Caine Mutiny" was awarded the Pulitzer Prize for fiction. Photo by Angelo Pinto.Digital imageItem is part of an online exhibition "Jews in America: Our Story," maintained by the Center for Jewish History at http://www.jewsinamerica.org
Herman Leicht
No full textNotes - Mr. Herman Leicht's career and education are discussed including his interest and subsequent career in radio and technology. Details are given of his marriage to Doreen Wilkinson and their family life (1 page
2007-138 Herman Cain
No full textHerman Cain, American author, business man, and activisthttps://scholarworks.harding.edu/hu-2000-events/1570/thumbnail.jp
Herman Melville
No full textThe author of "Moby Dick", Herman Melville, had an eventful life which helped develop his skills as a writer. His life and his major works are discussed here by Rebecca Steffoff
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