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Lochlainn O'Raifeartaigh
Lochlainn O'Raifeartaigh (; 11 March 1933 – 18 November 2000) was an Irish physicist in the field of theoretical particle physics. He is best known for O'Raifeartaigh's no-go theorem, the O'Raifeartaigh Theorem, a result in unification theory, and the O'Raifeartaigh Model of supersymmetry breaking. O'Raifeartaigh was born in Clontarf, Dublin in 1933, and attended St. Joseph's C.B.S. in Fairview and Castleknock College. Most of his scientific career was centred on that city, where he obtained his first degrees at University College Dublin (BA in 1953 and MSc in Mathematical Physics in 1956), and spent from 1968 until his death as Senior Professor at the Dublin Institute for Advanced Studies. He obtained his doctorate from the University of Zurich in 1960, under Walter Heitler. He also visited many institutions, notably Madras, IHES Bures, and the Institute for Advanced Study in Princeton, New Jersey, but it was during an extended stay at Syracuse University (1964-8) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish People
The Irish ( or ''Na hÉireannaigh'') are an ethnic group and nation native to the island of Ireland, who share a common ancestry, history and Culture of Ireland, culture. There have been humans in Ireland for about 33,000 years, and it has been continually inhabited for more than 10,000 years (see Prehistoric Ireland). For most of Ireland's recorded history, the Irish have been primarily a Gaels, Gaelic people (see Gaelic Ireland). From the 9th century, small numbers of Vikings settled in Ireland, becoming the Norse-Gaels. Anglo-Normans also Norman invasion of Ireland, conquered parts of Ireland in the 12th century, while Kingdom of England, England's 16th/17th century Tudor conquest of Ireland, conquest and Plantations of Ireland, colonisation of Ireland brought many English people, English and Scottish Lowlands, Lowland Scottish people, Scots to parts of the island, especially the north. Today, Ireland is made up of the Republic of Ireland (officially called Republic of Irela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Particle Physics
Particle physics or high-energy physics is the study of Elementary particle, fundamental particles and fundamental interaction, forces that constitute matter and radiation. The field also studies combinations of elementary particles up to the scale of protons and neutrons, while the study of combinations of protons and neutrons is called nuclear physics. The fundamental particles in the universe are classified in the Standard Model as fermions (matter particles) and bosons (force-carrying particles). There are three Generation (particle physics), generations of fermions, although ordinary matter is made only from the first fermion generation. The first generation consists of Up quark, up and down quarks which form protons and neutrons, and electrons and electron neutrinos. The three fundamental interactions known to be mediated by bosons are electromagnetism, the weak interaction, and the strong interaction. Quark, Quarks cannot exist on their own but form hadrons. Hadrons that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientists From Dublin (city)
A scientist is a person who researches to advance knowledge in an area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales ( 624–545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. History The roles of "scientists", and their predecessors before the emergence of modern scientific disciplines, have evolved considerably over time. Scientists of different eras (and before them, natural philosophers, mathematicians, natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2000 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1933 Births
Events January * January 11 – Australian aviator Sir Charles Kingsford Smith makes the first commercial flight between Australia and New Zealand. * January 17 – The United States Congress votes in favour of Philippines independence, against the wishes of U.S. President Herbert Hoover. * January 28 – "Pakistan Declaration": Choudhry Rahmat Ali publishes (in Cambridge, UK) a pamphlet entitled ''Now or Never; Are We to Live or Perish Forever?'', in which he calls for the creation of a Muslim state in northwest India that he calls "Pakistan, Pakstan"; this influences the Pakistan Movement. * January 30 ** Nazi Party leader Adolf Hitler is appointed Chancellor of Germany (German Reich), Chancellor of Germany by President of Germany Paul von Hindenburg. ** Édouard Daladier forms a government in France in succession to Joseph Paul-Boncour. He is succeeded on October 26 by Albert Sarraut and on November 26 by Camille Chautemps. February * February 1 – Adolf Hitle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics Today
''Physics Today'' is the membership magazine of the American Institute of Physics. First published in May 1948, it is issued on a monthly schedule, and is provided to the members of ten physics societies, including the American Physical Society. It is also available to non-members as a paid annual subscription. The magazine informs readers about important developments in overview articles written by experts, shorter review articles written internally by staff, and also discusses issues and events of importance to the science community in politics, education, and other fields. The magazine provides a historical resource of events associated with physics. For example it discussed debunking the physics of the Star Wars program of the 1980s, and the state of physics in China and the Soviet Union during the 1950s and 1970s. According to the ''Journal Citation Reports'', the journal has a 2017 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Úna Nà Raifeartaigh
Úna Nà Raifeartaigh is an Irish judge and lawyer who has served as a Judge of the European Court of Human Rights since July 2024. She previously served as a Judge of the Court of Appeal from 2019 to 2024 and a Judge of the High Court from 2016 to 2019. Before her elevation to judicial office, she practised as a senior counsel and she was also a legal academic. Her academic and legal expertise is in criminal law and the law of evidence. Early life Nà Raifeartaigh was born to Lochlainn O'Raifeartaigh and Treasa Donnelly. She attended University College Dublin and the King's Inns, graduating from UCD with a BCL degree in 1988. She was a research assistant at the Law Reform Commission from 1988 to 1991. She held the position of Reid Professor of Criminal Law at Trinity College Dublin from 1991 to 1995, a position formerly held by Mary McAleese and Mary Robinson. Legal career She became a barrister in 1993 and a senior counsel in 2009. Her practice mostly focused on crimina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cormac O'Raifeartaigh
Cormac O'Raifeartaigh (Cormac O'Rafferty) is an Irish physicist based at Waterford Institute of Technology in Ireland. A solid-state physicist by training, he is best known for several contributions to the study of the history and philosophy of 20th century science, including the discovery that Albert Einstein once attempted a steady-state model of the expanding universe, many years before Fred Hoyle. O'Raifeartaigh is known to the public as the author of the science bloAntimatterand a monthly science column in The Irish Times. As a science ambassador for Discover Science & Engineering, Discover Science & Engineering Ireland, he is a frequent participant in scientific debates in the Irish media. O'Raifeartaigh graduated from University College Dublin in 1988 with a BSc Hons in experimental physics. A PhD in solid-state physics from Trinity College Dublin in 1994 was followed by Marie Skłodowska-Curie Actions, Marie Curie Research Fellowships at Aarhus University, Denmark and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wigner Medal
The International Colloquium on Group Theoretical Methods in Physics (ICGTMP) is an academic conference devoted to applications of group theory to physics. It was founded in 1972 by Henri Bacry and Aloysio Janner. It hosts a colloquium every two years. The ICGTMP is led by a Standing Committee, which helps select winners for the three major awards presented at the conference: the Wigner Medal (19782018), the Hermann Weyl Prize (since 2002) and the Weyl–Wigner Award (since 2022). Wigner Medal The Wigner Medal was an award designed "to recognize outstanding contributions to the understanding of physics through Group Theory". It was administered by The Group Theory and Fundamental Physics Foundation, a publicly supported organization. The first award was given in 1978 to Eugene Wigner at the Integrative Conference on Group Theory and Mathematical Physics. The collaboration between the Standing Committee of the ICGTMP and the Foundation ended in 2020. The Standing Committe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
W-algebra
In conformal field theory and representation theory, a W-algebra is an associative algebra that generalizes the Virasoro algebra. W-algebras were introduced by Alexander Zamolodchikov, and the name "W-algebra" comes from the fact that Zamolodchikov used the letter W for one of the elements of one of his examples. Definition A W-algebra is an associative algebra that is generated by the modes of a finite number of meromorphic fields W^(z), including the energy-momentum tensor T(z)=W^(z). For h\neq 2, W^(z) is a primary field of conformal dimension h\in\frac12\mathbb^*. The generators (W^_n)_ of the algebra are related to the meromorphic fields by the mode expansions : W^(z) = \sum_ W^_n z^ The commutation relations of L_n=W^_n are given by the Virasoro algebra, which is parameterized by a central charge c\in \mathbb. This number is also called the central charge of the W-algebra. The commutation relations : _m, W^_n= ((h-1)m-n)W^_ are equivalent to the assumption that W^(z) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kac–Moody Algebra
In mathematics, a Kac–Moody algebra (named for Victor Kac and Robert Moody, who independently and simultaneously discovered them in 1968) is a Lie algebra, usually infinite-dimensional, that can be defined by generators and relations through a generalized Cartan matrix. These algebras form a generalization of finite-dimensional semisimple Lie algebras, and many properties related to the structure of a Lie algebra such as its root system, irreducible representations, and connection to flag manifolds have natural analogues in the Kac–Moody setting. A class of Kac–Moody algebras called affine Lie algebras is of particular importance in mathematics and theoretical physics, especially two-dimensional conformal field theory and the theory of exactly solvable models. Kac discovered an elegant proof of certain combinatorial identities, the Macdonald identities, which is based on the representation theory of affine Kac–Moody algebras. Howard Garland and James Lepowsky demonstrated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
