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12 papers · 2 filters
Small object limit of Casimir effect and the sign of the Casimir force
O. Kenneth, S. Nussinov
We show a simple way of deriving the Casimir Polder interaction, present some general arguments on the finiteness and sign of mutual Casimir interactions and finally we derive a si…
Quantum fluctuations of Wilson loops from string models
Y. Kinar, E. Schreiber, J. Sonnenschein +1
We discuss the impact of quadratic quantum fluctuations on the Wilson loop extracted from classical string theory. We show that a large class of models, which includes the near hor…
On the Duality between Perturbative Heterotic Orbifolds and M-Theory on T^4/Z_N
V. Kaplunovsky, J. Sonnenschein, S. Theisen +1
The heterotic string compactified on an orbifold $T^4/\IZ_N$ has gauge group with (massless) states in its twisted sectors which are charged under both…
On the Supergravity Evaluation of Wilson Loop Correlators in Confining Theories
J. Sonnenschein, A. Loewy
We explicitly show the area law behavior of a circular Wilson loop in confining theories from supergravity. We calculate the correlator of two Wilson loops from supergravity in con…
Diffeomorphisms and Holographic Anomalies
C. Imbimbo, A. Schwimmer, S. Theisen +1
Using the relation between diffeomorphisms in the bulk and Weyl transformations on the boundary we study the Weyl transformation properties of the bulk metric on shell and of the b…
Orientifold Points in M Theory
A. Hanany, B. Kol, A. Rajaraman
We identify the lift to M theory of the four types of orientifold points, and show that they involve a chiral fermion on an orbifold fixed circle. From this lift, we compute the nu…