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9 papers · 2 filters
Higher-spin Gauge and Trace Anomalies in Two-dimensional Backgrounds
Satoshi Iso, Takeshi Morita, Hiroshi Umetsu
Two-dimensional quantum fields in electric and gravitational backgrounds can be described by conformal field theories, and hence all the physical (covariant) quantities can be writ…
Spontaneous Supersymmetry Breaking by Large-N Matrices
Tsunehide Kuroki, Fumihiko Sugino
Motivated by supersymmetry breaking in matrix model formulations of superstrings, we present some concrete models, in which the supersymmetry is preserved for any finite , but g…
Hawking Radiation via Higher-spin Gauge Anomalies
Satoshi Iso, Takeshi Morita, Hiroshi Umetsu
We give a higher-spin generalization of the anomaly method for the Hawking radiation from black holes. In the paper arXiv:0710.0453 higher-spin generalizations of the gauge (and gr…
N=2 Quiver Gauge Model and Partial Supersymmetry Breaking
Hiroshi Itoyama, Kazunobu Maruyoshi, Makoto Sakaguchi
We construct an action of N=2 affine quiver gauge model having non-canonical kinetic terms and equipped with electric and magnetic FI terms. N=2 supersymmetry is shown to be…
A Semiclassical String Description of Wilson Loop with Local Operators
Makoto Sakaguchi, Kentaroh Yoshida
We discuss a semiclassical string description to circular Wilson loops without/with local operator insertions. By considering a semiclassical approximation of type IIB string theor…
Fluxes of Higher-spin Currents and Hawking Radiations from Charged Black Holes
Satoshi Iso, Takeshi Morita, Hiroshi Umetsu
This is an extended version of the previous paper (hep-th/0701272). Quantum fields near horizons can be described in terms of an infinite set of two-dimensional conformal fields. W…