14,496 research outputs found
BSC students Eric Oberg and Jordan Bodmer attending the Madrigal Dinner
No full textBSC students Eric Oberg and Jordan Bodmer attending the Madrigal Dinne
Eric WalterRobinson and Errock Davis Jordan
No full textMilligan College Students Eric Walter Robinson and Errock Davis Jordan, standing in front of Derthick Hall
(Never) Mind your p's and q's: Von Neumann versus Jordan on the Foundations of Quantum Theory
No full textIn early 1927, Pascual Jordan (1927b) published his version of what came to be known as the Dirac-Jordan statistical transformation theory. Later that year and partly in response to Jordan, John von Neumann (1927a) published the modern Hilbert space formalism of quantum mechanics. Central to both formalisms are expressions for conditional probabilities of finding some value for one quantity given the value of another. Beyond that Jordan and von Neumann had very different views about the appropriate formulation of problems in the new theory. For Jordan, unable to let go of the analogy to classical mechanics, the solution of such problems required the identification of sets of canonically conjugate variables, i.e., p’s and q’s. Jordan (1927e) ran into serious difficulties when he tried to extend his approach from quantities with fully continuous spectra to those with wholly or partly discrete spectra. For von Neumann, not constrained by the analogy to classical physics and aware of the daunting mathematical difficulties facing the approach of Jordan (and, for that matter, Dirac (1927)), the solution of a problem in the new quantum mechanics required only the identification of a maximal set of commuting operators with simultaneous eigenstates. He had no need for p’s and q’s. Related to their disagreement about the appropriate general formalism for the new theory, Jordan and von Neumann stated the characteristic new rules for probabilities in quantum mechanics somewhat differently. Jordan (1927b) was the first to state those rules in full generality, von Neumann (1927a) rephrased them and then sought to derive them from more basic considerations (von Neumann, 1927b). In this paper we reconstruct the central arguments of these 1927 papers by Jordan and von Neumann and of a paper on Jordan’s approach by Hilbert, von Neumann, and Nordheim (1928). We highlight those elements in these papers that bring out the gradual loosening of the ties between the new quantum formalism and classical mechanics
Texas Senate Papers
No full textLetter from Eric Roper to Barbara Jordan confirming a speech at Rochedale Village. The letter describes the audience, including members of the local and federal government
ROSENTHAL, Eric Inventory of documents
No full textCOVERAGE 1904; 1 File; 011 metre.Private papers of Eric Rosenthal, author, journalist and broadcaster
[New publication] Securitisation of urban electricity supply. A political ecology perspective on the cases of Jordan and Lebanon, by Eric Verdeil
No full textGenerator owned by the private company Electricity of Jbeil Éric Verdeil. Securitisation of urban electricity supply A political ecology perspective on the cases of Jordan and Lebanon Eric Verdeil. Haim Yacobi; Mansour Nasasra. Routledge Handbook on Middle Eastern Cities, Routledge, pp.246-264, 2019. Online : halshs-02176158 Abstract: Questions about urban infrastructure, resilience, and violence are central to current urban general literature since infrastructures function as locations ..
Senior Recital: Eric Jordan, Tuba; March 30, 2012
No full textKemp Recital HallMarch 30, 2012Friday Evening8:30 p.m
Senior Recital: Eric Jordan, Tuba; February 27, 2004
No full textKemp Recital HallFriday EveningFebruary 27, 20047:00 p.m
tritrophic-dispersal-model: Code used for creating figures for "Non-hierarchical dispersal promotes stability and resilience in a tri-trophic metacommunity"
No full text<p>This is the commented code used for creating figures for the paper. Any questions regarding the code should be directed to the corresponding author and repository owner (Eric Pedersen). </p>
Eric Velazquez Spanish Language Picture Book Award 2022 Acceptance Speech
No full textAuthor Eric Velazquez gives his Silver Medal acceptance speech for Pulpo Guisado (Holiday House)https://educate.bankstreet.edu/spanishlanguageaward/1001/thumbnail.jp
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