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CERN Document Server 2,043 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.75 sekúnd. 
1.
Overcoming exponential scaling with system size in Trotter-Suzuki implementations of constrained Hamiltonians: 2+1 U(1) lattice gauge theories / Grabowska, Dorota M. (CERN) ; Kane, Christopher (Arizona U.) ; Nachman, Benjamin (LBL, Berkeley) ; Bauer, Christian W. (LBL, Berkeley)
For many quantum systems of interest, the classical computational cost of simulating their time evolution scales exponentially in the system size. [...]
arXiv:2208.03333 ; CERN-TH-2022-133.
- 9 p.
Fulltext
2.
Overcoming exponential volume scaling in quantum simulations of lattice gauge theories / Kane, Christopher F. (Arizona U.) ; Grabowska, Dorota M. (Washington U., Seattle ; CERN) ; Nachman, Benjamin (LBL, Berkeley) ; Bauer, Christian W. (LBL, Berkeley)
Real-time evolution of quantum field theories using classical computers requires resources that scale exponentially with the number of lattice sites. Because of a fundamentally different computational strategy, quantum computers can in principle be used to perform detailed studies of these dynamics from first principles. [...]
arXiv:2212.04619.- 2023 - 10 p. - Published in : PoS LATTICE2022 (2023) 016 Fulltext: document - PDF; 2212.04619 - PDF;
In : 39th International Symposium on Lattice Field Theory (Lattice 2022), Bonn, Germany, 8 - 13 Aug 2022, pp.016
3.
Efficient quantum implementation of 2+1 U(1) lattice gauge theories with Gauss law constraints / Kane, Christopher (Arizona U.) ; Grabowska, Dorota M. (Washington U., Seattle ; CERN) ; Nachman, Benjamin (LBNL, Berkeley) ; Bauer, Christian W. (LBNL, Berkeley)
The study of real-time evolution of lattice quantum field theories using classical computers is known to scale exponentially with the number of lattice sites. [...]
arXiv:2211.10497 ; CERN-TH-2022-195.
- 19 p.
Fulltext
4.
Efficient Representation for Simulating U(1) Gauge Theories on Digital Quantum Computers at All Values of the Coupling / Bauer, Christian W. (LBNL, Berkeley) ; Grabowska, Dorota M. (CERN)
We derive a representation for a lattice U(1) gauge theory with exponential convergence in the number of states used to represent each lattice site that is applicable at all values of the coupling. At large coupling, this representation is equivalent to the Kogut-Susskind electric representation, which is known to provide a good description in this region. [...]
arXiv:2111.08015; CERN-TH-2021-188.- 2023-02-01 - 16 p. - Published in : Phys. Rev. D 107 (2023) L031503 Fulltext: Publication - PDF; 2111.08015 - PDF;
5.
Finding symmetry breaking order parameters with Euclidean neural networks / Smidt, Tess E. (LBL, Berkeley ; Tsinghua U., Beijing) ; Geiger, Mario (LBL, Berkeley ; CERN ; Ecole Polytechnique, Lausanne) ; Miller, Benjamin Kurt (LBL, Berkeley ; Tsinghua U., Beijing ; Freie U., Berlin)
Curie's principle states that "when effects show certain asymmetry, this asymmetry must be found in the causes that gave rise to them". We demonstrate that symmetry equivariant neural networks uphold Curie's principle and can be used to articulate many symmetry-relevant scientific questions into simple optimization problems. [...]
arXiv:2007.02005.- 2021-01-05 - 6 p. - Published in : Phys. Rev. Res.: 3 (2021) , no. 1, pp. L012002 Fulltext: PDF;
6.
Cosmology at high redshift — a probe of fundamental physics / Sailer, Noah (UC, Berkeley) ; Castorina, Emanuele (Milan U. ; CERN) ; Ferraro, Simone (LBNL, Berkeley ; UC, Berkeley (main)) ; White, Martin (UC, Berkeley ; LBNL, Berkeley)
An observational program focused on the high redshift ($2<z<6$) Universe has the opportunity to dramatically improve over upcoming LSS and CMB surveys on measurements of both the standard cosmological model and its extensions. Using a Fisher matrix formalism that builds upon recent advances in Lagrangian perturbation theory, we forecast constraints for future spectroscopic and 21-cm surveys on the standard cosmological model, curvature, neutrino mass, relativistic species, primordial features, primordial non-Gaussianity, dynamical dark energy, and gravitational slip. [...]
arXiv:2106.09713.- 2021-12-21 - 62 p. - Published in : JCAP 2112 (2021) 049 Fulltext: PDF;
7.
Pulsar Timing Probes of Primordial Black Holes and Subhalos / Dror, Jeff A. (LBL, Berkeley ; UC, Berkeley) ; Ramani, Harikrishnan (LBL, Berkeley ; UC, Berkeley) ; Trickle, Tanner (LBL, Berkeley ; UC, Berkeley) ; Zurek, Kathryn M. (CERN ; LBL, Berkeley ; UC, Berkeley)
Pulsars act as accurate clocks, sensitive to gravitational redshift and acceleration induced by transiting clumps of matter. We study the sensitivity of pulsar timing arrays (PTAs) to single transiting compact objects, focusing on primordial black holes and compact subhalos in the mass range from $10^{-12} M _{\odot}$ to well above $100~M_\odot$. [...]
arXiv:1901.04490.- 2019-07-13 - 18 p. - Published in : Phys. Rev. D 100 (2019) 023003 Fulltext: PDF; Fulltext from Publisher: PDF;
8.
Resonant emittance mixing of flat beams in plasma accelerators / Diederichs, Severin (DESY ; CERN) ; Benedetti, Carlo (LBL, Berkeley) ; Pousa, Angel Ferran (DESY) ; Sinn, Alexander (DESY) ; Osterhoff, Jens (DESY ; LBL, Berkeley) ; Schroeder, Carl B. (LBL, Berkeley ; UC, Berkeley, Nucl. Eng. Dept.) ; Thévenet, Maxence (DESY)
Linear colliders rely on high-quality flat beams to achieve the desired event rate, while avoiding potentially deleterious beamstrahlung effects. [...]
arXiv:2403.05871.
- 10.
Fulltext
9.
Searching for axionlike particles with data scouting at ATLAS and CMS / Knapen, Simon (CERN ; UC, Berkeley ; LBL, Berkeley) ; Kumar, Soubhik (UC, Berkeley ; LBL, Berkeley) ; Redigolo, Diego (CERN ; INFN, Florence)
We investigate the physics case for a dedicated trigger-level analysis for very low mass diphoton resonances at ATLAS and CMS and introduce a new photon isolation criterion. This greatly increases the acceptance for light particles at the expense of a somewhat larger Standard Model background. [...]
arXiv:2112.07720; CERN-TH-2021-216.- 2022-06-01 - 14 p. - Published in : Phys. Rev. D 105 (2022) 115012 Fulltext: PhysRevD.105.115012 - PDF; 2112.07720 - PDF;
10.
Some Memories of Tini Veltman / Gaillard, M K (UCLA ; LBL, Berkeley)
2021 - 2 p. - Published in : Acta Phys. Pol. B 52 (2021) 503 Fulltext: PDF;
In : Special volume of Acta Physica Polonica B commemorating Martinus Veltman, pp.503

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