- Max Planck Institute for Gravitational PhysicsDE902 papers
- Centre National de la Recherche ScientifiqueFR408 papers
- University of BirminghamGB324 papers
- University of GlasgowGB320 papers
- California Institute of TechnologyUS313 papers
- University of Wisconsin–MilwaukeeUS307 papers
- Stanford UniversityUS280 papers
- Cardiff UniversityGB277 papers
- Massachusetts Institute of TechnologyUS277 papers
- University of FloridaUS277 papers
- Syracuse UniversityUS274 papers
- Goddard Space Flight CenterUS273 papers
52 papers · 1 filter
Manifestly invariant actions for harmonic self-dual gauge theory
Olaf Lechtenfeld, Boris Zupnik
We discuss alternative descriptions of four-dimensional self-dual Yang-Mills fields in harmonic space with additional commuting spinor coordinates. In particular, the linear analyt…
Effects of biquadratic exchange on the spectrum of elementary excitations in spin ladders
S. Brehmer, H. -J. Mikeska, M. Mueller +2
We investigate the influence of biquadratic exchange interactions on the low-lying excitations of a S=1/2-ladder using perturbation theory, numerical diagonalization of finite syst…
Spin-Liquid phase of the Multiple-Spin Exchange Hamiltonian on the Triangular Lattice
Gregoire Misguich, Claire Lhuillier, Bernard Bernu +1
We performed an exact diagonalization study of the spin liquid phase of the Multiple-Spin Exchange model on the triangular lattice. It is characterized by no Neel Long Range Order…
Spinon signatures in the critical phase of the (1,1/2) ferrimagnet in a magnetic field
A. K. Kolezhuk, H. -J. Mikeska, K. Maisinger +1
We propose an effective theory for the critical phase of a quantum ferrimagnetic chain with alternating spins 1 and 1/2 in an external magnetic field. With the help of the matrix p…
Laser Induced Condensation of Trapped Bosonic Gases
L. Santos, M. Lewenstein, J. I. Cirac +1
We demonstrate that an appropriate sequence of laser pulses allows to condense a gas of trapped bosonic atoms into an arbitrary trap level. Such condensation is robust, can be achi…
AdS/CFT correspondence and coincident D-6-branes
Sergei V. Ketov
A relation between confinement and Maldacena conjecture is briefly discussed. The gauge symmetry enhancement for two coincident D-6-branes is analyzed from the viewpoint of the hyp…