Physical sciences topic list of research papers
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Mie scattering distinguishes the topological charge of an optical vortex: a homage to Gustav Mie2009 / Valeria Garbin, Giovanni Volpe, Enrico Ferrari, Michel Versluis, Dan Cojoc, et al.
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Muon Lifetime Measurement with the FAST Detector at PSI
Abstract The Fibre Active Scintillator Target (FAST) experiment at the Paul Scherrer Institute was designed to measure the μ+ lifetime to 4 ps precision and thereby to determine the Fermi coupling constant, GF, to 1 part per million (ppm). In FAST,...
2011 / E. Śanchez -
How the maximum step size in Monte Carlo simulations should be adjusted
Abstract Since the work by Miller, Amon, and Reinhardt, which correctly warned against the indiscriminate adjustment of the maximum step size during Monte Carlo (MC) simulations, some researchers have believed that adjusting the maximum step size...
2011 / Robert H. Swendsen -
Experimental tests of quantum mechanics: Pauli Exclusion Principle Violation (the VIP experiment) and future perspectives
Abstract The Pauli exclusion principle (PEP), as a consequence or the spin-statistics connection, is one of the basic principles of the modern physics. Being at the very basis of our understanding of matter, it spurs a lively debate on its possible...
2011 / C. Curceanu (Petrascu), S. Bartalucci, S. Bertolucci, M. Bragadireanu, M. Cargnelli, et al. -
Rotating mesons in the presence of higher derivative corrections from gauge–string duality
Abstract We consider a rotating quark–antiquark ( q q ¯ ) ...
2010 / M. Ali-Akbari, K. Bitaghsir Fadafan -
Quantum crystals and spin chains
Abstract In this article, we discuss the quantum version of the melting crystal corner in one, two, and three dimensions, generalizing the treatment for the quantum dimer model. Using a mapping to spin chains we find that the two-dimensional case...
2008 / Robbert Dijkgraaf, Domenico Orlando, Susanne Reffert -
An analysis of cosmic neutrinos: Flavor composition at source and neutrino mixing parameters
Abstract We examine the feasibility of deriving neutrino mixing parameters δ and θ 13 from the cosmic neutrino flavor...
2009 / Arman Esmaili, Yasaman Farzan -
Anisotropy of the interface tension of the three-dimensional Ising model
Abstract We determine the interface tension for the 100, 110 and 111 interface of the simple cubic Ising model with nearest-neighbour interaction using novel simulation methods. To overcome the droplet/strip transition and the droplet nucleation...
2009 / E. Bittner, A. Nußbaumer, W. Janke -
Transition form factors of the pion in light-cone QCD sum rules with next-to-next-to-leading order contributions
Abstract The transition pion–photon form factor is studied within the framework of light-cone QCD sum rules. The spectral density for the next-to-leading order corrections is calculated for any Gegenbauer harmonic. At the level of the...
2009 / S.V. Mikhailov, N.G. Stefanis -
Retrofitting models of inflation
Abstract I use the method of retrofitting, developed by Dine, Feng and Silverstein, to generate the scale of inflation dynamically, allowing it to be naturally small. This is a general procedure that may be performed on existing models of...
2009 / Ben Kain -
Large Superconducting Wind Turbine Generators
Abstract To realize large (>10 MW) direct-driven off-shore wind turbines, a number of steps are needed to reduce weight and cost compared to on-shore technologies. One of the major challenges is to provide drive trains which can comply with the...
2012 / A.B. Abrahamsen, N. Magnusson, B.B. Jensen, M. Runde -
Investigations on Neutronic Decoupling Phenomenon in Large Nuclear Reactors
Abstract Characteristic size (size of core expressed in terms of neutron migration length) of a nuclear reactor has been used as a simple thumb rule to assess the degree of neutronic coupling the reactor core. In the present paper, neutronic...
2011 / Om Pal Singh, K. Obaidurrahman -
Non- classical diffusion processes
Abstract This paper surveys quantum effects in diffusion, with special emphasis on isotope effects for hydrogen isotopes in metals. The various possible contributions to the isotope effect are surveyed, and their importance assessed. The bcc metals...
2003 / A.M. Stoneham -
Kochen–Specker theorem studied with neutron interferometer
Abstract The Kochen–Specker theorem shows the incompatibility of noncontextual hidden variable theories with quantum mechanics. Quantum contextuality is a more general concept than quantum non-locality which is quite well tested in experiments using ...
2010 / Yuji Hasegawa, Katharina Durstberger-Rennhofer, Stephan Sponar, Helmut Rauch -
Cold electroweak baryogenesis with Standard Model CP violation
Abstract We study a mechanism that generates the baryon asymmetry of the Universe during a tachyonic electroweak phase transition. We utilize as sole source of CP violation an operator that was recently obtained from the Standard Model by...
2010 / A. Tranberg, A. Hernandez, T. Konstandin, M.G. Schmidt -
Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions
Abstract Weak interaction rates are studied in neutron deficient Kr and Sr waiting-point isotopes in ranges of densities and temperatures relevant for the rp process. The nuclear structure is described within a microscopic model (deformed QRPA) that ...
2009 / P. Sarriguren -
Gauge theories and non-commutative geometry
Abstract It is shown that a d-dimensional classical SU ( N ) Yang–Mills theory can be formulated in a ( ...
2005 / E.G. Floratos, J. Iliopoulos -
Irreversibility of world-sheet renormalization group flow
Abstract We demonstrate the irreversibility of a wide class of world-sheet renormalization group (RG) flows to first order in α ′ ...
2005 / T. Oliynyk, V. Suneeta, E. Woolgar -
CP and T violation in non-perturbative chiral gauge theories
Abstract We give a completely general derivation revealing the precise origin and the quantitative effects of CP and T violations in chiral gauge theories on the lattice.
2005 / Werner Kerler -
Renormalization group and black hole production in large extra dimensions
Abstract It has been suggested that the existence of a non-Gaussian fixed point in general relativity might cure the ultraviolet problems of this theory. Such a fixed point is connected to an effective running of the gravitational coupling. We...
2008 / Benjamin Koch