6,669 research outputs found
Fermionic reductions of the AdS4 x CP3 superstring
We discuss fermionic reductions of type IIA superstrings on AdS4 x CP3 in
relation to the conjectured AdS4/CFT3 duality. The superstring theory is
described by means of a coset model construction, which is classically
integrable. We discuss the global light-cone symmetries of the action and
related kappa-symmetry gauge choices, and also present the complete quartic
action in covariant form with respect to these. Further, we study integrable
(fermionic) reductions, in particular, a reduction yielding a quadratic action
of two complex fermions on the string world-sheet. Interestingly, this model
appears to be exactly the same as the corresponding integrable reduction found
in the AdS5 x S5 case.Comment: 24 pages, v3 as publishe
Monogamy of Bell's inequality violations in non-signaling theories
We derive monogamy relations (tradeoffs) between strengths of violations of
Bell's inequalities from the non-signaling condition. Our result applies to
general Bell inequalities with an arbitrary large number of partners, outcomes
and measurement settings. The method is simple, efficient and does not require
linear programming. The results are used to derive optimal fidelity for
asymmetric cloning in nonsignaling theories.Comment: 4 pages, 2 figures, published versio
High spin particles with spin-mass coupling
The classical and quantum model of high spin particles is proposed and
analyzed in this paper. The covariant quantization leads to the spectrum of the
particles with the masses correlated with their spins. The particles (and
anti-particles) appear to be orphaned as their potential anti-particle partners
are of different mass.Comment: 11 pages, 1 figure, the paper accepted for publication in Advances in
Applied Clifford Algebr
Ileostomy Adenocarcinoma : a case report
Proctocolectomy is the standard treatment for patients suffering from ulcerative colitis which is long-standing, refractory to pharmacotherapy or otherwise associated with complications. An ileal pouch with pouch-anal anastomosis is fashioned in the majority of cases; however, in some instances terminal ileostomy is preferable. Ileostomy cancer is rare but a number of cases have been reported over the past twenty years suggesting a rising incidence. We report a case that developed thirty years post-operatively.peer-reviewe
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