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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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9 papers · 2 filters
Non-commutative World-volume Geometries: Branes on SU(2) and Fuzzy Spheres
A. Yu. Alekseev, A. Recknagel, V. Schomerus
The geometry of D-branes can be probed by open string scattering. If the background carries a non-vanishing B-field, the world-volume becomes non-commutative. Here we explore the q…
Nonlinear sigma model approach for phase disorder transitions and the pseudogap phase in chiral Gross-Neveu, Nambu-Jona-Lasinio models and strong-coupling superconductors
Egor Babaev
We briefly review the nonlinear sigma model approach for the subject of increasing interest: "two-step" phase transitions in the Gross-Neveu and the modified Nambu-Jona-Lasinio mod…
On the Arnold Conjecture and the Atiyah-Patodi-Singer Index Theorem
Mauri Miettinen, Antti J. Niemi
The Arnold conjecture yields a lower bound to the number of periodic classical trajectories in a Hamiltonian system. Here we count these trajectories with the help of a path integr…
On the virial coefficients of nonabelian anyons
Alexios P. Polychronakos
We study a system of nonabelian anyons in the lowest Landau level of a strong magnetic field. Using diagrammatic techniques, we prove that the virial coefficients do not depend on…
Mass generation without phase coherence in the Chiral Gross-Neveu Model at finite temperature and small N in 2+1 dimensions
Egor Babaev
The chiral Gross-Neveu model is one of the most popular toy models for QCD. In the past, it has been studied in detail in the large-N limit. In this paper we study its small-N beha…
Spherically Collapsing Matter in AdS, Holography, and Shellons
Ulf H. Danielsson, Esko Keski-Vakkuri, Martin Kruczenski
We investigate the collapse of a spherical shell of matter in an anti-de Sitter space. We search for a holographic description of the collapsing shell in the boundary theory. It tu…
Knots in interaction
Antti J. Niemi
We study the geometry of interacting knotted solitons. The interaction is local and advances either as a three-body or as a four-body process, depending on the relative orientation…
Generalized statistics in one dimension
Alexios P. Polychronakos
An exposition of the different definitions and approaches to quantum statistics is given, with emphasis in one-dimensional situations. Permutation statistics, scattering statistics…
Fluid Dynamical Profiles and Constants of Motion from d-Branes
R. Jackiw, A. P. Polychronakos
Various fluid mechanical systems enjoy a hidden, higher-dimensional dynamical Poincare symmetry, which arises owing to their descent from a Nambu-Goto action. Also, for the same re…