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CERN Document Server Znaleziono 2,010 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.60 sekund. 
1.
(100)
Experiences with the Polynomial Hybrid Monte Carlo Algorithm / Frezzotti, Roberto (DESY) ; Jansen, Karl (CERN)
We discuss a simulation algorithm for dynamical fermions, which combines the multiboson technique with the Hybrid Monte Carlo algorithm. The algorithm turns out to give a substantial gain over standard methods in practical simulations and to be suitable for dealing with fermion zero modes in a clean and controllable way..
hep-lat/9709033; CERN-TH-97-243; CERN-TH-97-243.- Geneva : CERN, 1998 - 5 p. - Published in : Nucl. Phys. B, Proc. Suppl. 63 (1998) 943-945 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/9709033 PDF
In : 15th International Symposium on Lattice Field Theory : Lattice '97, Edinburgh, UK, 22 - 26 Jul 1997, pp.943-945 - Please contact the library if you need to access this document.
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2.
(91)
A Polynomial Hybrid Monte Carlo Algorithm / Frezzotti, Roberto (DESY) ; Jansen, Karl (CERN)
We present a simulation algorithm for dynamical fermions that combines the multiboson technique with the Hybrid Monte Carlo algorithm. We find that the algorithm gives a substantial gain over the standard methods in practical simulations. [...]
hep-lat/9702016; DESY-97-020; DESY-97-20; CERN-TH-97-21; DESY-97-020; CERN-TH-97-021.- Hamburg : DESY, 1997 - 12 p. - Published in : Phys. Lett. B 402 (1997) 328 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/9702016 PDF - Please contact the library if you need to access this document.
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3.
(37)
How the PHMC algorithm samples configuration space / Frezzotti, R. (Munich, Max Planck Inst.) ; Jansen, K. (CERN)
We show that in practical simulations of lattice QCD with two dynamical light fermion species the PHMC algorithm samples configuration space differently from the commonly used HMC algorithm..
hep-lat/9809005; CERN-TH-98-287; MPI-PHT-98-67; CERN-TH-98-287; MPI-PHT-98-67.- Geneva : CERN, 1999 - 3 p. - Published in : Nucl. Phys. B, Proc. Suppl. 73 (1999) 825-827 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/9809005 PDF
In : 16th International Symposium on Lattice Field Theory, Boulder, CO, USA, 13 - 18 Jul 1998, pp.825-827 - Please contact the library if you need to access this document.
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4.
(34)
The PHMC algorithm for simulations of dynamical fermions; 1, description and properties / Frezzotti, Roberto (Munich, Max Planck Inst.) ; Jansen, Karl (CERN)
We give a detailed description of the so-called Polynomial Hybrid Monte Carlo (PHMC) algorithm. The effects of the correction factor, which is introduced to render the algorithm exact, are discussed, stressing their relevance for the statistical fluctuations and (almost) zero mode contributions to physical observables. [...]
hep-lat/9808011; CERN-TH-98-237; MPI-PHT-98-51; CERN-TH-98-237; MPI-PHT-98-51.- Geneva : CERN, 1999 - 49 p. - Published in : Nucl. Phys. B 555 (1999) 395 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/9808011 PDF - Please contact the library if you need to access this document.
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5.
(26)
A lattice approach to QCD in the chiral regime / Della Morte, M ; Frezzotti, R ; Heitger, J
Non-perturbative lattice studies of QCD in the chiral thermodynamic regime, where chiral symmetry is spontaneously broken, require to deal with almost quark zero modes in a theoretically clean and computationally efficient way. We discuss the basic features and some realistic tests of a formulation, known as lattice tmQCD, that fulfills these requirements [...]
hep-lat/0111048; BICOCCA-FT-2001-25; MS-TP-2001-16.- Milano : Milano-Bicocca Univ. Phys. Dept., 2001 - 11 p. - Published in : PoS hep2001 (2001) 219 Access to fulltext document: PDF; Published version from PoS: PDF; External link: hep-lat/0111048 PDF
In : International Europhysics Conference on High-Energy Physics, Budapest, Hungary, 12 - 18 Jul 2001, pp.219
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6.
(22)
The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis / Frezzotti, Roberto (Munich, Max Planck Inst.) ; Jansen, Karl (CERN)
We compare the performance of the PHMC algorithm with the one of the HMC algorithm in practical simulations of lattice QCD. We show that the PHMC algorithm can lead to an acceleration of numerical simulations. [...]
hep-lat/9808038; CERN-TH-98-272; MPI-PHT-98-66; CERN-TH-98-272; MPI-PHT-98-66.- Geneva : CERN, 1999 - 31 p. - Published in : Nucl. Phys. B 555 (1999) 432 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/9808038 PDF - Please contact the library if you need to access this document.
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7.
(19)
Comparative Benchmarks of full QCD Algorithms / Frezzotti, Roberto (Milan U.) ; Hasenbusch, Martin (Humboldt U., Berlin) ; Wolff, Ulli (Humboldt U., Berlin) ; Heitger, Jochen (DESY) ; Jansen, Karl (CERN) /ALPHA Collaboration
We report performance benchmarks for several algorithms that we have used to simulate the Schr"odinger functional with two flavors of dynamical quarks. They include hybrid and polynomial hybrid Monte Carlo with preconditioning. [...]
hep-lat/0009027; DESY-00-104; HU-EP-00-30; NIC-DESY-00-002; BICOCCA-FT-00-12; BICOCCA-FT-2000-12; DESY-00-002-[SIC!]; DESY-00-104; DESY-2000-002-[SIC!]; DESY-2000-104; HU-EP-2000-30.- Milano : Milano-Bicocca Univ. Phys. Dept., 2001 - 25 p. - Published in : Comput. Phys. Commun. 136 (2001) 1-13 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-lat/0009027 PDF
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8.
(17)
Odd-flavor Hybrid Monte Carlo Algorithm for Lattice QCD / Takaishi, T (Hiroshima University of Economics) ; De Forcrand, Philippe (CERN ; Inst. fur Theoretische Physik, ETH Honggerberg, Zurich)
We discuss hybrid Monte Carlo algorithms for odd-flavor lattice QCD simulations. The algorithms include a polynomial approximation which enables us to simulate odd-flavor QCD in the framework of the hybrid Monte Carlo algorithm. [...]
hep-lat/0108012; CERN-TH-2001-227.- Geneva : CERN, 2002 - 27 p. - Published in : Int. J. Mod. Phys. C 13 (2002) 343-366 Access to fulltext document: PDF; External link: hep-lat/0108012 PDF
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9.
(13)
Full QCD algorithms towards the chiral limit / Hasenbusch, M
I discuss the behaviour of algorithms for dynamical fermions as the sea-quark mass decreases. [...]
DESY-03-145 ; DESY-2003-145. - 2003. - 7 p.
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10.
(12)
Four-fermion operators with improved nearest-neighbour action / Frezzotti, R ; Gabrielli, E ; Pittori, C ; Rossi, G C
ROM-P-805. - 1991. - 19 p.
CERN library copies
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