Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Kraus, Sebastian"'
Autor:
Kraus, Sebastian, Koch, Nicolas
The bicycle is a low-cost means of transport linked to low risk of COVID-19 transmission. Governments have incentivized cycling by redistributing street space as part of their post-lockdown strategies. Here, we evaluate the impact of provisional bicy
Externí odkaz:
http://arxiv.org/abs/2008.05883
Air pollution is a threat to human health, in particular since it aggravates respiratory diseases. Early COVID-19 outbreaks in Wuhan, China and Lombardy, Italy coincided with high levels of air pollution drawing attention to a potential role of parti
Externí odkaz:
http://arxiv.org/abs/2011.11127
Akademický článek
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Akademický článek
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Autor:
Arends, Maximilian, Hebecker, Arthur, Heimpel, Konrad, Kraus, Sebastian C., Lust, Dieter, Mayrhofer, Christoph, Schick, Christoph, Weigand, Timo
Publikováno v:
Fortschr. Phys. 62, No. 8, 647-702 (2014)
We analyze the quantum-corrected moduli space of D7-brane position moduli with special emphasis on inflationary model building. D7-brane deformation moduli are key players in two recently proposed inflationary scenarios: The first, D7-brane chaotic i
Externí odkaz:
http://arxiv.org/abs/1405.0283
Publikováno v:
Phys. Lett. B, 737 (2014) 16-22
We analyze string-theoretic large-field inflation in the regime of spontaneously-broken supergravity with conventional moduli stabilization by fluxes and non-perturbative effects. The main ingredient is a shift-symmetric Kahler potential, supplemente
Externí odkaz:
http://arxiv.org/abs/1404.3711
Publikováno v:
Phys. Rev. D 88, 123506 (2013)
Generically, the gravitational-wave or tensor-mode contribution to the primordial curvature spectrum of inflation is tiny if the field-range of the inflaton is much smaller than the Planck scale. We show that this pessimistic conclusion is naturally
Externí odkaz:
http://arxiv.org/abs/1305.1947
Publikováno v:
JHEP 01 (2013) 095
Fluxbrane inflation is a stringy version of D-term inflation in which two fluxed D7-branes move towards each other until their (relative) gauge flux annihilates. Compared to brane-antibrane inflation, the leading-order inflationary potential of this
Externí odkaz:
http://arxiv.org/abs/1207.2766
Publikováno v:
Nucl.Phys. B854 (2012) 509-551
As a first step towards inflation in genuinely F-theoretic setups, we propose a scenario where the inflaton is the relative position of two 7-branes on holomorphic 4-cycles. Non-supersymmetric gauge flux induces an attractive inter-brane potential. T
Externí odkaz:
http://arxiv.org/abs/1104.5016
Publikováno v:
Phys.Rev.D78:065043,2008
The phase diagram of the massive chiral Gross-Neveu model (the massive Nambu-Jona-Lasinio model in 1+1 dimensions) is constructed. In the large N limit, the Hartree-Fock approach can be used. We find numerically a chiral crystal phase separated from
Externí odkaz:
http://arxiv.org/abs/0807.2571