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401 papers · 1 filter
Degenerate kinks and kink-instantons in two-dimensional scalar field models with and supersymmetry
Evgenii Ievlev, Mikhail Shifman
Models with classically degenerate vacua often support quasiclassical configurations of nontrivial topology. In (0+1)-dimensional quantum mechanics with a double-well potential, fo…
Critical Non-Abelian Vortex String and 2D N=2 Black Hole
E. Ievlev, A. Marshakov, G. Sumbatian +1
It has been shown that the non-Abelian vortex string in 4D SQCD with the U(2) gauge group and flavors becomes a critical superstring. Its 10D target space i…
Probing the self-coherence of primordial quantum fluctuations with complexity
Arpan Bhattacharyya, Suddhasattwa Brahma, S. Shajidul Haque +2
A smoking gun for our current paradigm of the early universe would be direct evidence for the quantum mechanical origin of density perturbations which are conjectured to seed the l…
Degenerate Domain Walls in Supersymmetric Theories
Shi Chen, Evgenii Ievlev, Mikhail Shifman
In supersymmetric Yang-Mills theories (SYM) tension-degenerate domain walls are typical. Adding matter fields in fundamental representation we arrive at supersymmetric QCD (SQCD) s…
Search for NS 3-form Flux Induced Vacua for the Critical Non-Abelian Vortex String
E. Ievlev, P. Pichugina, A. Yung
It has been demonstrated that the non-Abelian solitonic vortex string in four-dimensional (4D) supersymmetric QCD (SQCD) with gauge group U(2) and quark hyp…
The Early Universe as an Open Quantum System: Complexity and Decoherence
Arpan Bhattacharyya, Suddhasattwa Brahma, S. Shajidul Haque +2
In this work, we extend previous results, demonstrating how complexity in an open quantum system can identify decoherence between two fields, even in the presence of an acceleratin…