Studies in History and Philosophy of Modern Physics最新文献_第7页

CHAPTER 3. The Wavefunction and the Quantum State 第三章。波函数和量子态

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-004

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CHAPTER 5. Pilot Wave Theories 第五章。导波理论

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-006

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CHAPTER 7. Relativistic Quantum Field Theory 第七章。相对论量子场论

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-008

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Index 指数

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-010

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CHAPTER 1. Eight Experiments 第1章。八个实验

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-002

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CHAPTER 6. Many Worlds 第六章。许多世界

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-007

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CHAPTER 4. Collapse Theories and the Problem of Local Beables 第四章。崩溃理论与局部泡沫问题

Studies in History and Philosophy of Modern Physics Pub Date : 2019-12-31 DOI: 10.1515/9780691190679-005

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The charm quark as a naturalness success 魅力夸克作为一种自然的成功

Studies in History and Philosophy of Modern Physics Pub Date : 2019-11-01 Epub Date: 2019-07-06 DOI: 10.1016/j.shpsb.2019.06.003

Miguel Ángel Carretero Sahuquillo

{"title":"The charm quark as a naturalness success","authors":"Miguel Ángel Carretero Sahuquillo","doi":"10.1016/j.shpsb.2019.06.003","DOIUrl":"10.1016/j.shpsb.2019.06.003","url":null,"abstract":"<div><p><span>Undeniably, the naturalness principle has had a major role in particle physics during the last decades, in particular in model building. Nowadays, one can find a wide range of different definitions. Some of them seem mutually exclusive, but traditionally, its notion has been linked to the fine-tuning problem. Understanding naturalness as the imposition that fine-tuning problems have to vanish, for instance, due to the existence of new particles, new models as those based in </span>supersymmetry<span> were built. In order to palliate the fine-tuning problem the Higgs sector of the standard model<span> seems to suffer, new physics should have appeared already in the last LHC run. Thus, the persistence of fine-tuning has originated numerous works exploring both, the limits and the different conceptual definitions of naturalness. However, little work has been done re-examining precisely one of the main pillars naturalness advocates: its historical successes. Given the current period in which the critics to the naturalness principle are undergoing, we find important to explore in detail the historical examples often cited, primarily the charm quark proposal and its mass prediction, and see how can this contribute to the debate.</span></span></p></div>","PeriodicalId":54442,"journal":{"name":"Studies in History and Philosophy of Modern Physics","volume":"68 ","pages":"Pages 51-61"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.shpsb.2019.06.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73873528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

On the reduction of general relativity to Newtonian gravitation 关于将广义相对论简化为牛顿万有引力

Studies in History and Philosophy of Modern Physics Pub Date : 2019-11-01 Epub Date: 2019-05-31 DOI: 10.1016/j.shpsb.2019.04.005

Samuel C. Fletcher

引用次数: 26

Deciphering the algebraic CPT theorem 解译代数CPT定理

Studies in History and Philosophy of Modern Physics Pub Date : 2019-11-01 Epub Date: 2019-07-26 DOI: 10.1016/j.shpsb.2019.06.004

Noel Swanson

{"title":"Deciphering the algebraic CPT theorem","authors":"Noel Swanson","doi":"10.1016/j.shpsb.2019.06.004","DOIUrl":"10.1016/j.shpsb.2019.06.004","url":null,"abstract":"<div><p><span><span>The CPT theorem states that any causal, Lorentz-invariant, thermodynamically well-behaved quantum field theory must also be invariant under a reflection symmetry that reverses the direction of time (T), flips spatial parity (P), and conjugates charge (C). Although its physical basis remains obscure, CPT symmetry appears to be necessary in order to unify </span>quantum mechanics with relativity. This paper attempts to decipher the physical reasoning behind proofs of the CPT theorem in algebraic quantum field theory. Ultimately, CPT symmetry is linked to a reversal of the </span><span><math><mrow><msup><mrow><mi>C</mi></mrow><mrow><mtext>*</mtext></mrow></msup></mrow></math></span>-algebraic Lie product that encodes the generating relationship between observables and symmetries. In any physically reasonable relativistic quantum field theory, it is always possible to systematically flip this generating relationship while preserving the dynamics, spectra, and localization properties of physical systems. Rather than the product of three separate reflections, CPT symmetry is revealed to be a single global reflection of the theory's state space.</p></div>","PeriodicalId":54442,"journal":{"name":"Studies in History and Philosophy of Modern Physics","volume":"68 ","pages":"Pages 106-125"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.shpsb.2019.06.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90569969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2