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  • 2000-2004  (1)
  • 1990-1994  (1)
  • 1985-1989  (2)
  • 1945-1949  (1)
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Material
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Year
  • 1
    Electronic Resource
    Electronic Resource
    The Chemistry of Nitrogen in Humic Acids from Nitric Acid Treated Coal1 (1945)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 67 (1945), S. 625-628 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01220a035
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structure of bis(2,2'-bipyridine)dichlororhodium(III) chloride dihydrate (1991)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 47 (1991), S. 519-522 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S010827019000960X
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Heavy and heavy to light quark expansions (1986)
    Springer
    The European physical journal 32 (1986), S. 43-53 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We analyze the phenomenon of heavy quark condensation within the framework of the QCD sum rule approach. We discuss two alternative expansions for massive quark condensates. The first one (heavy to light quark expansion), introduced by Broadhurst and Generalis, establishes a connection between the heavy and light quark worlds. The other one (heavy quark expansion) is valid when only heavy quark systems are considered. As a byproduct we have obtained the coefficients of $$\left\langle {\bar qq} \right\rangle $$ , $$\left\langle {\bar qGq} \right\rangle $$ , 〈G 2〉 and 〈G 3〉 for all bilinear currents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01441349
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Spectra and hadronic couplings of light hermaphrodite mesons (1987)
    Springer
    The European physical journal 34 (1987), S. 347-360 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We clarify the discrepancies of previous results for the masses and decay amplitudes of hermaphrodite mesons obtained from QCD sum rules. We study the case of the strange quark within a light quark expansion formalism. We find tht the hermaphrodite masses are much higher than the ones of their ordinary meson partners. Our values of the set of masses and continuum thresholds are compared with some other sum rule results. We analyze the hadronic couplings of the isovector 1−+ exotic hermaprodite $$\tilde \rho $$ using a three-point function sum rule evaluated at the symmetric euclidean point. We find that the $$\tilde \rho $$ can be very broad and prefers to decay into ρπ andK * K. Its most characteristic decays are the ones into πγ, ηπ and μ′π. The former and the latter are of the order of (3∼8) MeV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01548817
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Systematic analysis of majorization in quantum algorithms (2004)
    Springer
    The European physical journal 29 (2004), S. 119-132 
    Details
    ISSN: 1434-6079
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Motivated by the need to uncover some underlying mathematical structure of optimal quantum computation, we carry out a systematic analysis of a wide variety of quantum algorithms from the majorization theory point of view. We conclude that step-by-step majorization is found in the known instances of fast and efficient algorithms, namely in the quantum Fourier transform, in Grover’s algorithm, in the hidden affine function problem, in searching by quantum adiabatic evolution and in deterministic quantum walks in continuous time solving a classically hard problem. On the other hand, the optimal quantum algorithm for parity determination, which does not provide any computational speed-up, does not show step-by-step majorization. Lack of both speed-up and step-by-step majorization is also a feature of the adiabatic quantum algorithm solving the 2-SAT “ring of agrees” problem. Furthermore, the quantum algorithm for the hidden affine function problem does not make use of any entanglement while it does obey majorization. All the above results give support to a step-by-step Majorization Principle necessary for optimal quantum computation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjd/e2004-00009-3
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    Paper (German National Licenses)
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