Results 101 to 110 of about 34,461,409 (228)

Time-optimal control of SU(2) quantum operations [PDF]

open access: yes, 2013
We propose an analysis of the time-optimal control of SU(2) quantum operations. By using the Pontryagin Maximum Principle, we show how to determine the optimal trajectory reaching a given target state.
A. Garon, S. Glaser, D. Sugny
semanticscholar   +1 more source

Spacetime is for SU(2) [PDF]

open access: yes, 2010
The generators of rotations, boosts and translations are built up based on the commutation and anticommutation relations of the fundamental two dimensional representation of SU(2).
Shurtleff, Richard
core  

SU(2) Calorons and Magnetic Monopoles

open access: yes, 1998
We investigate the self-dual Yang-Mills gauge configurations on $R^3\times S^1$ when the gauge symmetry SU(2) is broken to U(1) by the Wilson loop. We construct the explicit field configuration for a single instanton by the Nahm method and show that an ...
A.A. Belavin   +24 more
core   +1 more source

Heavy baryons in SU(2) × SU(6) [PDF]

open access: yesPhysical Review D, 1996
The spectrum of baryons containing heavy quarks of one flavor is described in terms of representations of the group SU(2){times}SU(6), where the two factor groups refer to spin rotations of the heavy quarks and spin-flavor rotations of the light quarks, respectively. This symmetry has a natural interpretation in the heavy quark limit.
openaire   +2 more sources

A 92-Year-Old Man with Abdominal Pain Following Intractable Vomiting; a Photo Quiz

open access: yesArchives of Academic Emergency Medicine, 2019
A 92-year-old man with hypertension, chronic obstructive pulmonary disease (COPD), peptic ulcer disease and dementia presented to the emergency department with a 2-day history of abdominal pain in the left upper quadrant, distention, dry cough and ...
Chin-Chu Wu, Aming Chor-Ming Lin
doaj   +1 more source

Anti-de Sitter gravity associated with the supergroup $SU(1,1|2)\times SU(1,1|2)$

open access: yes, 1999
We construct the anti-de Sitter supergravity in three dimensions associated with the supergroup $SU(1,1|2)\times SU(1,1|2)$. The field content and the action are inferred using the fact that $AdS$ supergravity theories in three dimensions are Chern ...
David, Justin R.
core   +1 more source

Exact finite-energy solutions in non-linear SU(2) × SU(2) and SU(2) × SU(1, 1) chiral theories

open access: yesNuclear Physics B, 1979
Lagrangian realizations of the compact (SU(2) × SU(2)) and non-compact (SU(2) × SU(1, 1)) chiral symmetries are considered. A large class of exact solutions to the corresponding pion field equations in 3 + 1 dimensional space-time is found. It contains a sub-class of finite-energy solutions.
M.M. Enikova   +2 more
openaire   +1 more source

An approach for synthetic images of sand deformation based on grain features and prescribed traces and its application

open access: yesYantu gongcheng xuebao
The image-based deformation analysis method (IDA) is currently an important deformation testing technology in the field of soil mechanics and geotechnical engineering.
WANG Yongzhi 1, 2, DUAN Xuefeng 1, 2, CHEN Su 3, TANG Zhaoguang 1, 2, LIU Huida 4, YUAN Xiaoming 1, 2
doaj   +1 more source

Finite size giant magnons in the SU(2) x SU(2) sector of AdS_4 x CP^3

open access: yes, 2008
We use the algebraic curve and Luscher's mu-term to calculate the leading order finite size corrections to the dispersion relation of giant magnons in the SU(2) x SU(2) sector of AdS_4 x CP^3.
A. Gustavsson   +44 more
core   +1 more source

SU(4) and SU(2) Kondo Effects in Carbon Nanotube Quantum Dots

open access: yes, 2007
We study the SU(4) Kondo effect in carbon nanotube quantum dots, where doubly degenerate orbitals form 4-electron ``shells''. The SU(4) Kondo behavior is investigated for one, two and three electrons in the topmost shell.
A. C. Hewson   +8 more
core   +1 more source

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