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1.
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Machine Learning String Standard Models
/ Deen, Rehan (Oxford U., Theor. Phys.) ; He, Yang-Hui (Nankai U. ; London, City U. ; Merton Coll., Oxford) ; Lee, Seung-Joo (IBS, Daejeon ; CERN) ; Lukas, Andre (Oxford U., Theor. Phys.)
We study machine learning of phenomenologically relevant properties of string compactifications, which arise in the context of heterotic line bundle models. Both supervised and unsupervised learning are considered. [...]
arXiv:2003.13339; CERN-TH-2020-050; CTPU-PTC-20-06.-
2022-02-02 - 10 p.
- Published in : Phys. Rev. D 105 (2022) 046001
Fulltext: 2003.13339 - PDF; PhysRevD.105.046001 - PDF;
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2.
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Machine-Learning Algebraic & Geometric Structures: Implications to String Pheno
/ He, Yang-Hui (speaker) (City University London)
We report some recent experiments in machine-learning applied to various mathematical problems such as computing Hodge numbers, recognizing elliptic fibrations, distinguishing finite simple groups, etc., many of which have direct consequences in string phenomenology. The mysterious success of the ML, often bypassing traditional expensive algorithms, potentially suggests hithertofore unseen structures..
2019 - 2855.
TH institutes; String Geometry and String Phenomenology Institute
External links: Talk details; Event details
In : String Geometry and String Phenomenology Institute
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3.
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Distinguishing Elliptic Fibrations with AI
/ He, Yang-Hui (University Coll. London ; Merton Coll., Oxford ; Nankai U.) ; Lee, Seung-Joo (CERN)
We use the latest techniques in machine-learning to study whether from the landscape of Calabi-Yau manifolds one can distinguish elliptically fibred ones. Using the dataset of complete intersections in products of projective spaces (CICY3 and CICY4, totalling about a million manifolds) as a concrete playground, we find that a relatively simple neural network with forward-feeding multi-layers can very efficiently distinguish the elliptic fibrations, much more so than using the traditional methods of manipulating the defining equations. [...]
arXiv:1904.08530; CERN-TH-2019-046.-
2019-11-10 - 6 p.
- Published in : Phys. Lett. B 798 (2019) 134889
Article from SCOAP3: PDF; Fulltext: PDF;
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4.
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5.
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Mastering the Master Space
/ Forcella, Davide (SISSA, Trieste ; CERN ; INFN, Trieste ) ; Hanany, Amihay (Technion ; Imperial Coll., London) ; He, Yang-Hui (Oxford U. ; Collegium Mertonense, Oxford ; Oxford U., Theor. Phys.) ; Zaffaroni, Alberto (Milan Bicocca U. ; INFN, Milan Bicocca)
Supersymmetric gauge theories have an important but perhaps under-appreciated notion of a master space, which controls the full moduli space. For world-volume theories of D-branes probing a Calabi-Yau singularity X the situation is particularly illustrative. [...]
arXiv:0801.3477; BICOCCA-FT-2008-03; CERN-PH-TH-2008-001; IMPERIAL-TP-2008-AH-02; NI08001; SISSA 2008-02-EP.-
2008 - 10 p.
- Published in : Lett. Math. Phys. 85 (2008) 163-171
External link: Fulltext
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6.
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The Master Space of $N$=1 Gauge Theories
/ Forcella, Davide (SISSA, Trieste ; INFN, Trieste ; CERN) ; Hanany, Amihay (Technion ; Imperial Coll., London) ; He, Yang-Hui (Merton Coll., Oxford ; Oxford U. ; Oxford U., Theor. Phys.) ; Zaffaroni, Alberto (Milan Bicocca U. ; INFN, Milan Bicocca)
The full moduli space M of a class of N=1 supersymmetric gauge theories is studied. For gauge theories living on a stack of D3-branes at Calabi-Yau singularities X, M is a combination of the mesonic and baryonic branches, the former being the symmetric product of X. [...]
arXiv:0801.1585; BICOCCA-FT-07-17; CERN-PH-TH-2007-266; SISSA-98-2007-EP; IMPERIAL-TP-08-AH-01; NI07096; BICOCCA-FT-07-17; CERN-PH-TH-2007-266; SISSA 98-2007-EP; IMPERIAL-TP-08-AH-01; NI07096.-
2008 - 84 p.
- Published in : JHEP 08 (2008) 012
Fulltext: PDF; Preprint: PDF; SISSA/IOP Open Access article: PDF; External link: Fulltext
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7.
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8.
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Development of Measurement and Transverse Feedback System at HLS
/ Wang, Jun H ; He, Duo-hui ; Li, Wei-min ; Liu, Jian H ; Liu, Zu-ping ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai ; Zhou, Z R
In order to observe and cure coupled bunch (CB) instabilities caused by the high order modes (HOMs) of the RF cavity and the resistive wall impedance of the Ring vacuum chamber, which were ineluctable during the operation of the accelerator, an observer system characterized by bunch by bunch measurement of transverse ßoscillation and longitudinal synchrotron phase oscillation has been constructed and commissioned at Hefei Light Source (HLS); meanwhile a transverse bunch-by-bunch feedback system is under construction. The design and development of the systems, as well as diagnostics results of machine instabilities will be presented in this paper..
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2974
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9.
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A Method to Calibrate Beam Position Monitor at HLS 200 MeV LINAC
/ Li, Ji-Hao ; Cao, Yong ; He, Duo-hui ; Jin, Kai ; Lu, Ping ; Sun Bao Gen ; Wang, Jianping ; Wang, Yong ; Zheng, P
In order to improve injection efficiency of HLS 200Mev LINAC, we redesign a new strip line beam position monitor system, which is consisted of a strip line structure and a signal processing system. We decide on an online calibration method based on beam to find out the geometry centre displacement and relative gain offset. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2896
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10.
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200 MeV Linac Upgrade for FEL
/ Zhou, Yingui ; Dong, Sai ; He, Duo-hui ; Li, Ge
The present status of Hefei 200 MeV RF linac are given. By upgrading its present thermal cathode system into the photo cathode system and implement RF phase locked system, using Hefei 200 MeV RF linac as FEL driver is investigated..
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2464
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